export np-section preemption flag

2 files changed, 5 insertions, 0 deletions

diff --git a/include/litmus.h b/include/litmus.h
index 0371a6c..7e5092b 100644
--- a/include/litmus.h
+++ b/include/litmus.h
@@ -106,6 +106,7 @@ task_class_t str2class(const char* str);
 void enter_np(void);
 void exit_np(void);
 void exit_np_trace(void);
+int  requested_to_preempt(void);
 
 /* task system support */
 int wait_for_ts_release(void);
diff --git a/src/kernel_iface.c b/src/kernel_iface.c
index 34767ae..8ab42de 100644
--- a/src/kernel_iface.c
+++ b/src/kernel_iface.c
@@ -84,6 +84,10 @@ void exit_np_trace(void)
         }
 }
 
+int requested_to_preempt(void)
+{
+        return (likely(ctrl_page != NULL) && ctrl_page->sched.np.preempt);
+}
 
 /* init and return a ptr to the control page for
  * preemption and migration overhead analysis