schedsim_priority: Add priority inheritance scenario.

1 files changed, 25 insertions, 0 deletions

diff --git a/schedsim/shell/schedsim_priority/scenarios/inherit_priority.scen b/schedsim/shell/schedsim_priority/scenarios/inherit_priority.scen
new file mode 100644
index 0000000..ea1e72b
--- /dev/null
+++ b/schedsim/shell/schedsim_priority/scenarios/inherit_priority.scen
@@ -0,0 +1,25 @@
+#
+#  Verify priority inheritance with a priority ceiling mutex
+#
+echo "*** TEST INHERIT PRIORITY ***"
+rtems_init
+echo "=== Create 0x0a010001 at priority 8 ==="
+task_create smp1 8
+cpus smp1
+
+# sem1 is binary semaphore (e.g. mutex) with priority ceiling of 5 
+echo "Create mutex with priority ceiling of 5
+semaphore_create -b -p -C 5 -V 1 sem1
+cpus smp1
+
+semaphore_obtain sem1 0
+
+# This should show smp4 has inherited a priority of 5
+echo "smp1 should inherit a priority of 5
+cpus smp1
+
+semaphore_release sem1
+# This should show smp1 has its original priority of 8
+echo "smp1 should return to a priority of 8
+cpus smp1
+echo "*** END OF TEST INHERIT PRIORITY ***"