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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [src/] [condsignalsupp.c] - Blame information for rev 173

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1 30 unneback
/*
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 *  $Id: condsignalsupp.c,v 1.2 2001-09-27 11:59:17 chris Exp $
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 */
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#include <pthread.h>
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#include <errno.h>
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#include <rtems/system.h>
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#include <rtems/score/object.h>
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#include <rtems/score/states.h>
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#include <rtems/score/watchdog.h>
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#include <rtems/posix/cond.h>
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#include <rtems/posix/time.h>
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#include <rtems/posix/mutex.h>
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/*PAGE
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 *
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 *  _POSIX_Condition_variables_Signal_support
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 *
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 *  A support routine which implements guts of the broadcast and single task
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 *  wake up version of the "signal" operation.
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 */
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int _POSIX_Condition_variables_Signal_support(
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  pthread_cond_t            *cond,
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  boolean                    is_broadcast
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)
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{
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  register POSIX_Condition_variables_Control *the_cond;
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  Objects_Locations                           location;
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  Thread_Control                             *the_thread;
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  the_cond = _POSIX_Condition_variables_Get( cond, &location );
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  switch ( location ) {
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    case OBJECTS_REMOTE:
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#if defined(RTEMS_MULTIPROCESSING)
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      _Thread_Dispatch();
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      return POSIX_MP_NOT_IMPLEMENTED();
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      return EINVAL;
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#endif
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    case OBJECTS_ERROR:
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      return EINVAL;
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    case OBJECTS_LOCAL:
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      do {
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        the_thread = _Thread_queue_Dequeue( &the_cond->Wait_queue );
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        if ( !the_thread )
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          the_cond->Mutex = POSIX_CONDITION_VARIABLES_NO_MUTEX;
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      } while ( is_broadcast && the_thread );
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      _Thread_Enable_dispatch();
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      return 0;
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  }
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  return POSIX_BOTTOM_REACHED();
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}

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