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[/] [or1k/] [trunk/] [rtems/] [c/] [src/] [exec/] [rtems/] [src/] [signalcatch.c] - Rev 158
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/* * Signal Manager * * * COPYRIGHT (c) 1989-1999. * 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.OARcorp.com/rtems/license.html. * * $Id: signalcatch.c,v 1.1.1.1 2001-07-10 09:43:51 chris Exp $ */ #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_catch * * This directive allows a thread to specify what action to take when * catching signals. * * Input parameters: * handler - address of asynchronous signal routine (asr) * ( NULL indicates asr is invalid ) * mode_set - mode value for asr * * Output parameters: * RTEMS_SUCCESSFUL - always succeeds */ rtems_status_code rtems_signal_catch( rtems_asr_entry asr_handler, rtems_mode mode_set ) { Thread_Control *executing; RTEMS_API_Control *api; ASR_Information *asr; /* XXX normalize mode */ executing = _Thread_Executing; api = executing->API_Extensions[ THREAD_API_RTEMS ]; asr = &api->Signal; _Thread_Disable_dispatch(); /* cannot reschedule while */ /* the thread is inconsistent */ if ( !_ASR_Is_null_handler( asr_handler ) ) { asr->mode_set = mode_set; asr->handler = asr_handler; } else _ASR_Initialize( asr ); _Thread_Enable_dispatch(); return RTEMS_SUCCESSFUL; }
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