#ifndef ROOT_TSemaphore
#define ROOT_TSemaphore

//+SEQ,CopyRight,T=NOINCLUDE.

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// TSemaphore                                                           //
//                                                                      //
// This class implements a counting semaphore. Use a semaphore          //
// to synchronize threads.                                              //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

#ifndef ROOT_TObject
//*KEEP,TObject.
#include "TObject.h"
//*KEND.
#endif
#ifndef ROOT_TMutex
//*KEEP,TMutex,T=C++.
#include "TMutex.h"
//*KEND.
#endif
#ifndef ROOT_TCondition
//*KEEP,TCondition,T=C++.
#include "TCondition.h"
//*KEND.
#endif


class TSemaphore : public TObject {

private:
   TMutex       fMutex;
   TCondition   fCond;
   Int_t        fValue;

public:
   TSemaphore(UInt_t initial = 1);
   virtual ~TSemaphore() { }

   Int_t  Wait();
   Int_t  TryWait();
   Int_t  Post();

   ClassDef(TSemaphore,0)  // Counting semaphore class
};

#endif