src/lib/file-lock.h

	file-lock.h revision 02b32cf39a098edf60981fc228e4b034f11f3b90
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen#ifndef __FILE_LOCK_H
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen#define __FILE_LOCK_H
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen#include <unistd.h>
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen#include <fcntl.h>
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen/* Lock whole file descriptor. Returns 1 if successful, 0 if lock failed,
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen   or -1 if error. lock_type is F_WRLCK, F_RDLCK or F_UNLCK. */
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainenint file_try_lock(int fd, int lock_type);
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen/* Lock whole file descriptor. Returns 1 if successful, or -1 if error. */
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainenint file_wait_lock(int fd, int lock_type);
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen#endif