sharelib/MutexLock.h

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#ifndef MUTEX_LOCK_H
#define MUTEX_LOCK_H

#if !defined _LINUX && !defined _WIN32
#  error "Platform was not specified. Add macro _LINUX or _WIN32 to compiler options."
#endif

#include "sharelib.h"

#ifdef _WIN32
#    include <windows.h>
#    include <limits.h>
#endif // _WIN32

#ifdef _LINUX
#    include <unistd.h>
#    include <sys/types.h>
#    include <sys/time.h>
#    include <sys/ipc.h>
#    include <sys/sem.h>
#    include <sys/stat.h>
#    include <errno.h>
#endif //_LINUX

namespace Share {

  class Mutex {
    public:
      Mutex (RelocPtr<char> name) throw (ShareException);

      ~Mutex() throw ();

      struct LockData {
#ifdef _WIN32
        HANDLE m_hSemaphore;
#endif
      };

      void lock(LockData *data) throw (ShareException);

      void unlock(LockData *data) throw (ShareException);

    protected:
#ifdef _WIN32
      RelocPtr<char> name_;
#endif // _WIN32

#ifdef _LINUX
      int m_iSemaphore;
#endif // _LINUX

    private:
      Mutex (const Mutex&);                     
      void operator=(const Mutex&);             
  };

  class MutexLock {
    public:
      MutexLock (Mutex *mutex):
        mutex_ (mutex)
      {
        mutex_-> lock (&lockData);
      }

      ~MutexLock()
      {
        mutex_-> unlock (&lockData);
      }

    private:
      MutexLock (const MutexLock&);
      void operator= (const MutexLock&);

    private:
      Mutex *mutex_;
      Mutex::LockData lockData;
  };

}

#endif // MUTEX_LOCK_H

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