summaryrefslogtreecommitdiffstats
path: root/c/src/exec/rtems/inline/asr.inl
diff options
context:
space:
mode:
Diffstat (limited to 'c/src/exec/rtems/inline/asr.inl')
-rw-r--r--c/src/exec/rtems/inline/asr.inl128
1 files changed, 128 insertions, 0 deletions
diff --git a/c/src/exec/rtems/inline/asr.inl b/c/src/exec/rtems/inline/asr.inl
new file mode 100644
index 0000000000..743c7ed5f7
--- /dev/null
+++ b/c/src/exec/rtems/inline/asr.inl
@@ -0,0 +1,128 @@
+/* inline/asr.inl
+ *
+ * This include file contains the implemenation of all routines
+ * associated with the asynchronous signal handler which are inlined.
+ *
+ * COPYRIGHT (c) 1989-1997.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may in
+ * the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#ifndef __INLINE_ASR_inl
+#define __INLINE_ASR_inl
+
+#include <rtems/score/isr.h>
+
+/*PAGE
+ *
+ * _ASR_Initialize
+ *
+ * DESCRIPTION:
+ *
+ * This routine initializes the given RTEMS_ASR information record.
+ */
+
+RTEMS_INLINE_ROUTINE void _ASR_Initialize (
+ ASR_Information *information
+)
+{
+ information->is_enabled = TRUE;
+ information->handler = NULL;
+ information->mode_set = RTEMS_DEFAULT_MODES;
+ information->signals_posted = 0;
+ information->signals_pending = 0;
+ information->nest_level = 0;
+}
+
+/*PAGE
+ *
+ * _ASR_Swap_signals
+ *
+ * DESCRIPTION:
+ *
+ * This routine atomically swaps the pending and posted signal
+ * sets. This is done when the thread alters its mode in such a
+ * way that the RTEMS_ASR disable/enable flag changes.
+ */
+
+RTEMS_INLINE_ROUTINE void _ASR_Swap_signals (
+ ASR_Information *information
+)
+{
+ rtems_signal_set _signals;
+ ISR_Level _level;
+
+ _ISR_Disable( _level );
+ _signals = information->signals_pending;
+ information->signals_pending = information->signals_posted;
+ information->signals_posted = _signals;
+ _ISR_Enable( _level );
+}
+
+/*PAGE
+ *
+ * _ASR_Is_null_handler
+ *
+ * DESCRIPTION:
+ *
+ * This function returns TRUE if the given asr_handler is NULL and
+ * FALSE otherwise.
+ */
+
+RTEMS_INLINE_ROUTINE boolean _ASR_Is_null_handler (
+ rtems_asr_entry asr_handler
+)
+{
+ return asr_handler == NULL;
+}
+
+/*PAGE
+ *
+ * _ASR_Are_signals_pending
+ *
+ * DESCRIPTION:
+ *
+ * This function returns TRUE if there are signals pending in the
+ * given RTEMS_ASR information record and FALSE otherwise.
+ */
+
+RTEMS_INLINE_ROUTINE boolean _ASR_Are_signals_pending (
+ ASR_Information *information
+)
+{
+ return information->signals_posted != 0;
+}
+
+/*PAGE
+ *
+ * _ASR_Post_signals
+ *
+ * DESCRIPTION:
+ *
+ * This routine posts the given signals into the signal_set
+ * passed in. The result is returned to the user in signal_set.
+ *
+ * NOTE: This must be implemented as a macro.
+ */
+
+RTEMS_INLINE_ROUTINE void _ASR_Post_signals(
+ rtems_signal_set signals,
+ rtems_signal_set *signal_set
+)
+{
+ ISR_Level _level;
+
+ _ISR_Disable( _level );
+ *signal_set |= signals;
+ _ISR_Enable( _level );
+}
+
+
+#endif
+/* end of include file */