Changes in kernel/generic/src/ddi/ddi.c [2fa10f6:7a0359b] in mainline

File:

• kernel/generic/src/ddi/ddi.c (modified) (1 diff)

kernel/generic/src/ddi/ddi.c

@@ -258 +258 @@
 }
 
+/** Disable or enable preemption.
+ *
+ * @param enable If non-zero, the preemption counter will be decremented,
+ *               leading to potential enabling of preemption. Otherwise
+ *               the preemption counter will be incremented, preventing
+ *               preemption from occurring.
+ *
+ * @return Zero on success or EPERM if callers capabilities are not sufficient.
+ *
+ */
+unative_t sys_preempt_control(int enable)
+{
+        if (!(cap_get(TASK) & CAP_PREEMPT_CONTROL))
+                return EPERM;
+        
+        if (enable)
+                preemption_enable();
+        else
+                preemption_disable();
+        
+        return 0;
+}
+
 /** @}
  */