Added yield() method

Author: wizard97

src/ProcessScheduler/Config.h

@@ -4,7 +4,7 @@
 #include <Arduino.h>
 
 /* Uncomment this to allow Exception Handling functionality */
-//#define _PROCESS_EXCEPTION_HANDLING
+#define _PROCESS_EXCEPTION_HANDLING
 
 /* Uncomment this to allow the scheduler to interrupt long running processes */
 // This requires _PROCESS_EXCEPTION_HANDLING to also be enabled

src/ProcessScheduler/Process.h

@@ -138,6 +138,7 @@ class Process
 #ifdef _PROCESS_EXCEPTION_HANDLING
 
 protected:
+    inline void yield() { _scheduler.raiseException(LONGJMP_YIELD_CODE); }
     // By default do not handle
     virtual bool handleException(int e) { return false; }
     virtual void raiseException(int e) { _scheduler.raiseException(e); }

src/ProcessScheduler/Scheduler.cpp

@@ -410,15 +410,26 @@ void Scheduler::handleHistOverFlow(uint8_t div)
     {
         if (e != 0 && _active)
         {
-            if (e == LONGJMP_ISR_CODE)
-                _active->handleWarning(WARNING_PROC_TIMED_OUT);
-            else if (!_active->handleException(e))
-                handleException(*_active, e);
+            switch(e)
+            {
+#ifdef _PROCESS_TIMEOUT_INTERRUPTS
+                case LONGJMP_ISR_CODE:
+                    _active->handleWarning(WARNING_PROC_TIMED_OUT);
+                    break;
+#endif
+                case LONGJMP_YIELD_CODE:
+                    //no nothing
+                    break;
+
+                default:
+                    if (!_active->handleException(e))
+                        handleException(*_active, e);
+                    break;
 
+            }
             return true;
         }
         return false;
-
     }
 #endif