AsyncMutex.hxx

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#ifndef _UTILS_ASYNCMUTEX_HXX_
#define _UTILS_ASYNCMUTEX_HXX_
 
#include "utils/Queue.hxx"
 
class AsyncMutex : public QAsync
{
public:
    AsyncMutex()
    {
        Unlock();
    }
 
    ~AsyncMutex()
    {
    }
 
    //
    void CheckToken(QMember *token)
    {
        HASSERT(token == &token_);
    }
 
    void AssertLocked()
    {
        HASSERT(empty());
    }
 
    void AssertUnlocked()
    {
        HASSERT(!empty());
    }
 
    void Unlock()
    {
        AssertLocked();
        insert(&token_);
    }
 
private:
    class Token : public QMember {};
    Token token_;
};
 
#endif // _UTILS_ASYNCMUTEX_HXX_