threadx/utility/rtos_compatibility_layers/posix/px_mq_putback_queue.c

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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.                      */
/*                                                                        */
/**************************************************************************/


/**************************************************************************/
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/**                                                                       */ 
/** POSIX wrapper for THREADX                                             */ 
/**                                                                       */
/**                                                                       */
/**                                                                       */
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/* Include necessary system files.  */

#include "tx_api.h"    /* Threadx API */
#include "pthread.h"  /* Posix API */
#include "px_int.h"    /* Posix helper functions */

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    posix_putback_queue                                 PORTABLE C      */
/*                                                           6.1.7        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    William E. Lamie, Microsoft Corporation                             */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function "puts back" a ThreadX queue into the POSIX            */
/*    variable length message queue pool.                                 */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    qid                                   Queue ID                      */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    posix_memory_putback                  Free memory                   */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    POSIX internal Code                                                 */
/*                                                                        */
/*  RELEASE HISTORY                                                       */
/*                                                                        */
/*    DATE              NAME                      DESCRIPTION             */
/*                                                                        */
/*  06-02-2021     William E. Lamie         Initial Version 6.1.7         */
/*                                                                        */
/**************************************************************************/
VOID posix_putback_queue(TX_QUEUE * qid)
{

POSIX_MSG_QUEUE   * q_ptr;

    /* Convert TX_QUEUE into POSIX_QUEUE datatype.  */
    q_ptr = MAKE_POSIX_QUEUE(qid);

    /* Free the queue's memory.  */
    posix_memory_release(q_ptr->storage);

    /* This queue is no longer in use.  */
    q_ptr->in_use = TX_FALSE;
    return;
}