/**************************************************************************/
/*                                                                        */
/*       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.x          */
/*  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             */
/*                                                                        */
/*  xx-xx-xxxx     William E. Lamie         Initial Version 6.x           */
/*                                                                        */
/**************************************************************************/
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);
    }
}