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authorJoel Sherrill <joel.sherrill@OARcorp.com>1999-05-17 23:03:07 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1999-05-17 23:03:07 +0000
commit5f9b3db545887fd328d006e33f1dca295584bc6f (patch)
tree59757f3f5ba22cca792f054ca09f9fbfdd697cc6 /cpukit/rtems/src/ratemontimeout.c
parentSplit the Semaphore Manager into one routine per file. (diff)
downloadrtems-5f9b3db545887fd328d006e33f1dca295584bc6f.tar.bz2
Split Rate Monotonic Manager into one routine per file.
Diffstat (limited to 'cpukit/rtems/src/ratemontimeout.c')
-rw-r--r--cpukit/rtems/src/ratemontimeout.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/cpukit/rtems/src/ratemontimeout.c b/cpukit/rtems/src/ratemontimeout.c
new file mode 100644
index 0000000000..6c8a1976f4
--- /dev/null
+++ b/cpukit/rtems/src/ratemontimeout.c
@@ -0,0 +1,77 @@
+/*
+ * Rate Monotonic Manager
+ *
+ *
+ * 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/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/object.h>
+#include <rtems/rtems/ratemon.h>
+#include <rtems/score/thread.h>
+
+/*PAGE
+ *
+ * _Rate_monotonic_Timeout
+ *
+ * This routine processes a period ending. If the owning thread
+ * is waiting for the period, that thread is unblocked and the
+ * period reinitiated. Otherwise, the period is expired.
+ * This routine is called by the watchdog handler.
+ *
+ * Input parameters:
+ * id - period id
+ *
+ * Output parameters: NONE
+ */
+
+void _Rate_monotonic_Timeout(
+ Objects_Id id,
+ void *ignored
+)
+{
+ Rate_monotonic_Control *the_period;
+ Objects_Locations location;
+ Thread_Control *the_thread;
+
+ the_period = _Rate_monotonic_Get( id, &location );
+ switch ( location ) {
+ case OBJECTS_REMOTE: /* impossible */
+ case OBJECTS_ERROR:
+ break;
+
+ case OBJECTS_LOCAL:
+ the_thread = the_period->owner;
+ if ( _States_Is_waiting_for_period( the_thread->current_state ) &&
+ the_thread->Wait.id == the_period->Object.id ) {
+ _Thread_Unblock( the_thread );
+ the_period->owner_ticks_executed_at_period =
+ the_thread->ticks_executed;
+
+ the_period->time_at_period = _Watchdog_Ticks_since_boot;
+
+ _Watchdog_Reset( &the_period->Timer );
+ } else if ( the_period->state == RATE_MONOTONIC_OWNER_IS_BLOCKING ) {
+ the_period->state = RATE_MONOTONIC_EXPIRED_WHILE_BLOCKING;
+ the_period->owner_ticks_executed_at_period =
+ the_thread->ticks_executed;
+
+ the_period->time_at_period = _Watchdog_Ticks_since_boot;
+ _Watchdog_Reset( &the_period->Timer );
+ } else
+ the_period->state = RATE_MONOTONIC_EXPIRED;
+ _Thread_Unnest_dispatch();
+ break;
+ }
+}