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Release 6.1.7

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This commit is contained in:
Bo Chen
2021-06-02 06:45:05 +00:00
parent d759e6bb9e
commit f5056f4923
1269 changed files with 57325 additions and 55178 deletions
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112
utility/rtos_compatibility_layers/posix/px_sem_unlink.c Normal file
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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** POSIX wrapper for THREADX */
/** */
/** */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#include "tx_api.h" /* Threadx API */
#include "pthread.h" /* Posix API */
#include "px_int.h" /* Posix helper functions */
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* sem_unlink PORTABLE C */
/* 6.x */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This routine removes the string from the semaphore name table ,and */
/* marks the corresponding semaphore for destruction. */
/* */
/* INPUT */
/* */
/* name Semaphore name. */
/* */
/* OUTPUT */
/* */
/* OK If successful */
/* ERROR IF fails */
/* */
/* CALLS */
/* */
/* posix_find_sem checks the name of semaphore with the names */
/* of the already created semaphore. */
/* posix_sem_reset Resets the semaphore structure */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* xx-xx-xxxx William E. Lamie Initial Version 6.x */
/* */
/**************************************************************************/
INT sem_unlink(const CHAR * name)
{
struct POSIX_SEMAPHORE_STRUCT * sem;
ULONG len;
/* Checking for the invalid length. */
len = strlen(name);
if(len > SEM_NAME_MAX)
{
/* Return appropriate error. */
posix_errno=ENAMETOOLONG;
posix_set_pthread_errno(ENAMETOOLONG);
/* Return error. */
return(ERROR);
}
if(!(sem=posix_find_sem(name)))
{
/* Set error in global variable. */
posix_errno = ENOENT;
posix_set_pthread_errno(ENOENT);
/* Return Error. */
return(ERROR);
}
if(sem)
sem->unlink_flag =TX_TRUE;
/* Check for the count. */
if ((sem->count == 0) )
{
posix_sem_reset(sem );
sem = NULL;
}
return(OK);
}