added task management implementation

osal/FreeRTOS/TaskManagement.cpp

@@ -0,0 +1,32 @@
+/**
+ * @file TaskManagement.cpp
+ *
+ * @date 26.02.2020
+ *
+ */
+#include <framework/osal/FreeRTOS/TaskManagement.h>
+#include <FreeRTOS.h>
+#include "portmacro.h"
+#include "task.h"
+
+/**
+ * TODO: This stuff is hardware and architecture and mission dependant...
+ * 	     Some FreeRTOS implementations might be able to determine their own task context for example.
+ * 	     If not ISRs are used, or task preemption is enabled, some of this stuff might
+ * 	     not be necessary anyway. Maybe there is a better solution?
+ */
+void TaskManagement::requestContextSwitchFromTask() {
+	vTaskDelay(0);
+}
+
+void TaskManagement::requestContextSwitch(CallContext callContext = CallContext::task) {
+	if(callContext == CallContext::isr) {
+		// This function depends on the partmacro.h definition for the specific device
+		portYIELD_FROM_ISR();
+	} else {
+		requestContextSwitchFromTask();
+	}
+}
+
+
+