?? smse.c
字號:
#include "SWITCH.h"
#if NU_SEM_EN
/*************************************************************************/
/* */
/* Copyright (c) 1993-2001 Accelerated Technology, Inc. */
/* */
/* PROPRIETARY RIGHTS of Accelerated Technology are involved in the */
/* subject matter of this material. All manufacturing, reproduction, */
/* use, and sales rights pertaining to this subject matter are governed */
/* by the license agreement. The recipient of this software implicitly */
/* accepts the terms of the license. */
/* */
/*************************************************************************/
/*************************************************************************/
/* */
/* FILE NAME VERSION */
/* */
/* smse.c PLUS 1.13 */
/* */
/* 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. */
/* */
/* AUTHOR */
/* */
/* Accelerated Technology, Inc. */
/* */
/* 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 */
/* */
/*************************************************************************/
#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. */
/* */
/* AUTHOR */
/* */
/* Accelerated Technology, Inc. */
/* */
/* 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);
}
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