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C-/C++-Quelltext

// threading.h


namespace Threading
{

  class CriticalSection
  {
  private:
    CRITICAL_SECTION s;
    CriticalSection(const CriticalSection&);
    CriticalSection& operator =(const CriticalSection&);
  public:
    CriticalSection() { InitializeCriticalSection(&s); }
    ~CriticalSection() { DeleteCriticalSection(&s); }

    void lock() { EnterCriticalSection(&s); }
    void unlock() { LeaveCriticalSection(&s); }
  };

  template<class T = CriticalSection>
  class scoped_lock
  {
  private:
    T& _t;
    scoped_lock(const scoped_lock&);
    scoped_lock& operator =(const scoped_lock&);
  public:
    scoped_lock(T& t) : _t(t) { _t.lock(); }
    ~scoped_lock() { _t.unlock(); }
  };

}


// whatever.cpp


// ...


Threading::CriticalSection write_mutex;

// ...


{
  Threading::scoped_lock<> l(write_mutex);
  std::cout << "blaaaaah" << std::endl;
}