Files
threadx/utility/rtos_compatibility_layers/posix/px_pth_attr_destroy.c
2021-07-28 07:24:02 +00:00

89 lines
5.4 KiB
C

/**************************************************************************/
/* */
/* 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 */
/* */
/* pthread_attr_destroy PORTABLE C */
/* 6.1.7 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function destroys a pthread attributes object and allows the */
/* system to reclaim any resources associated with that pthread */
/* attributes object.This doesn't have an effect on any threads created*/
/* using this pthread attributes object. */
/* */
/* */
/* INPUT */
/* */
/* attr Address of the pthread attributes */
/* object to be destroyed. */
/* */
/* OUTPUT */
/* */
/* 0 If successful */
/* Value In case of any error or the results */
/* of referencing the object after it */
/* has been destroyed. */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
/* */
/**************************************************************************/
INT pthread_attr_destroy(pthread_attr_t *attr)
{
/* Clear the flag and make this pthread_attr structure free */
/* First check the attribute object is already destroyed? */
if (attr->inuse == TX_FALSE)
return(EINVAL);
else
{
/* No then destroy the attributes object */
attr->inuse = TX_FALSE;
return(OK);
}
}