fcntl.h
上传用户:lgb322
上传日期:2013-02-24
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文件大小:2k
- #ifndef _ALPHA_FCNTL_H
- #define _ALPHA_FCNTL_H
- /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
- located on an ext2 file system */
- #define O_ACCMODE 0003
- #define O_RDONLY 00
- #define O_WRONLY 01
- #define O_RDWR 02
- #define O_CREAT 01000 /* not fcntl */
- #define O_TRUNC 02000 /* not fcntl */
- #define O_EXCL 04000 /* not fcntl */
- #define O_NOCTTY 010000 /* not fcntl */
- #define O_NONBLOCK 00004
- #define O_APPEND 00010
- #define O_NDELAY O_NONBLOCK
- #define O_SYNC 040000
- #define FASYNC 020000 /* fcntl, for BSD compatibility */
- #define O_DIRECTORY 0100000 /* must be a directory */
- #define O_NOFOLLOW 0200000 /* don't follow links */
- #define O_LARGEFILE 0400000 /* will be set by the kernel on every open */
- #define O_DIRECT 02000000 /* direct disk access - should check with OSF/1 */
- #define F_DUPFD 0 /* dup */
- #define F_GETFD 1 /* get close_on_exec */
- #define F_SETFD 2 /* set/clear close_on_exec */
- #define F_GETFL 3 /* get file->f_flags */
- #define F_SETFL 4 /* set file->f_flags */
- #define F_GETLK 7
- #define F_SETLK 8
- #define F_SETLKW 9
- #define F_SETOWN 5 /* for sockets. */
- #define F_GETOWN 6 /* for sockets. */
- #define F_SETSIG 10 /* for sockets. */
- #define F_GETSIG 11 /* for sockets. */
- /* for F_[GET|SET]FL */
- #define FD_CLOEXEC 1 /* actually anything with low bit set goes */
- /* for posix fcntl() and lockf() */
- #define F_RDLCK 1
- #define F_WRLCK 2
- #define F_UNLCK 8
- /* for old implementation of bsd flock () */
- #define F_EXLCK 16 /* or 3 */
- #define F_SHLCK 32 /* or 4 */
- #define F_INPROGRESS 64
- /* operations for bsd flock(), also used by the kernel implementation */
- #define LOCK_SH 1 /* shared lock */
- #define LOCK_EX 2 /* exclusive lock */
- #define LOCK_NB 4 /* or'd with one of the above to prevent
- blocking */
- #define LOCK_UN 8 /* remove lock */
- #define LOCK_MAND 32 /* This is a mandatory flock */
- #define LOCK_READ 64 /* ... Which allows concurrent read operations */
- #define LOCK_WRITE 128 /* ... Which allows concurrent write operations */
- #define LOCK_RW 192 /* ... Which allows concurrent read & write ops */
-
- struct flock {
- short l_type;
- short l_whence;
- __kernel_off_t l_start;
- __kernel_off_t l_len;
- __kernel_pid_t l_pid;
- };
- #ifdef __KERNEL__
- #define flock64 flock
- #endif
- #define F_LINUX_SPECIFIC_BASE 1024
- #endif