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#ifndef _SYS_FILE_H
#define _SYS_FILE_H
#include <sys/cdefs.h>
extern int fcntl(int fd, int cmd, ...) __THROW;
extern int flock(int fd, int operation) __THROW;
/* Operations for the `flock' call. */
#define LOCK_SH 1 /* Shared lock. */
#define LOCK_EX 2 /* Exclusive lock. */
#define LOCK_UN 8 /* Unlock. */
/* Can be OR'd in to one of the above. */
#define LOCK_NB 4 /* Don't block when locking. */
#endif /* _SYS_FILE_H */
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