1 files changed, 152 insertions, 0 deletions
diff --git a/include/rtems/rtems/asrimpl.h b/include/rtems/rtems/asrimpl.h
new file mode 100644
index 0000000000..38ee35d83a
--- /dev/null
+++ b/include/rtems/rtems/asrimpl.h
@@ -0,0 +1,152 @@
+/**
+ * @file
+ *
+ * @ingroup ClassicASRImpl
+ *
+ * @brief Classic ASR Implementation
+ */
+
+/* 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.org/license/LICENSE.
+ */
+
+#ifndef _RTEMS_RTEMS_ASRIMPL_H
+#define _RTEMS_RTEMS_ASRIMPL_H
+
+#include <rtems/rtems/asr.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup ClassicASRImpl Classic ASR Implementation
+ *
+ * @ingroup ClassicASR
+ *
+ * @{
+ */
+
+/**
+ *  @brief ASR_Initialize
+ *
+ *  This routine initializes the given RTEMS_ASR information record.
+ */
+RTEMS_INLINE_ROUTINE void _ASR_Initialize (
+  ASR_Information *asr
+)
+{
+  asr->is_enabled      = false;
+  asr->handler         = NULL;
+  asr->mode_set        = RTEMS_DEFAULT_MODES;
+  asr->signals_posted  = 0;
+  asr->signals_pending = 0;
+  asr->nest_level      = 0;
+}
+
+RTEMS_INLINE_ROUTINE void _ASR_Create( ASR_Information *asr )
+{
+  _ISR_lock_Initialize( &asr->Lock, "ASR" );
+  _ASR_Initialize( asr );
+}
+
+RTEMS_INLINE_ROUTINE void _ASR_Destroy( ASR_Information *asr )
+{
+  _ISR_lock_Destroy( &asr->Lock );
+}
+
+/**
+ *  @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 *asr
+)
+{
+  rtems_signal_set _signals;
+  ISR_lock_Context lock_context;
+
+  _ISR_lock_ISR_disable_and_acquire( &asr->Lock, &lock_context );
+    _signals             = asr->signals_pending;
+    asr->signals_pending = asr->signals_posted;
+    asr->signals_posted  = _signals;
+  _ISR_lock_Release_and_ISR_enable( &asr->Lock, &lock_context );
+}
+
+/**
+ *  @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 *asr
+)
+{
+  return asr->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(
+  ASR_Information  *asr,
+  rtems_signal_set  signals,
+  rtems_signal_set *signal_set
+)
+{
+  ISR_lock_Context lock_context;
+
+  _ISR_lock_ISR_disable_and_acquire( &asr->Lock, &lock_context );
+    *signal_set |= signals;
+  _ISR_lock_Release_and_ISR_enable( &asr->Lock, &lock_context );
+}
+
+RTEMS_INLINE_ROUTINE rtems_signal_set _ASR_Get_posted_signals(
+  ASR_Information *asr
+)
+{
+  rtems_signal_set signal_set;
+  ISR_lock_Context lock_context;
+
+  _ISR_lock_ISR_disable_and_acquire( &asr->Lock, &lock_context );
+    signal_set = asr->signals_posted;
+    asr->signals_posted = 0;
+  _ISR_lock_Release_and_ISR_enable( &asr->Lock, &lock_context );
+
+  return signal_set;
+}
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */