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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [src/] [mqueuesendsupp.c] - Rev 173
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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: mqueuesendsupp.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> #ifndef MQ_PRIO_MAX #define MQ_PRIO_MAX 32 #endif /*PAGE * * _POSIX_Message_queue_Send_support */ int _POSIX_Message_queue_Send_support( mqd_t mqdes, const char *msg_ptr, unsigned32 msg_len, unsigned32 msg_prio, Watchdog_Interval timeout ) { register POSIX_Message_queue_Control *the_mq; Objects_Locations location; /* * Validate the priority. * XXX - Do not validate msg_prio is not less than 0. */ if ( msg_prio > MQ_PRIO_MAX ) set_errno_and_return_minus_one( EINVAL ); the_mq = _POSIX_Message_queue_Get( mqdes, &location ); switch ( location ) { case OBJECTS_ERROR: set_errno_and_return_minus_one( EBADF ); case OBJECTS_REMOTE: _Thread_Dispatch(); return POSIX_MP_NOT_IMPLEMENTED(); set_errno_and_return_minus_one( EINVAL ); case OBJECTS_LOCAL: if ( (the_mq->oflag & O_ACCMODE) == O_RDONLY ) { _Thread_Enable_dispatch(); set_errno_and_return_minus_one( EBADF ); } _CORE_message_queue_Submit( &the_mq->Message_queue, (void *) msg_ptr, msg_len, mqdes, /* mqd_t is an object id */ #if defined(RTEMS_MULTIPROCESSING) NULL, /* XXX _POSIX_Message_queue_Core_message_queue_mp_support*/ #else NULL, #endif _POSIX_Message_queue_Priority_to_core( msg_prio ), (the_mq->oflag & O_NONBLOCK) ? FALSE : TRUE, timeout /* no timeout */ ); _Thread_Enable_dispatch(); if ( !_Thread_Executing->Wait.return_code ) return 0; set_errno_and_return_minus_one( _POSIX_Message_queue_Translate_core_message_queue_return_code( _Thread_Executing->Wait.return_code ) ); } return POSIX_BOTTOM_REACHED(); }