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#ifndef filelock_h
#define filelock_h
#include "exittrap.h"
/////////////////////////////////////////////////////////////////////////////
//
// Encapsulate the flock() system call. By encapsulating the system call
// in a class, this allows automatic cleanup if, for some reason, an
// exception is thrown while a lock is being held.
//
/////////////////////////////////////////////////////////////////////////////
class FileLock : public ExitTrap {
void cleanup();
void forked();
int fd;
public:
FileLock();
virtual ~FileLock();
void Lock(const char *);
void UnLock();
static void do_filelock(int);
} ;
#endif
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