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Diffstat (limited to 'cpukit/rtems/src/signalsend.c')
-rw-r--r-- | cpukit/rtems/src/signalsend.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/cpukit/rtems/src/signalsend.c b/cpukit/rtems/src/signalsend.c new file mode 100644 index 0000000000..031a18979e --- /dev/null +++ b/cpukit/rtems/src/signalsend.c @@ -0,0 +1,92 @@ +/* + * Signal Manager + * + * + * COPYRIGHT (c) 1989-2007. + * 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 <rtems/system.h> +#include <rtems/rtems/status.h> +#include <rtems/rtems/asr.h> +#include <rtems/score/isr.h> +#include <rtems/rtems/modes.h> +#include <rtems/rtems/signal.h> +#include <rtems/score/thread.h> +#include <rtems/rtems/tasks.h> + +/*PAGE + * + * rtems_signal_send + * + * This directive allows a thread to send signals to a thread. + * + * Input parameters: + * id - thread id + * signal_set - signal set + * + * Output parameters: + * RTEMS_SUCCESSFUL - if successful + * error code - if unsuccessful + */ + +rtems_status_code rtems_signal_send( + rtems_id id, + rtems_signal_set signal_set +) +{ + register Thread_Control *the_thread; + Objects_Locations location; + RTEMS_API_Control *api; + ASR_Information *asr; + + if ( !signal_set ) + return RTEMS_INVALID_NUMBER; + + the_thread = _Thread_Get( id, &location ); + switch ( location ) { + + case OBJECTS_LOCAL: + api = the_thread->API_Extensions[ THREAD_API_RTEMS ]; + asr = &api->Signal; + + if ( ! _ASR_Is_null_handler( asr->handler ) ) { + if ( asr->is_enabled ) { + _ASR_Post_signals( signal_set, &asr->signals_posted ); + + if ( _ISR_Is_in_progress() && _Thread_Is_executing( the_thread ) ) + _Thread_Dispatch_necessary = true; + } else { + _ASR_Post_signals( signal_set, &asr->signals_pending ); + } + _Thread_Enable_dispatch(); + return RTEMS_SUCCESSFUL; + } + _Thread_Enable_dispatch(); + return RTEMS_NOT_DEFINED; + +#if defined(RTEMS_MULTIPROCESSING) + case OBJECTS_REMOTE: + return _Signal_MP_Send_request_packet( + SIGNAL_MP_SEND_REQUEST, + id, + signal_set + ); +#endif + + case OBJECTS_ERROR: + break; + } + + return RTEMS_INVALID_ID; +} |