task management header added

osal/FreeRTOS/TaskManagement.h

@@ -0,0 +1,38 @@
+/**
+ * @file TaskManagement.h
+ *
+ * @date 26.02.2020
+ */
+
+#ifndef FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_
+#define FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_
+
+/*!
+ * Used by functions to tell if they are being called from
+ * within an ISR or from a regular task. This is required because FreeRTOS
+ * has different functions for handling semaphores and messages from within an ISR and task.
+ */
+
+enum CallContext {
+	task = 0x00,//!< task_context
+	isr = 0xFF  //!< isr_context
+};
+
+class TaskManagement {
+public:
+	/**
+	 * In this function, a function dependant on the portmacro.h header function calls
+	 * to request a context switch can be specified.
+	 * This can be used if sending to the queue from an ISR caused a task to unblock
+	 * and a context switch is required.
+	 */
+	static void requestContextSwitch(CallContext callContext);
+
+	/**
+	 * If task preemption in FreeRTOS is disabled, a context switch
+	 * can be requested manually by calling this function.
+	 */
+	static void requestContextSwitchFromTask(void);
+};
+
+#endif /* FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_ */