#include <sys/mutex.h>
#include <sys/atomic.h>

#include <stdlib.h>

extern avrThread* _thread_current;

uint8_t	mutex_try_lock(MUTEX *mutex)
{
	if (!mutex)
		return 0;

	{
		ATOMIC
		
		if ((mutex->thread == NULL) || (mutex->thread == current_thread()))
		{
			mutex->thread = current_thread();
			mutex->locked++;
			return -1;
		};
	};
	
	return 0;
};