1 files changed, 78 insertions, 0 deletions
diff --git a/cpukit/score/src/coremutexseize.c b/cpukit/score/src/coremutexseize.c
new file mode 100644
index 0000000000..db6d513cb4
--- /dev/null
+++ b/cpukit/score/src/coremutexseize.c
@@ -0,0 +1,78 @@
+/*
+ *  Mutex Handler
+ *
+ *  DESCRIPTION:
+ *
+ *  This package is the implementation of the Mutex Handler.
+ *  This handler provides synchronization and mutual exclusion capabilities.
+ *
+ *  COPYRIGHT (c) 1989-2006.
+ *  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.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/system.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/coremutex.h>
+#include <rtems/score/states.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/threadq.h>
+
+#if defined(__RTEMS_DO_NOT_INLINE_CORE_MUTEX_SEIZE__)
+void _CORE_mutex_Seize(
+  CORE_mutex_Control  *_the_mutex,
+  Objects_Id           _id,
+  bool                 _wait,
+  Watchdog_Interval    _timeout,
+  ISR_Level            _level
+)
+{
+  _CORE_mutex_Seize_body( _the_mutex, _id, _wait, _timeout, _level );
+}
+#endif
+
+/*PAGE
+ *
+ *  _CORE_mutex_Seize (interrupt blocking support)
+ *
+ *  This routine blocks the caller thread after an attempt attempts to obtain
+ *  the specified mutex has failed.
+ *
+ *  Input parameters:
+ *    the_mutex - pointer to mutex control block
+ *    timeout   - number of ticks to wait (0 means forever)
+ */
+
+void _CORE_mutex_Seize_interrupt_blocking(
+  CORE_mutex_Control  *the_mutex,
+  Watchdog_Interval    timeout
+)
+{
+  Thread_Control   *executing;
+
+  executing = _Thread_Executing;
+  if ( _CORE_mutex_Is_inherit_priority( &the_mutex->Attributes ) ) {
+    if ( the_mutex->holder->current_priority > executing->current_priority ) {
+      _Thread_Change_priority(
+        the_mutex->holder,
+        executing->current_priority,
+        false
+      );
+    }
+  }
+
+  the_mutex->blocked_count++;
+  _Thread_queue_Enqueue( &the_mutex->Wait_queue, timeout );
+
+  _Thread_Enable_dispatch();
+}
+