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/*
* 3.3.10 Send a Signal to a Thread, P1003.1c/D10, p. 43
*
* COPYRIGHT (c) 1989-1998.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <pthread.h>
#include <errno.h>
#include <rtems/system.h>
#include <rtems/posix/pthread.h>
#include <rtems/posix/psignal.h>
#include <rtems/score/isr.h>
#include <rtems/posix/seterr.h>
int pthread_kill(
pthread_t thread,
int sig
)
{
POSIX_API_Control *api;
Thread_Control *the_thread;
Objects_Locations location;
if ( sig && !is_valid_signo(sig) )
set_errno_and_return_minus_one( EINVAL );
/* commented out when posix timers added
if ( _POSIX_signals_Vectors[ sig ].sa_flags == SA_SIGINFO )
set_errno_and_return_minus_one( ENOSYS );
*/
the_thread = _POSIX_Threads_Get( thread, &location );
switch ( location ) {
case OBJECTS_ERROR:
case OBJECTS_REMOTE:
set_errno_and_return_minus_one( ESRCH );
case OBJECTS_LOCAL:
/*
* If sig == 0 then just validate arguments
*/
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
if ( sig ) {
if ( _POSIX_signals_Vectors[ sig ].sa_handler == SIG_IGN ) {
_Thread_Enable_dispatch();
return 0;
}
/* XXX critical section */
api->signals_pending |= signo_to_mask( sig );
(void) _POSIX_signals_Unblock_thread( the_thread, sig, NULL );
the_thread->do_post_task_switch_extension = TRUE;
if ( _ISR_Is_in_progress() && _Thread_Is_executing( the_thread ) )
_ISR_Signals_to_thread_executing = TRUE;
}
_Thread_Enable_dispatch();
return 0;
}
return POSIX_BOTTOM_REACHED();
}
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