score: Indroduce cancel job scheduler operation

Do not use a deadline value of zero to indicate a job cancellation.  Use
a dedicated scheduler operation for this.

1 files changed, 9 insertions, 0 deletions

diff --git a/cpukit/score/src/schedulerdefaultreleasejob.c b/cpukit/score/src/schedulerdefaultreleasejob.c
index db4ab0e8e1..439f6b2649 100644
--- a/cpukit/score/src/schedulerdefaultreleasejob.c
+++ b/cpukit/score/src/schedulerdefaultreleasejob.c
@@ -31,3 +31,12 @@ void _Scheduler_default_Release_job(
   (void) the_thread;
   (void) deadline;
 }
+
+void _Scheduler_default_Cancel_job(
+  const Scheduler_Control *scheduler,
+  Thread_Control          *the_thread
+)
+{
+  (void) scheduler;
+  (void) the_thread;
+}