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#ifndef _SEMAPHORE_H
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#ifndef _SEMAPHORE_H
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#define _SEMAPHORE_H
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#define _SEMAPHORE_H
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#include "mutex.h"
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#include "mutex.h"
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#include <sys/time.h>
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class Semaphore : public Mutex
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class Semaphore : public Mutex
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{
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{
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public:
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public:
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    Semaphore() { pthread_cond_init(&myCondition, NULL); };
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    Semaphore() { pthread_cond_init(&myCondition, NULL); };
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    ~Semaphore() { pthread_cond_destroy(&myCondition); };
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    ~Semaphore() { pthread_cond_destroy(&myCondition); };
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    int broadcast() { return pthread_cond_broadcast(&myCondition); };
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    int broadcast() { return pthread_cond_broadcast(&myCondition); };
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    int wait() { return pthread_cond_wait(&myCondition, &myMutex); };
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    int wait() { return pthread_cond_wait(&myCondition, &myMutex); };
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    int wait(int timeout) // Returns ETIMEDOUT on timeout
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    {
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        gettimeofday(&myTimeval, NULL);
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         /* Convert from timeval to timespec */
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        myTimespec.tv_sec  = myTimeval.tv_sec;
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        myTimespec.tv_nsec = myTimeval.tv_usec * 1000;
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        myTimespec.tv_sec += timeout;
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        return pthread_cond_timedwait(&myCondition, &myMutex, &myTimespec);
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    }
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protected:
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protected:
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    pthread_cond_t myCondition;
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    pthread_cond_t myCondition;
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    struct timespec myTimespec;
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    struct timeval myTimeval;
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};
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};
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#endif  /* _SEMAPHORE_H */
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#endif  /* _SEMAPHORE_H */
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