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/*

 *  NOTE:  The structure of the routines is identical to that of POSIX

 *         Message_queues to leave the option of having unnamed message

 *         queues at a future date.  They are currently not part of the

 *         POSIX standard but unnamed message_queues are.  This is also

 *         the reason for the apparently unnecessary tracking of

 *         the process_shared attribute.  [In addition to the fact that

 *         it would be trivial to add pshared to the mq_attr structure

 *         and have process private message queues.]

 *

 *         This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open

 *         time.

 *

 *  $Id: mqueuereceive.c,v 1.2 2001-09-27 11:59:17 chris Exp $

 */

#include <stdarg.h>

#include <pthread.h>

#include <limits.h>

#include <errno.h>

#include <fcntl.h>

#include <mqueue.h>

#include <rtems/system.h>

#include <rtems/score/watchdog.h>

#include <rtems/posix/seterr.h>

#include <rtems/posix/mqueue.h>

#include <rtems/posix/time.h>

/*PAGE

 *

 *  15.2.5 Receive a Message From a Message Queue, P1003.1b-1993, p. 279

 *

 *  NOTE: P1003.4b/D8, p. 45 adds mq_timedreceive().

 */

ssize_t mq_receive(

  mqd_t         mqdes,

  char         *msg_ptr,

  size_t        msg_len,

  unsigned int *msg_prio

)

{

  return _POSIX_Message_queue_Receive_support(

    mqdes,

    msg_ptr,

    msg_len,

    msg_prio,

    THREAD_QUEUE_WAIT_FOREVER

  );

}