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authorJoel Sherrill <joel.sherrill@OARcorp.com>1999-11-02 21:45:15 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1999-11-02 21:45:15 +0000
commit82cb78d84c7962d2b55e1f83c9f8cbcbef386d87 (patch)
treebae0b9595689a38992ffcc4bad8ddfea285fc16b /c/src/exec/score/src/coremsgflush.c
parentSplit Heap and Time of Day Handlers. (diff)
downloadrtems-82cb78d84c7962d2b55e1f83c9f8cbcbef386d87.tar.bz2
Split core message queue and watchdog handler objects into separate files.
Diffstat (limited to 'c/src/exec/score/src/coremsgflush.c')
-rw-r--r--c/src/exec/score/src/coremsgflush.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/c/src/exec/score/src/coremsgflush.c b/c/src/exec/score/src/coremsgflush.c
new file mode 100644
index 0000000000..9d219e90b7
--- /dev/null
+++ b/c/src/exec/score/src/coremsgflush.c
@@ -0,0 +1,56 @@
+/*
+ * CORE Message Queue Handler
+ *
+ * DESCRIPTION:
+ *
+ * This package is the implementation of the CORE Message Queue Handler.
+ * This core object provides task synchronization and communication functions
+ * via messages passed to queue objects.
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * 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.
+ *
+ * $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/score/chain.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/object.h>
+#include <rtems/score/coremsg.h>
+#include <rtems/score/states.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/wkspace.h>
+#if defined(RTEMS_MULTIPROCESSING)
+#include <rtems/score/mpci.h>
+#endif
+
+/*PAGE
+ *
+ * _CORE_message_queue_Flush
+ *
+ * This function flushes the message_queue's task wait queue. The number
+ * of messages flushed from the queue is returned.
+ *
+ * Input parameters:
+ * the_message_queue - the message_queue to be flushed
+ *
+ * Output parameters:
+ * returns - the number of messages flushed from the queue
+ */
+
+unsigned32 _CORE_message_queue_Flush(
+ CORE_message_queue_Control *the_message_queue
+)
+{
+ if ( the_message_queue->number_of_pending_messages != 0 )
+ return _CORE_message_queue_Flush_support( the_message_queue );
+ else
+ return 0;
+}
+