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/*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#include <errno.h>
#include <pthread.h>
#include <signal.h>
#include <rtems/system.h>
#include <rtems/score/isr.h>
#include <rtems/score/thread.h>
#include <rtems/score/tqdata.h>
#include <rtems/score/wkspace.h>
#include <rtems/seterr.h>
#include <rtems/posix/threadsup.h>
#include <rtems/posix/psignal.h>
#include <rtems/posix/pthread.h>
#include <rtems/posix/time.h>
#include <stdio.h>
/*PAGE
*
* _POSIX_signals_Clear_signals
*/
boolean _POSIX_signals_Clear_signals(
POSIX_API_Control *api,
int signo,
siginfo_t *info,
boolean is_global,
boolean check_blocked
)
{
sigset_t mask;
sigset_t signals_blocked;
ISR_Level level;
boolean do_callout;
POSIX_signals_Siginfo_node *psiginfo;
mask = signo_to_mask( signo );
do_callout = FALSE;
/* set blocked signals based on if checking for them, SIGNAL_ALL_MASK
* insures that no signals are blocked and all are checked.
*/
if ( check_blocked )
signals_blocked = ~api->signals_blocked;
else
signals_blocked = SIGNAL_ALL_MASK;
/* XXX this is not right for siginfo type signals yet */
/* XXX since they can't be cleared the same way */
_ISR_Disable( level );
if ( is_global ) {
if ( mask & (_POSIX_signals_Pending & signals_blocked) ) {
if ( _POSIX_signals_Vectors[ signo ].sa_flags == SA_SIGINFO ) {
psiginfo = (POSIX_signals_Siginfo_node *)
_Chain_Get_unprotected( &_POSIX_signals_Siginfo[ signo ] );
if ( _Chain_Is_empty( &_POSIX_signals_Siginfo[ signo ] ) )
_POSIX_signals_Clear_process_signals( mask );
if ( psiginfo ) {
*info = psiginfo->Info;
_Chain_Append_unprotected(
&_POSIX_signals_Inactive_siginfo,
&psiginfo->Node
);
} else
do_callout = FALSE;
} else
_POSIX_signals_Clear_process_signals( mask );
do_callout = TRUE;
}
} else {
if ( mask & (api->signals_pending & signals_blocked) ) {
api->signals_pending &= ~mask;
do_callout = TRUE;
}
}
_ISR_Enable( level );
return do_callout;
}
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