92 lines
5.4 KiB
C
92 lines
5.4 KiB
C
/**************************************************************************/
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/* */
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/* Copyright (c) Microsoft Corporation. All rights reserved. */
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/* */
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/* This software is licensed under the Microsoft Software License */
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/* Terms for Microsoft Azure RTOS. Full text of the license can be */
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/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
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/* and in the root directory of this software. */
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/* */
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/**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** POSIX wrapper for THREADX */
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/** */
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/** */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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/* Include necessary system files. */
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#include "tx_api.h" /* Threadx API */
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#include "pthread.h" /* Posix API */
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#include "px_int.h" /* Posix helper functions */
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* pthread_mutexattr_destroy PORTABLE C */
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/* 6.x */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function shall destroy a mutex attributes object; the object */
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/* becomes,in effect,uninitialized.A destroyed attr attributes object */
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/* can be reinitialized using pthread_mutexattr_init(); */
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/* */
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/* */
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/* INPUT */
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/* */
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/* attr Address of the mutex attributes */
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/* object to be destroyed. */
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/* */
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/* OUTPUT */
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/* */
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/* 0 If successful */
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/* Value In case of any error or the results */
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/* of referencing the object after it */
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/* has been destroyed. */
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/* */
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/* CALLS */
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/* */
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/* None */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* xx-xx-xxxx William E. Lamie Initial Version 6.x */
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/* */
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/**************************************************************************/
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INT pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
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{
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/* Clear the flag and make this pthread_mutexattr structure free */
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/* First check the attribute object is already destroyed? */
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if (attr->in_use == TX_FALSE)
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{
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posix_errno = EINVAL;
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posix_set_pthread_errno(EINVAL);
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return(EINVAL);
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}
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else
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{
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/* No then destroy the attributes object */
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attr->in_use = TX_FALSE;
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return(OK);
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}
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}
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