//-----------------------------------------------
// pthread.h: reader-priority
//-----------------------------------------------

#ifndef pthread_h
#define pthread_h

//-----------------------------------------------

#include <cstddef>   // std::size_t
#include <pthread.h> // pthread_rwlock_*

//-----------------------------------------------

class pthread_lock
{
public:
    pthread_lock(std::size_t) { pthread_rwlock_init(&rwlock, NULL); }
    ~pthread_lock() { pthread_rwlock_destroy(&rwlock); }
    void reader_lock() { pthread_rwlock_rdlock(&rwlock); }
    void reader_unlock() { pthread_rwlock_unlock(&rwlock); }
    void writer_lock() { pthread_rwlock_wrlock(&rwlock); }
    void writer_unlock() { pthread_rwlock_unlock(&rwlock); }

private:
    pthread_rwlock_t rwlock;
};

//-----------------------------------------------

#endif // pthread_h