#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);
}