FreeCalypso > hg > fc-tourmaline
view src/nucleus/pi_defs.h @ 19:aa868a5dcfd7
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author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 16 Oct 2020 07:38:28 +0000 |
parents | 4e78acac3d88 |
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/*************************************************************************/ /* */ /* Copyright Mentor Graphics Corporation 2002 */ /* All Rights Reserved. */ /* */ /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ /* SUBJECT TO LICENSE TERMS. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* pi_defs.h Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* PI - Pipe Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains data structure definitions and constants for */ /* the message Pipe component. */ /* */ /* DATA STRUCTURES */ /* */ /* PI_PCB Pipe control block */ /* PI_SUSPEND Pipe suspension block */ /* */ /* FUNCTIONS */ /* */ /* None */ /* */ /* DEPENDENCIES */ /* */ /* cs_defs.h Common service definitions */ /* tc_defs.h Thread Control definitions */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Moved include files outside of */ /* the file #ifndef to allow the */ /* use of actual data structures, */ /* removed protection structure, */ /* put padding into structure, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 03-24-1998 Released version 1.3. */ /* 03-26-1999 Released 1.11m (new release */ /* numbering scheme) */ /* 04-17-2002 Released version 1.13m */ /* 11-07-2002 Released version 1.14 */ /*************************************************************************/ #include "cs_defs.h" /* Common service constants */ #include "tc_defs.h" /* Thread control constants */ /* Check to see if the file has been included already. */ #ifndef PI_DEFS #define PI_DEFS /* Define constants local to this component. */ #define PI_PIPE_ID 0x50495045UL /* Define the Pipe Control Block data type. */ typedef struct PI_PCB_STRUCT { CS_NODE pi_created; /* Node for linking to */ /* created pipe list */ UNSIGNED pi_id; /* Internal PCB ID */ CHAR pi_name[NU_MAX_NAME]; /* Pipe name */ BOOLEAN pi_fixed_size; /* Fixed-size messages? */ BOOLEAN pi_fifo_suspend; /* Suspension type flag */ #if PAD_2 DATA_ELEMENT pi_padding[PAD_2]; #endif UNSIGNED pi_pipe_size; /* Total size of pipe */ UNSIGNED pi_messages; /* Messages in pipe */ UNSIGNED pi_message_size; /* Size of each message */ UNSIGNED pi_available; /* Available bytes */ BYTE_PTR pi_start; /* Start of pipe area */ BYTE_PTR pi_end; /* End of pipe area + 1 */ BYTE_PTR pi_read; /* Read pointer */ BYTE_PTR pi_write; /* Write pointer */ UNSIGNED pi_tasks_waiting; /* Number of waiting tasks*/ struct PI_SUSPEND_STRUCT *pi_urgent_list; /* Urgent message suspend */ struct PI_SUSPEND_STRUCT *pi_suspension_list; /* Suspension list */ } PI_PCB; /* Define the Pipe suspension structure. This structure is allocated off of the caller's stack. */ typedef struct PI_SUSPEND_STRUCT { CS_NODE pi_suspend_link; /* Link to suspend blocks */ PI_PCB *pi_pipe; /* Pointer to the pipe */ TC_TCB *pi_suspended_task; /* Task suspended */ BYTE_PTR pi_message_area; /* Pointer to message area*/ UNSIGNED pi_message_size; /* Message size requested */ UNSIGNED pi_actual_size; /* Actual size of message */ STATUS pi_return_status; /* Return status */ } PI_SUSPEND; #endif