fc-tourmaline: src/nucleus/pis.c annotate

annotate src/nucleus/pis.c @ 303:f76436d19a7a default tip

!GPRS config: fix long-standing AT+COPS chance hanging bug There has been a long-standing bug in FreeCalypso going back years: sometimes in the AT command bring-up sequence of an ACI-only MS, the AT+COPS command would produce only a power scan followed by cessation of protocol stack activity (only L1 ADC traces), instead of the expected network search sequence. This behaviour was seen in different FC firmware versions going back to Citrine, and seemed to follow some law of chance, not reliably repeatable. This bug has been tracked down and found to be specific to !GPRS configuration, stemming from our TCS2/TCS3 hybrid and reconstruction of !GPRS support that was bitrotten in TCS3.2/LoCosto version. ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3 version and had to be pulled from TCS2 - but as it turns out, there is a new field in the MMR_REG_REQ primitive that needs to be set correctly, and that psa_mms.c module is the place where this initialization needed to be added.

author	Mychaela Falconia <falcon@freecalypso.org>
date	Thu, 08 Jun 2023 08:23:37 +0000
parents	4e78acac3d88
children

rev	line source
0 4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	3 /* Copyright Mentor Graphics Corporation 2002 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	4 /* All Rights Reserved. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	5 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	8 /* SUBJECT TO LICENSE TERMS. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	9 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	10 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	11
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	12 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	13 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	14 /* FILE NAME VERSION */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	15 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	16 /* pis.c Nucleus PLUS 1.14 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	17 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	18 /* COMPONENT */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	19 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	20 /* PI - Pipe Management */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	21 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	22 /* DESCRIPTION */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	23 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	24 /* This file contains the supplemental routines for the pipe */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	25 /* management component. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	26 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	27 /* DATA STRUCTURES */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	28 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	29 /* None */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	30 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	31 /* FUNCTIONS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	32 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	33 /* PIS_Reset_Pipe Reset a pipe */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	34 /* PIS_Send_To_Front_Of_Pipe Send message to pipe's front */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	35 /* PIS_Broadcast_To_Pipe Broadcast a message to pipe */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	36 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	37 /* DEPENDENCIES */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	38 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	39 /* cs_extr.h Common Service functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	40 /* tc_extr.h Thread Control functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	41 /* pi_extr.h Pipe functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	42 /* hi_extr.h History functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	43 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	44 /* HISTORY */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	45 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	46 /* DATE REMARKS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	47 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	48 /* 03-01-1994 Created initial version 1.1 from */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	49 /* routines originally in core */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	50 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	51 /* 03-18-1994 Verified version 1.1 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	52 /* 04-17-1996 updated to version 1.2 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	53 /* 02-04-1998 Corrected SPR434 resulting in */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	54 /* version 1.2a. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	55 /* 03-24-1998 Released version 1.3 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	56 /* 03-26-1999 Released 1.11m (new release */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	57 /* numbering scheme) */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	58 /* 04-17-2002 Released version 1.13m */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	59 /* 11-07-2002 Released version 1.14 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	60 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	61 #define NU_SOURCE_FILE
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	62
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	63
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	64 #include "cs_extr.h" /* Common service functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	65 #include "tc_extr.h" /* Thread control functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	66 #include "pi_extr.h" /* Pipe functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	67 #include "hi_extr.h" /* History functions */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	68 #include "profiler.h" /* ProView interface */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	69
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	70
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	71 /* Define external inner-component global data references. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	72
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	73 extern CS_NODE *PID_Created_Pipes_List;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	74 extern UNSIGNED PID_Total_Pipes;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	75 extern TC_PROTECT PID_List_Protect;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	76
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	77
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	78 /* Define internal component function prototypes. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	79
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	80 VOID PIC_Cleanup(VOID *information);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	81
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	82
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	83 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	84 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	85 /* FUNCTION */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	86 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	87 /* PIS_Reset_Pipe */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	88 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	89 /* DESCRIPTION */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	90 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	91 /* This function resets the specified pipe back to the original */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	92 /* state. Any messages in the pipe are discarded. Also, any */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	93 /* tasks currently suspended on the pipe are resumed with the */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	94 /* reset status. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	95 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	96 /* CALLED BY */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	97 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	98 /* Application */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	99 /* PISE_Reset_Pipe Error checking shell */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	100 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	101 /* CALLS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	102 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	103 /* [HIC_Make_History_Entry] Make entry in history log */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	104 /* TCC_Resume_Task Resume a suspended task */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	105 /* [TCT_Check_Stack] Stack checking function */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	106 /* TCT_Control_To_System Transfer control to system */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	107 /* TCT_System_Protect Protect against system access*/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	108 /* TCT_Unprotect Release protection */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	109 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	110 /* INPUTS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	111 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	112 /* pipe_ptr Pipe control block pointer */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	113 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	114 /* OUTPUTS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	115 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	116 /* NU_SUCCESS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	117 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	118 /* HISTORY */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	119 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	120 /* NAME DATE REMARKS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	121 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	122 /* 03-01-1993 Created initial version 1.0 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	123 /* 04-19-1993 Verified version 1.0 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	124 /* 03-01-1994 Changed function interfaces to */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	125 /* match those in prototype, */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	126 /* added register options, changed */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	127 /* protection logic to reduce */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	128 /* overhead, fixed read and write */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	129 /* pointers to both point at the */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	130 /* start, resulting in version 1.1 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	131 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	132 /* 03-18-1994 Verified version 1.1 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	133 /* 02-04-1998 Corrected SPR434. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	134 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	135 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	136 STATUS PIS_Reset_Pipe(NU_PIPE *pipe_ptr)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	137 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	138
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	139 R1 PI_PCB pipe; / Pipe control block ptr */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	140 PI_SUSPEND suspend_ptr; / Suspend block pointer */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	141 PI_SUSPEND next_ptr; / Next suspend block pointer*/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	142 STATUS preempt; /* Status for resume call */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	143 NU_SUPERV_USER_VARIABLES
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	144
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	145 /* Switch to supervisor mode */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	146 NU_SUPERVISOR_MODE();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	147
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	148 /* Move input pipe pointer into internal pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	149 pipe = (PI_PCB *) pipe_ptr;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	150
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	151
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	152 #ifdef NU_ENABLE_STACK_CHECK
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	153
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	154 /* Call stack checking function to check for an overflow condition. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	155 TCT_Check_Stack();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	156
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	157 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	158
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	159 #ifdef NU_ENABLE_HISTORY
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	160
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	161 /* Make an entry that corresponds to this function in the system history
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	162 log. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	163 HIC_Make_History_Entry(NU_RESET_PIPE_ID, (UNSIGNED) pipe,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	164 (UNSIGNED) 0, (UNSIGNED) 0);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	165
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	166 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	167
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	168 /* Protect against access to the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	169 TCT_System_Protect();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	170
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	171 /* Pickup the suspended task suspension list. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	172 suspend_ptr = pipe -> pi_suspension_list;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	173
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	174 /* Walk the chain task(s) currently suspended on the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	175 preempt = 0;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	176 while (suspend_ptr)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	177 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	178
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	179 /* Resume the suspended task. Insure that the status returned is
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	180 NU_PIPE_RESET. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	181 suspend_ptr -> pi_return_status = NU_PIPE_RESET;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	182
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	183 /* Point to the next suspend structure in the link. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	184 next_ptr = (PI_SUSPEND *) (suspend_ptr -> pi_suspend_link.cs_next);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	185
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	186 /* Resume the specified task. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	187 preempt = preempt \|
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	188 TCC_Resume_Task((NU_TASK *) suspend_ptr -> pi_suspended_task,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	189 NU_PIPE_SUSPEND);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	190
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	191 /* Determine if the next is the same as the head pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	192 if (next_ptr == pipe -> pi_suspension_list)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	193
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	194 /* Clear the suspension pointer to signal the end of the list
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	195 traversal. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	196 suspend_ptr = NU_NULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	197 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	198
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	199 /* Position the suspend pointer to the next block. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	200 suspend_ptr = next_ptr;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	201 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	202
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	203 /* Pickup the urgent message suspension list. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	204 suspend_ptr = pipe -> pi_urgent_list;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	205
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	206 /* Walk the chain task(s) currently suspended on the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	207 while (suspend_ptr)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	208 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	209
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	210 /* Resume the suspended task. Insure that the status returned is
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	211 NU_PIPE_RESET. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	212 suspend_ptr -> pi_return_status = NU_PIPE_RESET;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	213
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	214 /* Point to the next suspend structure in the link. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	215 next_ptr = (PI_SUSPEND *) (suspend_ptr -> pi_suspend_link.cs_next);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	216
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	217 /* Resume the specified task. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	218 preempt = preempt \|
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	219 TCC_Resume_Task((NU_TASK *) suspend_ptr -> pi_suspended_task,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	220 NU_PIPE_SUSPEND);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	221
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	222 /* Determine if the next is the same as the head pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	223 if (next_ptr == pipe -> pi_urgent_list)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	224
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	225 /* Clear the suspension pointer to signal the end of the list
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	226 traversal. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	227 suspend_ptr = NU_NULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	228 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	229
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	230 /* Position the suspend pointer to the next active block. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	231 suspend_ptr = next_ptr;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	232 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	233
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	234 /* Initialize various elements of the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	235 pipe -> pi_available = pipe -> pi_end - pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	236 pipe -> pi_messages = 0;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	237 pipe -> pi_read = pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	238 pipe -> pi_write = pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	239 pipe -> pi_tasks_waiting = 0;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	240 pipe -> pi_suspension_list = NU_NULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	241 pipe -> pi_urgent_list = NU_NULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	242
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	243 #ifdef INCLUDE_PROVIEW
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	244 _RTProf_DumpPipe(RT_PROF_RESET_PIPE,pipe,RT_PROF_OK);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	245 #endif /* INCLUDE_PROVIEW */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	246
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	247 /* Determine if preemption needs to occur. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	248 if (preempt)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	249
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	250 /* Transfer control to system to facilitate preemption. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	251 TCT_Control_To_System();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	252
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	253 /* Release protection against access to the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	254 TCT_Unprotect();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	255
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	256 /* Return to user mode */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	257 NU_USER_MODE();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	258
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	259 /* Return a successful completion. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	260 return(NU_SUCCESS);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	261 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	262
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	263
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	264 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	265 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	266 /* FUNCTION */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	267 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	268 /* PIS_Send_To_Front_Of_Pipe */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	269 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	270 /* DESCRIPTION */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	271 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	272 /* This function sends a message to the front of the specified */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	273 /* message pipe. The message length is determined by the caller. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	274 /* If there are any tasks suspended on the pipe for a message, the */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	275 /* message is copied into the message area of the first waiting */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	276 /* task and that task is resumed. If there is enough room in the */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	277 /* pipe, the message is copied in front of all other messages. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	278 /* If there is not enough room in the pipe, suspension of the */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	279 /* caller is possible. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	280 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	281 /* CALLED BY */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	282 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	283 /* Application */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	284 /* PISE_Send_To_Front_Of_Pipe Error checking shell */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	285 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	286 /* CALLS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	287 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	288 /* CSC_Place_On_List Place on suspend list */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	289 /* CSC_Remove_From_List Remove from suspend list */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	290 /* [HIC_Make_History_Entry] Make entry in history log */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	291 /* TCC_Resume_Task Resume a suspended task */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	292 /* TCC_Suspend_Task Suspend calling task */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	293 /* [TCT_Check_Stack] Stack checking function */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	294 /* TCT_Control_To_System Transfer control to system */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	295 /* TCT_Current_Thread Pickup current thread pointer*/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	296 /* TCT_System_Protect Protect pipe */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	297 /* TCT_Unprotect Release protection */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	298 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	299 /* INPUTS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	300 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	301 /* pipe_ptr Pipe control block pointer */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	302 /* message Pointer to message to send */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	303 /* size Size of message to send */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	304 /* suspend Suspension option if full */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	305 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	306 /* OUTPUTS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	307 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	308 /* NU_SUCCESS If service is successful */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	309 /* NU_PIPE_FULL If pipe is currently full */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	310 /* NU_TIMEOUT If timeout on service expires*/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	311 /* NU_PIPE_DELETED If pipe was deleted during */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	312 /* suspension */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	313 /* NU_PIPE_RESET If pipe was reset during */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	314 /* suspension */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	315 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	316 /* HISTORY */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	317 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	318 /* DATE REMARKS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	319 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	320 /* 03-01-1993 Created initial version 1.0 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	321 /* 04-19-1993 Verified version 1.0 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	322 /* 03-01-1994 Changed function interfaces to */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	323 /* match those in prototype, */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	324 /* added register options, changed */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	325 /* protection logic to reduce */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	326 /* overhead, optimized copy loop, */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	327 /* resulting in version 1.1 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	328 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	329 /* 03-18-1994 Verified version 1.1 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	330 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	331 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	332 STATUS PIS_Send_To_Front_Of_Pipe(NU_PIPE pipe_ptr, VOID message,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	333 UNSIGNED size, UNSIGNED suspend)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	334 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	335
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	336 R1 PI_PCB pipe; / Pipe control block ptr */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	337 PI_SUSPEND suspend_block; /* Allocate suspension block */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	338 PI_SUSPEND suspend_ptr; / Pointer to suspend block */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	339 R2 BYTE_PTR source; /* Pointer to source */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	340 R3 BYTE_PTR destination; /* Pointer to destination */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	341 UNSIGNED copy_size; /* Partial copy size */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	342 R4 INT i; /* Working counter */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	343 UNSIGNED pad = 0; /* Number of pad bytes */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	344 TC_TCB task; / Task pointer */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	345 STATUS preempt; /* Preempt flag */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	346 STATUS status; /* Completion status */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	347 NU_SUPERV_USER_VARIABLES
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	348
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	349 /* Switch to supervisor mode */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	350 NU_SUPERVISOR_MODE();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	351
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	352 /* Move input pipe pointer into internal pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	353 pipe = (PI_PCB *) pipe_ptr;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	354
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	355
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	356 #ifdef NU_ENABLE_STACK_CHECK
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	357
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	358 /* Call stack checking function to check for an overflow condition. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	359 TCT_Check_Stack();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	360
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	361 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	362
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	363 #ifdef NU_ENABLE_HISTORY
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	364
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	365 /* Make an entry that corresponds to this function in the system history
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	366 log. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	367 HIC_Make_History_Entry(NU_SEND_TO_FRONT_OF_PIPE_ID, (UNSIGNED) pipe,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	368 (UNSIGNED) message, (UNSIGNED) size);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	369
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	370 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	371
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	372 /* Initialize the status as successful. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	373 status = NU_SUCCESS;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	374
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	375 /* Protect against simultaneous access to the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	376 TCT_System_Protect();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	377
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	378 /* Determine if an extra word of overhead needs to be added to the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	379 calculation. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	380 if (pipe -> pi_fixed_size)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	381
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	382 /* No overhead. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	383 i = 0;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	384 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	385 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	386
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	387 /* Variable messages have one additional word of overhead. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	388 i = sizeof(UNSIGNED);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	389
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	390 /* Calculate the number of pad bytes necessary to keep the pipe
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	391 write pointer on an UNSIGNED data element alignment. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	392 pad = (((size + sizeof(UNSIGNED) - 1)/sizeof(UNSIGNED)) *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	393 sizeof(UNSIGNED)) - size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	394
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	395 /* Insure that padding is included in the overhead. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	396 i = i + ((INT) pad);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	397
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	398 /* Make special check to see if a suspension needs to be
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	399 forced for a variable length message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	400 if ((pipe -> pi_suspension_list) && (pipe -> pi_messages))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	401 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	402
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	403 /* Pickup task control block pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	404 task = (TC_TCB *) TCT_Current_Thread();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	405
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	406 /* Now we know that there are other task(s) are suspended trying
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	407 to send a variable length message. Determine whether or not
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	408 a suspension should be forced. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	409 if ((pipe -> pi_fifo_suspend) \|\|
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	410 (suspend == NU_NO_SUSPEND) \|\|
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	411 ((pipe -> pi_suspension_list) -> pi_suspend_link.cs_priority <=
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	412 TCC_Task_Priority(task)))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	413
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	414 /* Bump the computed size to avoid placing the new variable
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	415 length message ahead of the suspended tasks. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	416 i = (INT) pipe -> pi_available;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	417 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	418 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	419
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	420 /* Determine if there is enough room in the pipe for the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	421 if (pipe -> pi_available < (size + i))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	422 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	423
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	424 /* pipe does not have room for the message. Determine if
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	425 suspension is required. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	426 if (suspend)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	427 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	428
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	429 /* Suspension is requested. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	430
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	431 /* Increment the number of tasks waiting. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	432 pipe -> pi_tasks_waiting++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	433
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	434 #ifdef INCLUDE_PROVIEW
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	435 _RTProf_DumpPipe(RT_PROF_SEND_TO_FRONT_OF_PIPE,pipe,RT_PROF_WAIT);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	436 #endif /* INCLUDE_PROVIEW */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	437
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	438 /* Setup the suspend block and suspend the calling task. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	439 suspend_ptr = &suspend_block;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	440 suspend_ptr -> pi_pipe = pipe;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	441 suspend_ptr -> pi_suspend_link.cs_next = NU_NULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	442 suspend_ptr -> pi_suspend_link.cs_previous = NU_NULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	443 suspend_ptr -> pi_message_area = (BYTE_PTR) message;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	444 suspend_ptr -> pi_message_size = size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	445 task = (TC_TCB *) TCT_Current_Thread();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	446 suspend_ptr -> pi_suspended_task = task;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	447
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	448 /* Place the task on the urgent message suspension list. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	449 CSC_Place_On_List((CS_NODE **) &(pipe -> pi_urgent_list),
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	450 &(suspend_ptr -> pi_suspend_link));
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	451
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	452 /* Move the head pointer of the list to make this suspension the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	453 first in the list. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	454 pipe -> pi_urgent_list = (PI_SUSPEND *)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	455 (pipe -> pi_urgent_list) -> pi_suspend_link.cs_previous;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	456
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	457 /* Finally, suspend the calling task. Note that the suspension call
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	458 automatically clears the protection on the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	459 TCC_Suspend_Task((NU_TASK *) task, NU_PIPE_SUSPEND,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	460 PIC_Cleanup, suspend_ptr, suspend);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	461
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	462 /* Pickup the return status. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	463 status = suspend_ptr -> pi_return_status;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	464 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	465 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	466 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	467
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	468 /* Return a status of NU_PIPE_FULL because there is no
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	469 room in the pipe for the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	470 status = NU_PIPE_FULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	471
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	472 #ifdef INCLUDE_PROVIEW
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	473 _RTProf_DumpPipe(RT_PROF_SEND_TO_FRONT_OF_PIPE,pipe,RT_PROF_FAIL);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	474 #endif /* INCLUDE_PROVIEW */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	475
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	476 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	477 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	478 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	479 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	480
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	481 /* Determine if a task is waiting on an empty pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	482 if ((pipe -> pi_suspension_list) && (pipe -> pi_messages == 0))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	483 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	484
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	485 /* Task is waiting on pipe for a message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	486
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	487 /* Decrement the number of tasks waiting on pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	488 pipe -> pi_tasks_waiting--;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	489
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	490 #ifdef INCLUDE_PROVIEW
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	491 _RTProf_DumpPipe(RT_PROF_SEND_TO_FRONT_OF_PIPE,pipe,RT_PROF_OK);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	492 #endif /* INCLUDE_PROVIEW */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	493
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	494 /* Remove the first suspended block from the list. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	495 suspend_ptr = pipe -> pi_suspension_list;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	496 CSC_Remove_From_List((CS_NODE **) &(pipe -> pi_suspension_list),
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	497 &(suspend_ptr -> pi_suspend_link));
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	498
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	499 /* Setup the source and destination pointers. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	500 source = (BYTE_PTR) message;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	501 destination = suspend_ptr -> pi_message_area;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	502
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	503 /* Initialize the return status. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	504 suspend_ptr -> pi_return_status = NU_SUCCESS;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	505
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	506 /* Loop to actually copy the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	507 i = (INT) size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	508 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	509 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	510 (destination++) = (source);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	511 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	512 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	513 source++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	514 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	515
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	516 /* Return the size of the message copied. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	517 suspend_ptr -> pi_actual_size = size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	518
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	519 /* Wakeup the waiting task and check for preemption. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	520 preempt =
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	521 TCC_Resume_Task((NU_TASK *) suspend_ptr -> pi_suspended_task,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	522 NU_PIPE_SUSPEND);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	523
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	524 /* Determine if preemption needs to take place. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	525 if (preempt)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	526
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	527 /* Transfer control to the system if the resumed task function
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	528 detects a preemption condition. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	529 TCT_Control_To_System();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	530 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	531 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	532 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	533
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	534 /* There is enough room in the pipe and no task is waiting. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	535
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	536 /* Setup the source pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	537 source = (BYTE_PTR) message;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	538 destination = pipe -> pi_read;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	539
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	540 /* Process according to the type of message supported. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	541 if (pipe -> pi_fixed_size)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	542 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	543
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	544 /* Fixed-size message pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	545
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	546 /* Determine if the read pointer is at the top of the pipe
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	547 area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	548 if (destination == pipe -> pi_start)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	549
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	550 /* Prepare to place the message in the lower part of the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	551 pipe area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	552 destination = pipe -> pi_end - size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	553 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	554
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	555 /* Backup the length of the message from the current
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	556 read pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	557 destination = destination - size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	558
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	559 /* Adjust the actual read pointer before the copy is done. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	560 pipe -> pi_read = destination;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	561
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	562 /* Copy the message into the pipe area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	563 i = (INT) size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	564 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	565 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	566 (destination++) = (source);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	567 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	568 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	569 source++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	570 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	571 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	572 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	573 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	574
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	575 /* Variable-length message pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	576
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	577 /* Calculate the number of bytes remaining from the write
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	578 pointer to the bottom of the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	579 copy_size = destination - pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	580
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	581 /* Determine if part of the message needs to be placed at the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	582 bottom of the pipe area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	583 if (copy_size < (size + i))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	584
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	585 /* Compute the starting location for the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	586 destination = pipe -> pi_end - ((size + i) - copy_size);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	587 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	588
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	589 /* Compute the starting location for the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	590 destination = destination - (size + i);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	591
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	592 /* Adjust the actual pipe read pointer also. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	593 pipe -> pi_read = destination;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	594
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	595 /* Place message size in first location. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	596 ((UNSIGNED ) destination) = size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	597 destination = destination + sizeof(UNSIGNED);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	598
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	599 /* Check for a wrap-around condition on the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	600 if (destination >= pipe -> pi_end)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	601
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	602 /* Wrap the write pointer back to the top of the pipe
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	603 area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	604 destination = pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	605
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	606 /* Decrement the number of bytes remaining for this
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	607 extra word of overhead. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	608 pipe -> pi_available = pipe -> pi_available -
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	609 sizeof(UNSIGNED);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	610
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	611 /* Calculate the number of bytes remaining from the write
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	612 pointer to the bottom of the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	613 copy_size = pipe -> pi_end - destination;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	614
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	615 /* Determine if the message needs to be wrapped around the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	616 edge of the pipe area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	617 if (copy_size >= (size + pad))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	618 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	619
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	620 /* Copy the whole message at once. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	621 i = (INT) size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	622 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	623 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	624 (destination++) = (source);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	625 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	626 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	627 source++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	628 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	629 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	630 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	631 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	632
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	633 /* Copy the first half of the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	634 i = (INT) copy_size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	635 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	636 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	637 (destination) = (source++);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	638 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	639 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	640 destination++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	641 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	642
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	643 /* Copy the second half of the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	644 destination = pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	645
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	646 /* Determine if there is anything left to copy. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	647 if (size > copy_size)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	648 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	649 /* Yes, there is something to copy. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	650 i = (INT) (size - copy_size);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	651 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	652 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	653 (destination++) = (source);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	654 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	655 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	656 source++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	657 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	658 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	659 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	660 /* Decrement the number of available bytes. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	661 pipe -> pi_available = pipe -> pi_available - pad;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	662 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	663
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	664 /* Decrement the number of available bytes. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	665 pipe -> pi_available = pipe -> pi_available - size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	666
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	667 /* Increment the number of messages in the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	668 pipe -> pi_messages++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	669
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	670 #ifdef INCLUDE_PROVIEW
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	671 _RTProf_DumpPipe(RT_PROF_SEND_TO_FRONT_OF_PIPE,pipe,RT_PROF_OK);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	672 #endif /* INCLUDE_PROVIEW */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	673
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	674 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	675 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	676
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	677 /* Release protection against access to the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	678 TCT_Unprotect();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	679
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	680 /* Return to user mode */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	681 NU_USER_MODE();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	682
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	683 /* Return the completion status. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	684 return(status);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	685 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	686
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	687
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	688 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	689 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	690 /* FUNCTION */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	691 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	692 /* PIS_Broadcast_To_Pipe */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	693 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	694 /* DESCRIPTION */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	695 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	696 /* This function sends a message to all tasks waiting for a message */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	697 /* from the specified pipe. If there are no tasks waiting for a */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	698 /* message the service performs like a standard send request. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	699 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	700 /* CALLED BY */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	701 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	702 /* Application */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	703 /* PISE_Broadcast_To_Pipe Error checking shell */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	704 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	705 /* CALLS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	706 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	707 /* CSC_Place_On_List Place on suspend list */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	708 /* CSC_Priority_Place_On_List Place on priority list */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	709 /* CSC_Remove_From_List Remove from suspend list */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	710 /* [HIC_Make_History_Entry] Make entry in history log */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	711 /* TCC_Resume_Task Resume a suspended task */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	712 /* TCC_Suspend_Task Suspend calling task */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	713 /* TCC_Task_Priority Pickup task's priority */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	714 /* [TCT_Check_Stack] Stack checking function */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	715 /* TCT_Control_To_System Transfer control to system */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	716 /* TCT_Current_Thread Pickup current thread pointer*/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	717 /* TCT_System_Protect Protect pipe */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	718 /* TCT_Unprotect Release protection */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	719 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	720 /* INPUTS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	721 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	722 /* pipe_ptr Pipe control block pointer */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	723 /* message Pointer to message to send */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	724 /* size Size of message to send */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	725 /* suspend Suspension option if full */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	726 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	727 /* OUTPUTS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	728 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	729 /* NU_SUCCESS If service is successful */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	730 /* NU_PIPE_FULL If pipe is currently full */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	731 /* NU_TIMEOUT If timeout on service expires*/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	732 /* NU_PIPE_DELETED If pipe was deleted during */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	733 /* suspension */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	734 /* NU_PIPE_RESET If pipe was reset during */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	735 /* suspension */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	736 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	737 /* HISTORY */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	738 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	739 /* DATE REMARKS */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	740 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	741 /* 03-01-1993 Created initial version 1.0 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	742 /* 04-19-1993 Verified version 1.0 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	743 /* 03-01-1994 Changed function interfaces to */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	744 /* match those in prototype, */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	745 /* added register options, changed */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	746 /* protection logic to reduce */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	747 /* overhead, optimized copy loop, */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	748 /* resulting in version 1.1 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	749 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	750 /* 03-18-1994 Verified version 1.1 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	751 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	752 /*************************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	753 STATUS PIS_Broadcast_To_Pipe(NU_PIPE pipe_ptr, VOID message,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	754 UNSIGNED size, UNSIGNED suspend)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	755 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	756
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	757 R1 PI_PCB pipe; / Pipe control block ptr */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	758 PI_SUSPEND suspend_block; /* Allocate suspension block */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	759 PI_SUSPEND suspend_ptr; / Pointer to suspend block */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	760 R2 BYTE_PTR source; /* Pointer to source */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	761 R3 BYTE_PTR destination; /* Pointer to destination */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	762 UNSIGNED copy_size; /* Partial copy size */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	763 UNSIGNED pad = 0; /* Number of pad bytes */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	764 R4 INT i; /* Working counter */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	765 TC_TCB task; / Task pointer */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	766 STATUS preempt; /* Preempt flag */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	767 STATUS status; /* Completion status */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	768 NU_SUPERV_USER_VARIABLES
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	769
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	770 /* Switch to supervisor mode */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	771 NU_SUPERVISOR_MODE();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	772
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	773 /* Move input pipe pointer into internal pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	774 pipe = (PI_PCB *) pipe_ptr;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	775
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	776
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	777 #ifdef NU_ENABLE_STACK_CHECK
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	778
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	779 /* Call stack checking function to check for an overflow condition. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	780 TCT_Check_Stack();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	781
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	782 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	783
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	784 #ifdef NU_ENABLE_HISTORY
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	785
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	786 /* Make an entry that corresponds to this function in the system history
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	787 log. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	788 HIC_Make_History_Entry(NU_BROADCAST_TO_PIPE_ID, (UNSIGNED) pipe,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	789 (UNSIGNED) message, (UNSIGNED) size);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	790
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	791 #endif
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	792
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	793 /* Initialize the status as successful. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	794 status = NU_SUCCESS;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	795
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	796 /* Protect against simultaneous access to the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	797 TCT_System_Protect();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	798
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	799 /* Determine if an extra word of overhead needs to be added to the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	800 calculation. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	801 if (pipe -> pi_fixed_size)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	802
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	803 /* No overhead. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	804 i = 0;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	805 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	806 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	807
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	808 /* Variable messages have one additional word of overhead. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	809 i = sizeof(UNSIGNED);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	810
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	811 /* Calculate the number of pad bytes necessary to keep the pipe
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	812 write pointer on an UNSIGNED data element alignment. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	813 pad = (((size + sizeof(UNSIGNED) - 1)/sizeof(UNSIGNED)) *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	814 sizeof(UNSIGNED)) - size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	815
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	816 /* Insure that padding is included in the overhead. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	817 i = i + ((INT) pad);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	818
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	819 /* Make special check to see if a suspension needs to be
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	820 forced for a variable length message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	821 if ((pipe -> pi_suspension_list) && (pipe -> pi_messages))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	822 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	823
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	824 /* Pickup task control block pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	825 task = (TC_TCB *) TCT_Current_Thread();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	826
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	827 /* Now we know that there are other task(s) are suspended trying
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	828 to send a variable length message. Determine whether or not
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	829 a suspension should be forced. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	830 if ((pipe -> pi_fifo_suspend) \|\|
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	831 (suspend == NU_NO_SUSPEND) \|\|
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	832 ((pipe -> pi_suspension_list) -> pi_suspend_link.cs_priority <=
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	833 TCC_Task_Priority(task)))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	834
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	835 /* Bump the computed size to avoid placing the new variable
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	836 length message ahead of the suspended tasks. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	837 i = (INT) pipe -> pi_available;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	838 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	839 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	840
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	841 /* Determine if there is enough room in the pipe for the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	842 if (pipe -> pi_available < (size + i))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	843 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	844
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	845 /* pipe does not have room for the message. Determine if
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	846 suspension is required. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	847 if (suspend)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	848 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	849
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	850 /* Suspension is requested. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	851
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	852 /* Increment the number of tasks waiting. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	853 pipe -> pi_tasks_waiting++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	854
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	855 #ifdef INCLUDE_PROVIEW
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	856 _RTProf_DumpPipe(RT_PROF_BROADCAST_TO_PIPE,pipe,RT_PROF_WAIT);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	857 #endif /* INCLUDE_PROVIEW */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	858
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	859 /* Setup the suspend block and suspend the calling task. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	860 suspend_ptr = &suspend_block;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	861 suspend_ptr -> pi_pipe = pipe;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	862 suspend_ptr -> pi_suspend_link.cs_next = NU_NULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	863 suspend_ptr -> pi_suspend_link.cs_previous = NU_NULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	864 suspend_ptr -> pi_message_area = (BYTE_PTR) message;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	865 suspend_ptr -> pi_message_size = size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	866 task = (TC_TCB *) TCT_Current_Thread();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	867 suspend_ptr -> pi_suspended_task = task;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	868
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	869 /* Determine if priority or FIFO suspension is associated with the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	870 pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	871 if (pipe -> pi_fifo_suspend)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	872 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	873
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	874 /* FIFO suspension is required. Link the suspend block into
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	875 the list of suspended tasks on this pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	876 CSC_Place_On_List((CS_NODE **) &(pipe -> pi_suspension_list),
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	877 &(suspend_ptr -> pi_suspend_link));
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	878 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	879 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	880 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	881
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	882 /* Get the priority of the current thread so the suspend block
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	883 can be placed in the appropriate place. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	884 suspend_ptr -> pi_suspend_link.cs_priority =
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	885 TCC_Task_Priority(task);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	886
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	887 CSC_Priority_Place_On_List((CS_NODE **)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	888 &(pipe -> pi_suspension_list),
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	889 &(suspend_ptr -> pi_suspend_link));
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	890 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	891
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	892 /* Finally, suspend the calling task. Note that the suspension call
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	893 automatically clears the protection on the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	894 TCC_Suspend_Task((NU_TASK *) task, NU_PIPE_SUSPEND,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	895 PIC_Cleanup, suspend_ptr, suspend);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	896
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	897 /* Pickup the return status. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	898 status = suspend_ptr -> pi_return_status;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	899 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	900 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	901 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	902
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	903 /* Return a status of NU_PIPE_FULL because there is no
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	904 room in the pipe for the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	905 status = NU_PIPE_FULL;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	906
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	907
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	908 #ifdef INCLUDE_PROVIEW
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	909 _RTProf_DumpPipe(RT_PROF_BROADCAST_TO_PIPE,pipe,RT_PROF_FAIL);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	910 #endif /* INCLUDE_PROVIEW */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	911
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	912 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	913 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	914 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	915 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	916
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	917 #ifdef INCLUDE_PROVIEW
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	918 _RTProf_DumpPipe(RT_PROF_BROADCAST_TO_PIPE,pipe,RT_PROF_OK);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	919 #endif /* INCLUDE_PROVIEW */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	920
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	921 /* Determine if a task is waiting on an empty pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	922 if ((pipe -> pi_suspension_list) && (pipe -> pi_messages == 0))
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	923 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	924
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	925 /* Yes, one or more tasks are waiting for a message from this
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	926 pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	927 preempt = 0;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	928 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	929 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	930
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	931 /* Decrement the number of tasks waiting on pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	932 pipe -> pi_tasks_waiting--;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	933
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	934 /* Remove the first suspended block from the list. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	935 suspend_ptr = pipe -> pi_suspension_list;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	936 CSC_Remove_From_List((CS_NODE **)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	937 &(pipe -> pi_suspension_list),
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	938 &(suspend_ptr -> pi_suspend_link));
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	939
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	940 /* Setup the source and destination pointers. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	941 source = (BYTE_PTR) message;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	942 destination = suspend_ptr -> pi_message_area;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	943
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	944 /* Initialize the return status. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	945 suspend_ptr -> pi_return_status = NU_SUCCESS;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	946
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	947 /* Loop to actually copy the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	948 i = (INT) size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	949 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	950 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	951 (destination++) = (source);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	952 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	953 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	954 source++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	955 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	956
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	957 /* Return the size of the message copied. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	958 suspend_ptr -> pi_actual_size = size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	959
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	960 /* Wakeup the waiting task and check for preemption. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	961 preempt = preempt \|
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	962 TCC_Resume_Task((NU_TASK *) suspend_ptr -> pi_suspended_task,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	963 NU_PIPE_SUSPEND);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	964
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	965 /* Move the suspend pointer to the next node, which is now
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	966 at the head of the list. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	967 suspend_ptr = pipe -> pi_suspension_list;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	968 } while (suspend_ptr);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	969
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	970 /* Determine if preemption needs to take place. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	971 if (preempt)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	972
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	973 /* Transfer control to the system if the resumed task function
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	974 detects a preemption condition. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	975 TCT_Control_To_System();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	976 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	977 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	978 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	979
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	980 /* There is enough room in the pipe and no task is waiting. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	981
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	982 /* Setup the source pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	983 source = (BYTE_PTR) message;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	984 destination = pipe -> pi_write;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	985
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	986 /* Process according to the type of message supported. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	987 if (pipe -> pi_fixed_size)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	988 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	989
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	990 /* Fixed-size messages are supported by this pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	991
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	992 /* Loop to copy the message into the pipe area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	993 i = (INT) size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	994 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	995 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	996 (destination++) = (source);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	997 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	998 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	999 source++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1000 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1001 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1002 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1003 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1004
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1005 /* Variable-size messages are supported. Processing must
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1006 check for pipe wrap-around conditions. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1007
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1008 /* Place message size in first location. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1009 ((UNSIGNED ) destination) = size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1010 destination = destination + sizeof(UNSIGNED);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1011
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1012 /* Check for a wrap-around condition on the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1013 if (destination >= pipe -> pi_end)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1014
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1015 /* Wrap the write pointer back to the top of the pipe
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1016 area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1017 destination = pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1018
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1019 /* Decrement the number of bytes remaining for this
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1020 extra word of overhead. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1021 pipe -> pi_available = pipe -> pi_available -
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1022 sizeof(UNSIGNED);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1023
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1024 /* Calculate the number of bytes remaining from the write
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1025 pointer to the bottom of the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1026 copy_size = pipe -> pi_end - destination;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1027
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1028 /* Determine if the message needs to be wrapped around the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1029 edge of the pipe area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1030 if (copy_size >= size)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1031 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1032
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1033 /* Copy the whole message at once. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1034 i = (INT) size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1035 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1036 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1037 (destination++) = (source);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1038 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1039 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1040 source++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1041 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1042 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1043 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1044 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1045
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1046 /* Copy the first half of the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1047 i = (INT) copy_size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1048 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1049 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1050 (destination) = (source++);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1051 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1052 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1053 destination++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1054 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1055
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1056 /* Copy the second half of the message. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1057 destination = pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1058 i = (INT) (size - copy_size);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1059 do
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1060 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1061 (destination++) = (source);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1062 if ((--i) == 0)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1063 break;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1064 source++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1065 } while (1);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1066 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1067 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1068
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1069 /* Check again for wrap-around condition on the write pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1070 if (destination >= pipe -> pi_end)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1071
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1072 /* Move the write pointer to the top of the pipe area. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1073 destination = pipe -> pi_start;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1074
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1075 /* Determine if the pipe supports variable-length messages. If
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1076 so, pad bytes are needed to keep UNSIGNED alignment. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1077 if (pad)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1078 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1079
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1080 /* Variable-size message. Add pad bytes to the write
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1081 pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1082
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1083 /* Calculate the number of bytes remaining from the write
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1084 pointer to the bottom of the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1085 copy_size = pipe -> pi_end - destination;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1086
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1087 /* If there is not enough room at the bottom of the pipe, the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1088 pad bytes must be wrapped around to the top. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1089 if (copy_size <= pad)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1090
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1091 /* Move write pointer to the top of the pipe and make the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1092 necessary adjustment. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1093 destination = pipe -> pi_start + (pad - copy_size);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1094 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1095
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1096 /* There is enough room in the pipe to simply add the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1097 the pad bytes to the write pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1098 destination = destination + pad;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1099
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1100 /* Decrement the number of available bytes. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1101 pipe -> pi_available = pipe -> pi_available - pad;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1102 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1103
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1104 /* Update the actual write pointer. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1105 pipe -> pi_write = destination;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1106
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1107 /* Decrement the number of available bytes. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1108 pipe -> pi_available = pipe -> pi_available - size;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1109
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1110 /* Increment the number of messages in the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1111 pipe -> pi_messages++;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1112 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1113 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1114
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1115 /* Release protection against access to the pipe. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1116 TCT_Unprotect();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1117
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1118 /* Return to user mode */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1119 NU_USER_MODE();
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1120
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1121 /* Return the completion status. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1122 return(status);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1123 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1124
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1125
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1126
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1127
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1128
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1129
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1130

FreeCalypso > hg > fc-tourmaline

annotate src/nucleus/pis.c @ 303:f76436d19a7a default tip