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/*
* $Id$
*/
#include <stdarg.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <semaphore.h>
#include <limits.h>
#include <rtems/system.h>
#include <rtems/score/object.h>
#include <rtems/posix/semaphore.h>
#include <rtems/posix/time.h>
#include <rtems/posix/seterr.h>
/*PAGE
*
* _POSIX_Semaphore_Wait_support
*/
int _POSIX_Semaphore_Wait_support(
sem_t *sem,
boolean blocking,
Watchdog_Interval timeout
)
{
register POSIX_Semaphore_Control *the_semaphore;
Objects_Locations location;
int code;
the_semaphore = _POSIX_Semaphore_Get( sem, &location );
switch ( location ) {
case OBJECTS_ERROR:
set_errno_and_return_minus_one( EINVAL );
case OBJECTS_REMOTE:
_Thread_Dispatch();
return POSIX_MP_NOT_IMPLEMENTED();
set_errno_and_return_minus_one( EINVAL );
case OBJECTS_LOCAL:
_CORE_semaphore_Seize(
&the_semaphore->Semaphore,
the_semaphore->Object.id,
blocking,
timeout
);
_Thread_Enable_dispatch();
code = _Thread_Executing->Wait.return_code;
switch (_Thread_Executing->Wait.return_code) {
case 1:
errno = EAGAIN;
code = -1;
break;
case 3:
errno = ETIMEDOUT;
code = -1;
break;
}
/*return _Thread_Executing->Wait.return_code;*/
return code;
}
return POSIX_BOTTOM_REACHED();
}
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