source: box/trunk/lib/common/NamedLock.h @ 2536

// --------------------------------------------------------------------------
//
// File
//              Name:    NamedLock.h
//              Purpose: A global named lock, implemented as a lock file in file system
//              Created: 2003/08/28
//
// --------------------------------------------------------------------------

#ifndef NAMEDLOCK__H
#define NAMEDLOCK__H

// --------------------------------------------------------------------------
//
// Class
//              Name:    NamedLock
//              Purpose: A global named lock, implemented as a lock file in file system
//              Created: 2003/08/28
//
// --------------------------------------------------------------------------
class NamedLock
{
public:
        NamedLock();
        ~NamedLock();
private:
        // No copying allowed
        NamedLock(const NamedLock &);

public:
        bool TryAndGetLock(const std::string& rFilename, int mode = 0755);
        bool GotLock() {return mFileDescriptor != -1;}
        void ReleaseLock();
        
        
private:
        int mFileDescriptor;
};

#endif // NAMEDLOCK__H