#include <pthread.h>

class Mutex
{
public:
    Mutex();
    ~Mutex();

    void lock();
    void unlock();
    bool isLocked();

private:
    pthread_mutex_t mutex;
    bool locked;
};

class SimpleThread
{
public:
    SimpleThread(void *data = NULL);
    virtual ~SimpleThread();

    void start();
    void stop();
    bool isRunning();

protected:
    virtual void run() = 0;
    pthread_t thread_id;
    void *userData;
    static void *boot(void *context);
};