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+/**
+ * @file rtems/rtems/asr.inl
+ *
+ * This include file contains the implemenation of all routines
+ * associated with the asynchronous signal handler which are inlined.
+ */
+
+/* COPYRIGHT (c) 1989-2008.
+ * 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.
+ *
+ * $Id$
+ */
+
+#ifndef _RTEMS_RTEMS_ASR_H
+# error "Never use <rtems/rtems/asr.inl> directly; include <rtems/rtems/asr.h> instead."
+#endif
+
+#ifndef _RTEMS_RTEMS_ASR_INL
+#define _RTEMS_RTEMS_ASR_INL
+
+#include <rtems/score/isr.h>
+
+/**
+ * @addtogroup ClassicASR
+ * @{
+ */
+
+/**
+ * @brief ASR_Initialize
+ *
+ * This routine initializes the given RTEMS_ASR information record.
+ */
+RTEMS_INLINE_ROUTINE void _ASR_Initialize (
+ ASR_Information *information
+)
+{
+ information->is_enabled = false;
+ information->handler = NULL;
+ information->mode_set = RTEMS_DEFAULT_MODES;
+ information->signals_posted = 0;
+ information->signals_pending = 0;
+ information->nest_level = 0;
+}
+
+/**
+ * @brief ASR_Swap_signals
+ *
+ * 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 );
+}
+
+/**
+ * @brief ASR_Is_null_handler
+ *
+ * This function returns TRUE if the given asr_handler is NULL and
+ * FALSE otherwise.
+ */
+RTEMS_INLINE_ROUTINE bool _ASR_Is_null_handler (
+ rtems_asr_entry asr_handler
+)
+{
+ return asr_handler == NULL;
+}
+
+/**
+ * @brief ASR_Are_signals_pending
+ *
+ * This function returns TRUE if there are signals pending in the
+ * given RTEMS_ASR information record and FALSE otherwise.
+ */
+RTEMS_INLINE_ROUTINE bool _ASR_Are_signals_pending (
+ ASR_Information *information
+)
+{
+ return information->signals_posted != 0;
+}
+
+/**
+ * @brief ASR_Post_signals
+ *
+ * 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 */