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/*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include <errno.h>
#include <rtems/system.h>
#include <rtems/score/chain.h>
#include <rtems/score/isr.h>
#include <rtems/score/thread.h>
#include <rtems/score/wkspace.h>
#include <rtems/posix/cancel.h>
#include <rtems/posix/pthread.h>
#include <rtems/posix/threadsup.h>
/*PAGE
*
* 18.2.1 Canceling Execution of a Thread, P1003.1c/Draft 10, p. 181
*/
int pthread_cancel(
pthread_t thread
)
{
Thread_Control *the_thread;
POSIX_API_Control *thread_support;
Objects_Locations location;
boolean cancel = FALSE;
/*
* Don't even think about deleting a resource from an ISR.
*/
if ( _ISR_Is_in_progress() )
return EPROTO;
the_thread = _POSIX_Threads_Get( thread, &location );
switch ( location ) {
case OBJECTS_LOCAL:
thread_support = the_thread->API_Extensions[ THREAD_API_POSIX ];
thread_support->cancelation_requested = 1;
if (thread_support->cancelability_state == PTHREAD_CANCEL_ENABLE &&
thread_support->cancelability_type == PTHREAD_CANCEL_ASYNCHRONOUS)
cancel = TRUE;
_Thread_Enable_dispatch();
if ( cancel )
_POSIX_Thread_Exit( the_thread, PTHREAD_CANCELED );
return 0;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
break;
}
return EINVAL;
}
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