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authorJoel Sherrill <joel.sherrill@OARcorp.com>1999-11-02 17:36:20 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1999-11-02 17:36:20 +0000
commitee979cdd95acb1a2bfa8b02f67d5386d3c8af5e3 (patch)
tree56f962a98a305c62c05ddace93be94aa17a3319c /c/src/exec/posix/src/psignal.c
parentSplit mutex.c into multiple files. (diff)
downloadrtems-ee979cdd95acb1a2bfa8b02f67d5386d3c8af5e3.tar.bz2
Split some more stuff out of psignal.c.
Diffstat (limited to 'c/src/exec/posix/src/psignal.c')
-rw-r--r--c/src/exec/posix/src/psignal.c236
1 files changed, 1 insertions, 235 deletions
diff --git a/c/src/exec/posix/src/psignal.c b/c/src/exec/posix/src/psignal.c
index 0d7d3a2e8c..28e1ee8319 100644
--- a/c/src/exec/posix/src/psignal.c
+++ b/c/src/exec/posix/src/psignal.c
@@ -98,243 +98,9 @@ Chain_Control _POSIX_signals_Siginfo[ SIG_ARRAY_MAX ];
(STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL)) == \
(STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL))
-/*PAGE
- *
- * _POSIX_signals_Unblock_thread
- */
-
-/* XXX this routine could probably be cleaned up */
-boolean _POSIX_signals_Unblock_thread(
- Thread_Control *the_thread,
- int signo,
- siginfo_t *info
-)
-{
- POSIX_API_Control *api;
- sigset_t mask;
- siginfo_t *the_info = NULL;
-
- api = the_thread->API_Extensions[ THREAD_API_POSIX ];
-
- mask = signo_to_mask( signo );
-
- /*
- * Is the thread is specifically waiting for a signal?
- */
-
- if ( _States_Is_interruptible_signal( the_thread->current_state ) ) {
-
- if ( (the_thread->Wait.option & mask) || (~api->signals_blocked & mask) ) {
- the_thread->Wait.return_code = EINTR;
-
- the_info = (siginfo_t *) the_thread->Wait.return_argument;
-
- if ( !info ) {
- the_info->si_signo = signo;
- the_info->si_code = SI_USER;
- the_info->si_value.sival_int = 0;
- } else {
- *the_info = *info;
- }
-
- _Thread_queue_Extract_with_proxy( the_thread );
- return TRUE;
- }
-
- /*
- * This should only be reached via pthread_kill().
- */
-
- return FALSE;
- }
-
- if ( ~api->signals_blocked & mask ) {
- the_thread->do_post_task_switch_extension = TRUE;
-
- if ( the_thread->current_state & STATES_INTERRUPTIBLE_BY_SIGNAL ) {
- the_thread->Wait.return_code = EINTR;
- if ( _States_Is_waiting_on_thread_queue(the_thread->current_state) )
- _Thread_queue_Extract_with_proxy( the_thread );
- else if ( _States_Is_delaying(the_thread->current_state)){
- if ( _Watchdog_Is_active( &the_thread->Timer ) )
- (void) _Watchdog_Remove( &the_thread->Timer );
- _Thread_Unblock( the_thread );
- }
- }
- }
- return FALSE;
-
-}
-
-/*PAGE
- *
- * _POSIX_signals_Set_process_signals
- */
-
-void _POSIX_signals_Set_process_signals(
- sigset_t mask
-)
-{
- ISR_Level level;
-
- _ISR_Disable( level );
- if ( !_POSIX_signals_Pending )
- _Thread_Do_post_task_switch_extension++;
- _POSIX_signals_Pending |= mask;
- _ISR_Enable( level );
-}
-
-/*PAGE
- *
- * _POSIX_signals_Clear_process_signals
- */
-
-void _POSIX_signals_Clear_process_signals(
- sigset_t mask
-)
-{
- ISR_Level level;
-
- _ISR_Disable( level );
- _POSIX_signals_Pending &= ~mask;
- if ( !_POSIX_signals_Pending )
- _Thread_Do_post_task_switch_extension--;
- _ISR_Enable( level );
-}
-
-/*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;
-}
-
-
-/*PAGE
- *
- * _POSIX_signals_Check_signal
- */
-
-boolean _POSIX_signals_Check_signal(
- POSIX_API_Control *api,
- int signo,
- boolean is_global
-)
-{
- siginfo_t siginfo_struct;
- sigset_t saved_signals_blocked;
-
- if ( ! _POSIX_signals_Clear_signals( api, signo, &siginfo_struct,
- is_global, TRUE ) )
- return FALSE;
-
- /*
- * Since we made a union of these, only one test is necessary but this is
- * safer.
- */
-
- assert( _POSIX_signals_Vectors[ signo ].sa_handler ||
- _POSIX_signals_Vectors[ signo ].sa_sigaction );
-
- /*
- * Just to prevent sending a signal which is currently being ignored.
- */
-
- if ( _POSIX_signals_Vectors[ signo ].sa_handler == SIG_IGN )
- return FALSE;
-
- /*
- * Block the signals requested in sa_mask
- */
-
- saved_signals_blocked = api->signals_blocked;
- api->signals_blocked |= _POSIX_signals_Vectors[ signo ].sa_mask;
-
- /* Here, the signal handler function executes */
-
- switch ( _POSIX_signals_Vectors[ signo ].sa_flags ) {
- case SA_SIGINFO:
/*
- *
- * assert( is_global );
+ * _POSIX_signals_Post_switch_extension
*/
- (*_POSIX_signals_Vectors[ signo ].sa_sigaction)(
- signo,
- &siginfo_struct,
- NULL /* context is undefined per 1003.1b-1993, p. 66 */
- );
- break;
- default:
- (*_POSIX_signals_Vectors[ signo ].sa_handler)( signo );
- break;
- }
-
- /*
- * Restore the previous set of blocked signals
- */
-
- api->signals_blocked = saved_signals_blocked;
-
- return TRUE;
-}
void _POSIX_signals_Post_switch_extension(
Thread_Control *the_thread