FreeCalypso > hg > fc-selenite
diff src/nucleus/pise.c @ 7:0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 15 Jul 2018 20:57:33 +0000 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/nucleus/pise.c Sun Jul 15 20:57:33 2018 +0000 @@ -0,0 +1,351 @@ +/*************************************************************************/ +/* */ +/* 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 */ +/* */ +/* pise.c Nucleus PLUS 1.14 */ +/* */ +/* COMPONENT */ +/* */ +/* PI - Pipe Management */ +/* */ +/* DESCRIPTION */ +/* */ +/* This file contains error checking routines for supplemental */ +/* functions of the Pipe component. This permits easy removal of */ +/* error checking logic when it is not needed. */ +/* */ +/* DATA STRUCTURES */ +/* */ +/* None */ +/* */ +/* FUNCTIONS */ +/* */ +/* PISE_Reset_Pipe Reset a pipe */ +/* PISE_Send_To_Front_Of_Pipe Send message to pipe's front */ +/* PISE_Broadcast_To_Pipe Broadcast message to pipe */ +/* */ +/* DEPENDENCIES */ +/* */ +/* cs_extr.h Common Service functions */ +/* tc_extr.h Thread Control functions */ +/* pi_extr.h Pipe functions */ +/* */ +/* HISTORY */ +/* */ +/* DATE REMARKS */ +/* */ +/* 03-01-1994 Created initial version 1.1 from */ +/* routines originally in core */ +/* error checking file */ +/* */ +/* 03-18-1994 Verified version 1.1 */ +/* 04-17-1996 updated to version 1.2 */ +/* 03-24-1998 Released version 1.3. */ +/* 04-17-2002 Released version 1.13m */ +/* 11-07-2002 Released version 1.14 */ +/*************************************************************************/ +#define NU_SOURCE_FILE + + +#include "cs_extr.h" /* Common service functions */ +#include "tc_extr.h" /* Thread control functions */ +#include "pi_extr.h" /* Pipe functions */ + + +/*************************************************************************/ +/* */ +/* FUNCTION */ +/* */ +/* PISE_Reset_Pipe */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function performs error checking on the parameter supplied */ +/* to the pipe reset function. */ +/* */ +/* CALLED BY */ +/* */ +/* Application */ +/* */ +/* CALLS */ +/* */ +/* PIS_Reset_Pipe Actual reset pipe function */ +/* */ +/* INPUTS */ +/* */ +/* pipe_ptr Pipe control block pointer */ +/* */ +/* OUTPUTS */ +/* */ +/* NU_INVALID_PIPE Invalid pipe pointer */ +/* */ +/* HISTORY */ +/* */ +/* DATE REMARKS */ +/* */ +/* 03-01-1993 Created initial version 1.0 */ +/* 04-19-1993 Verified version 1.0 */ +/* 03-01-1994 Modified function interface, */ +/* resulting in version 1.1 */ +/* */ +/* 03-18-1994 Verified version 1.1 */ +/* */ +/*************************************************************************/ +STATUS PISE_Reset_Pipe(NU_PIPE *pipe_ptr) +{ + +PI_PCB *pipe; +STATUS status; + + + /* Move input pipe pointer into internal pointer. */ + pipe = (PI_PCB *) pipe_ptr; + + /* Determine if there is an error with the pipe pointer. */ + if (pipe == NU_NULL) + + /* Indicate that the pipe pointer is invalid. */ + status = NU_INVALID_PIPE; + + else if (pipe -> pi_id != PI_PIPE_ID) + + /* Indicate that the pipe pointer is invalid. */ + status = NU_INVALID_PIPE; + + else + + /* All the parameters are okay, call the actual function to reset + a pipe. */ + status = PIS_Reset_Pipe(pipe_ptr); + + /* Return completion status. */ + return(status); +} + + +/*************************************************************************/ +/* */ +/* FUNCTION */ +/* */ +/* PISE_Send_To_Front_Of_Pipe */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function performs error checking on the parameters supplied */ +/* to the send message to front of pipe function. */ +/* */ +/* CALLED BY */ +/* */ +/* Application */ +/* */ +/* CALLS */ +/* */ +/* PIS_Send_To_Front_Of_Pipe Actual send to front of pipe */ +/* function */ +/* TCCE_Suspend_Error Check suspend validity */ +/* */ +/* INPUTS */ +/* */ +/* pipe_ptr Pipe control block pointer */ +/* message Pointer to message to send */ +/* size Size of message to send */ +/* suspend Suspension option if full */ +/* */ +/* OUTPUTS */ +/* */ +/* NU_INVALID_PIPE Invalid pipe pointer */ +/* NU_INVALID_POINTER Invalid message pointer */ +/* NU_INVALID_SIZE Invalid message size */ +/* NU_INVALID_SUSPEND Invalid suspend request */ +/* */ +/* HISTORY */ +/* */ +/* DATE REMARKS */ +/* */ +/* 03-01-1993 Created initial version 1.0 */ +/* 04-19-1993 Verified version 1.0 */ +/* 03-01-1994 Modified function interface, */ +/* resulting in version 1.1 */ +/* */ +/* 03-18-1994 Verified version 1.1 */ +/* */ +/*************************************************************************/ +STATUS PISE_Send_To_Front_Of_Pipe(NU_PIPE *pipe_ptr, VOID *message, + UNSIGNED size, UNSIGNED suspend) +{ + +PI_PCB *pipe; +STATUS status; + + + /* Move input pipe pointer into internal pointer. */ + pipe = (PI_PCB *) pipe_ptr; + + /* Determine if there is an error with the pipe pointer. */ + if (pipe == NU_NULL) + + /* Indicate that the pipe pointer is invalid. */ + status = NU_INVALID_PIPE; + + else if (pipe -> pi_id != PI_PIPE_ID) + + /* Indicate that the pipe pointer is invalid. */ + status = NU_INVALID_PIPE; + + else if (message == NU_NULL) + + /* Indicate that the pointer to the message is invalid. */ + status = NU_INVALID_POINTER; + + else if (size == 0) + + /* Indicate that the message size is invalid */ + status = NU_INVALID_SIZE; + + else if ((pipe -> pi_fixed_size) && (size != pipe -> pi_message_size)) + + /* Indicate that the message size is invalid. */ + status = NU_INVALID_SIZE; + + else if ((!pipe -> pi_fixed_size) && (size > pipe -> pi_message_size)) + + /* Indicate that the message size is invalid. */ + status = NU_INVALID_SIZE; + + else if ((suspend) && (TCCE_Suspend_Error())) + + /* Indicate that suspension is only valid from a non-task thread. */ + status = NU_INVALID_SUSPEND; + + else + + /* All the parameters are okay, call the actual function to send + a message to a pipe. */ + status = PIS_Send_To_Front_Of_Pipe(pipe_ptr, message, size, suspend); + + /* Return completion status. */ + return(status); +} + + +/*************************************************************************/ +/* */ +/* FUNCTION */ +/* */ +/* PISE_Broadcast_To_Pipe */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function performs error checking on the parameters supplied */ +/* to the broadcast message to pipe function. */ +/* */ +/* CALLED BY */ +/* */ +/* Application */ +/* */ +/* CALLS */ +/* */ +/* PIS_Broadcast_To_Pipe Actual broadcast message to */ +/* pipe function */ +/* TCCE_Suspend_Error Check suspend validity */ +/* */ +/* INPUTS */ +/* */ +/* pipe_ptr Pipe control block pointer */ +/* message Pointer to message to send */ +/* size Size of message to send */ +/* suspend Suspension option if full */ +/* */ +/* OUTPUTS */ +/* */ +/* NU_INVALID_PIPE Invalid pipe pointer */ +/* NU_INVALID_POINTER Invalid message pointer */ +/* NU_INVALID_SIZE Invalid message size */ +/* NU_INVALID_SUSPEND Invalid suspend request */ +/* */ +/* HISTORY */ +/* */ +/* DATE REMARKS */ +/* */ +/* 03-01-1993 Created initial version 1.0 */ +/* 04-19-1993 Verified version 1.0 */ +/* 03-01-1994 Modified function interface, */ +/* resulting in version 1.1 */ +/* */ +/* 03-18-1994 Verified version 1.1 */ +/* */ +/*************************************************************************/ +STATUS PISE_Broadcast_To_Pipe(NU_PIPE *pipe_ptr, VOID *message, + UNSIGNED size, UNSIGNED suspend) +{ + +PI_PCB *pipe; +STATUS status; + + + /* Move input pipe pointer into internal pointer. */ + pipe = (PI_PCB *) pipe_ptr; + + /* Determine if there is an error with the pipe pointer. */ + if (pipe == NU_NULL) + + /* Indicate that the pipe pointer is invalid. */ + status = NU_INVALID_PIPE; + + else if (pipe -> pi_id != PI_PIPE_ID) + + /* Indicate that the pipe pointer is invalid. */ + status = NU_INVALID_PIPE; + + else if (message == NU_NULL) + + /* Indicate that the pointer to the message is invalid. */ + status = NU_INVALID_POINTER; + + else if (size == 0) + + /* Indicate that the message size is invalid */ + status = NU_INVALID_SIZE; + + else if ((pipe -> pi_fixed_size) && (size != pipe -> pi_message_size)) + + /* Indicate that the message size is invalid. */ + status = NU_INVALID_SIZE; + + else if ((!pipe -> pi_fixed_size) && (size > pipe -> pi_message_size)) + + /* Indicate that the message size is invalid. */ + status = NU_INVALID_SIZE; + + else if ((suspend) && (TCCE_Suspend_Error())) + + /* Indicate that suspension is only valid from a non-task thread. */ + status = NU_INVALID_SUSPEND; + + else + + /* All the parameters are okay, call the actual function to broadcast + a message to a pipe. */ + status = PIS_Broadcast_To_Pipe(pipe_ptr, message, size, suspend); + + /* Return completion status. */ + return(status); +} + + + + + + +