score: Introduce map priority scheduler operation

Introduce map/unmap priority scheduler operations to map thread priority
values from/to the user domain to/from the scheduler domain.  Use the
map priority operation to validate the thread priority.  The EDF
schedulers use this new operation to distinguish between normal
priorities and priorities obtain through a job release.

Update #2173.
Update #2556.

1 files changed, 21 insertions, 0 deletions

diff --git a/cpukit/score/src/schedulerdefaultmappriority.c b/cpukit/score/src/schedulerdefaultmappriority.c
new file mode 100644
index 0000000000..37a600011e
--- /dev/null
+++ b/cpukit/score/src/schedulerdefaultmappriority.c
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2016 embedded brains GmbH
+ *
+ * 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.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/score/scheduler.h>
+
+Priority_Control _Scheduler_default_Map_priority(
+  const Scheduler_Control *scheduler,
+  Priority_Control         priority
+)
+{
+  return priority;
+}