common/guard.h

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#ifndef __GUARD_H
#define __GUARD_H

extern "C" {
#include <pthread.h>
}

class Guard
{
  public:
    Guard(const pthread_mutex_t *mutex);
    ~Guard();

    // Utility methods to help in creating and destroying a mutex that
    // can then be used with a Guard.
    static void initialize_mutex(pthread_mutex_t &mutex);
    static void destroy_mutex(pthread_mutex_t &mutex);

  protected:
    const pthread_mutex_t       *mutex;
};

#endif  /* __GUARD_H */

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