GSemaphore.h

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#ifndef __GSEMAPHORE_H
#define __GSEMAPHORE_H

class LgiClass GSemaphore
{
    OsThreadId _Thread;
    OsSemaphore _Sem;
    char *File;
    int Line;
    #ifdef _DEBUG
    bool _DebugSem;
    #endif
    
    bool _Lock();
    void _Unlock();
    char *_Name;

protected:
    int _Count;

public:
    GSemaphore
    (
        char *name = 0
    );
    virtual ~GSemaphore();

    bool Lock
    (
        char *file,
        int line
    );
    bool LockWithTimeout
    (
        int Timeout,
        char *file,
        int line
    );
    void Unlock();

    char *GetName();
    void SetName(char *s);
    
    #ifdef _DEBUG
    void SetDebug(bool b = true) { _DebugSem = b; }
    int GetCount() { return _Count; }
    #endif
    
    class Auto
    {
        GSemaphore *Sem;
        bool Locked;
    
    public:
        Auto(GSemaphore *s, char *file, int line)
        {
            LgiAssert(s);
            Locked = (Sem = s) ? Sem->Lock(file, line) : 0;
            LgiAssert(Locked);
        }

        Auto(GSemaphore *s, int timeout, char *file, int line)
        {
            LgiAssert(s);
            Locked = (Sem = s) ? Sem->LockWithTimeout(timeout, file, line) : 0;
        }
        
        ~Auto()
        {
            if (Locked) Sem->Unlock();
        }

        bool GetLocked() { return Locked; }
    };
};

#endif

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