efilelock.h

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#ifndef EFILELOCK_H
#define EFILELOCK_H

#include <unistd.h>
#include <string.h>
#include <fcntl.h>

namespace EM
{
    namespace EventDownloader
    {
        class EFileLock
        {
        private:
            char *m_path;
            int m_file;

        public:
            EFileLock();
            EFileLock( const char *path);
            ~EFileLock();

            bool setPath( const char *path);
            char* getPath();

            // tries to gain the lock (returns true if succeeded)
            // multiple call of this method is OK
            bool lock();

            // true = somebody else has lock
            // false = unlocked or we have lock
            bool check();

            // tries to release the lock (returns true if success)
            bool unlock();
        };

    }
}

#endif