diff options
Diffstat (limited to 'bits/fcntl.h')
| -rw-r--r-- | bits/fcntl.h | 73 |
1 files changed, 62 insertions, 11 deletions
diff --git a/bits/fcntl.h b/bits/fcntl.h index ba5de00..ddf7ab2 100644 --- a/bits/fcntl.h +++ b/bits/fcntl.h @@ -1,5 +1,5 @@ -/* O_*, F_*, FD_* bit values for stub configuration. - Copyright (C) 1991, 1992, 1997, 2000, 2004 Free Software Foundation, Inc. +/* O_*, F_*, FD_* bit values. 4.4BSD/Generic version. + Copyright (C) 1991-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,10 +16,8 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -/* These values should be changed as appropriate for your system. */ - #ifndef _FCNTL_H -# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." +#error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." #endif @@ -33,7 +31,24 @@ #define O_CREAT 0x0200 /* Create file if it doesn't exist. */ #define O_EXCL 0x0800 /* Fail if file already exists. */ #define O_TRUNC 0x0400 /* Truncate file to zero length. */ -#define O_NOCTTY 0x0100 /* Don't assign a controlling terminal. */ +#define O_NOCTTY 0x8000 /* Don't assign a controlling terminal. */ +#define O_ASYNC 0x0040 /* Send SIGIO to owner when data is ready. */ +#define O_FSYNC 0x0080 /* Synchronous writes. */ +#define O_SYNC O_FSYNC +#ifdef __USE_MISC +#define O_SHLOCK 0x0010 /* Open with shared file lock. */ +#define O_EXLOCK 0x0020 /* Open with shared exclusive lock. */ +#endif +#ifdef __USE_XOPEN2K8 +# define O_DIRECTORY 0x00200000 /* Must be a directory. */ +# define O_NOFOLLOW 0x00000100 /* Do not follow links. */ +# define O_CLOEXEC 0x00400000 /* Set close_on_exec. */ +#endif + +/* All opens support large file sizes, so there is no flag bit for this. */ +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE 0 +#endif /* File status flags for `open' and `fcntl'. */ #define O_APPEND 0x0008 /* Writes append to the file. */ @@ -43,6 +58,22 @@ # define O_NDELAY O_NONBLOCK #endif +#ifdef __USE_BSD +/* Bits in the file status flags returned by F_GETFL. + These are all the O_* flags, plus FREAD and FWRITE, which are + independent bits set by which of O_RDONLY, O_WRONLY, and O_RDWR, was + given to `open'. */ +# define FREAD 1 +# define FWRITE 2 + +/* Traditional BSD names the O_* bits. */ +# define FASYNC O_ASYNC +# define FFSYNC O_FSYNC +# define FSYNC O_SYNC +# define FAPPEND O_APPEND +# define FNDELAY O_NDELAY +#endif + /* Mask for file access modes. This is system-dependent in case some system ever wants to define some other flavor of access. */ #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR) @@ -53,13 +84,21 @@ #define F_SETFD 2 /* Set file descriptor flags. */ #define F_GETFL 3 /* Get file status flags. */ #define F_SETFL 4 /* Set file status flags. */ -#if defined __USE_BSD || defined __USE_UNIX98 -# define F_GETOWN 5 /* Get owner (receiver of SIGIO). */ -# define F_SETOWN 6 /* Set owner (receiver of SIGIO). */ +#if defined __USE_BSD || defined __USE_UNIX98 || defined __USE_XOPEN2K8 +#define F_GETOWN 5 /* Get owner (receiver of SIGIO). */ +#define F_SETOWN 6 /* Set owner (receiver of SIGIO). */ #endif #define F_GETLK 7 /* Get record locking info. */ -#define F_SETLK 8 /* Set record locking info. */ -#define F_SETLKW 9 /* Set record locking info, wait. */ +#define F_SETLK 8 /* Set record locking info (non-blocking). */ +#define F_SETLKW 9 /* Set record locking info (blocking). */ +/* Not necessary, we always have 64-bit offsets. */ +#define F_GETLK64 F_GETLK /* Get record locking info. */ +#define F_SETLK64 F_SETLK /* Set record locking info (non-blocking). */ +#define F_SETLKW64 F_SETLKW/* Set record locking info (blocking). */ +#ifdef __USE_XOPEN2K8 +# define F_DUPFD_CLOEXEC 12 /* Duplicate file descriptor with + close-on-exit set. */ +#endif /* File descriptor flags used with F_GETFD and F_SETFD. */ #define FD_CLOEXEC 1 /* Close on exec. */ @@ -71,12 +110,24 @@ argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests. */ struct flock { + __off_t l_start; /* Offset where the lock begins. */ + __off_t l_len; /* Size of the locked area; zero means until EOF. */ + __pid_t l_pid; /* Process holding the lock. */ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ + }; + +#ifdef __USE_LARGEFILE64 +/* Note this matches struct flock exactly. */ +struct flock64 + { __off_t l_start; /* Offset where the lock begins. */ __off_t l_len; /* Size of the locked area; zero means until EOF. */ __pid_t l_pid; /* Process holding the lock. */ + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ }; +#endif /* Values for the `l_type' field of a `struct flock'. */ #define F_RDLCK 1 /* Read lock. */ |