updating code from Flying Laptop

This is the framework of Flying Laptop OBSW version A.13.0.

osal/rtems/Mutex.cpp

@@ -0,0 +1,35 @@
+#include "Mutex.h"
+#include <framework/serviceinterface/ServiceInterfaceStream.h>
+
+const uint32_t MutexIF::NO_TIMEOUT = RTEMS_NO_TIMEOUT;
+uint8_t Mutex::count = 0;
+
+Mutex::Mutex() :
+		mutexId(0) {
+	rtems_name mutexName = ('M' << 24) + ('T' << 16) + ('X' << 8) + count++;
+	rtems_status_code status = rtems_semaphore_create(mutexName, 1,
+	RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY | RTEMS_INHERIT_PRIORITY, 0,
+			&mutexId);
+	if (status != RTEMS_SUCCESSFUL) {
+		error << "Mutex: creation with name, id " << mutexName << ", " << mutexId
+				<< " failed with " << status << std::endl;
+	}
+}
+
+Mutex::~Mutex() {
+	rtems_status_code status = rtems_semaphore_delete(mutexId);
+	if (status != RTEMS_SUCCESSFUL) {
+		error << "Mutex: deletion for id " << mutexId
+				<< " failed with " << status << std::endl;
+	}
+}
+
+ReturnValue_t Mutex::lockMutex(uint32_t timeoutMs) {
+	rtems_status_code status = rtems_semaphore_obtain(mutexId, RTEMS_WAIT, timeoutMs);
+	return RtemsBasic::convertReturnCode(status);
+}
+
+ReturnValue_t Mutex::unlockMutex() {
+	rtems_status_code status = rtems_semaphore_release(mutexId);
+	return RtemsBasic::convertReturnCode(status);
+}