FreeCalypso > hg > freecalypso-sw
diff nuc-fw/nucleus/smse.c @ 79:947b1f473960
beginning of nuc-fw
| author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
|---|---|
| date | Sun, 11 Aug 2013 07:17:25 +0000 |
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| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nuc-fw/nucleus/smse.c Sun Aug 11 07:17:25 2013 +0000 @@ -0,0 +1,134 @@ +/*************************************************************************/ +/* */ +/* 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 */ +/* */ +/* smse.c Nucleus PLUS 1.14 */ +/* */ +/* COMPONENT */ +/* */ +/* SM - Semaphore Management */ +/* */ +/* DESCRIPTION */ +/* */ +/* This file contains the error checking routines for the */ +/* supplemental functions of the Semaphore component. This permits */ +/* easy removal of error checking logic when it is not needed. */ +/* */ +/* DATA STRUCTURES */ +/* */ +/* None */ +/* */ +/* FUNCTIONS */ +/* */ +/* SMSE_Reset_Semaphore Reset a semaphore */ +/* */ +/* DEPENDENCIES */ +/* */ +/* cs_extr.h Common Service functions */ +/* tc_extr.h Thread Control functions */ +/* sm_extr.h Semaphore 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 "sm_extr.h" /* Semaphore functions */ + + + +/*************************************************************************/ +/* */ +/* FUNCTION */ +/* */ +/* SMSE_Reset_Semaphore */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function performs error checking on the parameters supplied */ +/* to the reset semaphore function. */ +/* */ +/* CALLED BY */ +/* */ +/* Application */ +/* */ +/* CALLS */ +/* */ +/* SMS_Reset_Semaphore Actual reset semaphore func. */ +/* */ +/* INPUTS */ +/* */ +/* semaphore_ptr Semaphore control block ptr */ +/* initial_count Initial count to reset the */ +/* semaphore to */ +/* */ +/* OUTPUTS */ +/* */ +/* NU_INVALID_SEMAPHORE Invalid semaphore 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 SMSE_Reset_Semaphore(NU_SEMAPHORE *semaphore_ptr, + UNSIGNED initial_count) +{ + +SM_SCB *semaphore; /* Semaphore control blk ptr */ +STATUS status; /* Completion status */ + + + /* Move input semaphore pointer into internal pointer. */ + semaphore = (SM_SCB *) semaphore_ptr; + + /* Determine if the semaphore pointer is valid. */ + if ((semaphore) && (semaphore -> sm_id == SM_SEMAPHORE_ID)) + + /* Semaphore pointer is valid, call function to reset it. */ + status = SMS_Reset_Semaphore(semaphore_ptr, initial_count); + + else + + /* Semaphore pointer is invalid, indicate in completion status. */ + status = NU_INVALID_SEMAPHORE; + + /* Return completion status. */ + return(status); +} + + + +