haiku/headers/posix/sys/file.h
Axel Dörfler a32a4683ff * Implemented flock() semantics to the advisory locking backend. Not tested
(must also compare to BSD; I've looked at their sources, but I might have
  missed something).
* Added sys/file.h and the flock() system call.
* common_fcntl() could forget to put back the file descriptor on some error
  conditions (I guess we should introduce and use a DescriptorGetter class).
* Cleaned up fcntl.h, moved the BSD extensions S_IREAD and S_IWRITE to
  sys/stat.h where they belong, and added the missing S_IEXEC to them.
* Added some more comments.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23836 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-02-03 15:37:31 +00:00

30 lines
520 B
C

/*
* Copyright 2008, Haiku Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _SYS_FILE_H
#define _SYS_FILE_H
#include <sys/types.h>
/* for use with flock() */
#define LOCK_SH 0x01 /* shared file lock */
#define LOCK_EX 0x02 /* exclusive file lock */
#define LOCK_NB 0x04 /* don't block when locking */
#define LOCK_UN 0x08 /* unlock file */
#ifdef __cplusplus
extern "C" {
#endif
extern int flock(int fd, int op);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_FILE_H */