PhxSemaphore.h

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#ifndef PHX_SEMAPHORE_H
#define PHX_SEMAPHORE_H

#include <Phx/PhxConfig.h>
#include <Phx/PhxTypes.h>

#if HAVE_SEMAPHORE_H
#include <semaphore.h>
#else
#error semaphore.h not found.
#endif

namespace Phx {

  class Semaphore {
  public:

    Semaphore(uint32_t initialValue = 0);

    ~Semaphore();


    void signal(void);

    void wait(void);

    int value(void)  { int v; sem_getvalue(&mSem, &v); return v; }
  private:
    sem_t  mSem;
  };
  
}; // namespace Phx

#endif /* PHX_SEMAPHORE_H */

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