108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
#ifndef _FCNTL_H
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#define _FCNTL_H 1
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// https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/fcntl.h.html
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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#include <sys/stat.h>
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#include <unistd.h>
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#define __need_mode_t
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#define __need_off_t
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#define __need_pid_t
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#include <sys/types.h>
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#define F_DUPFD 1
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#define F_DUPFD_CLOEXEC 2
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#define F_GETFD 3
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#define F_SETFD 4
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#define F_GETFL 5
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#define F_SETFL 6
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#define F_GETLK 7
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#define F_SETLK 8
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#define F_SETLKW 9
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#define F_GETOWN 10
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#define F_SETOWN 11
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#define FD_CLOEXEC 1
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#define F_RDLCK 1
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#define F_UNLCK 2
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#define F_WRLCK 3
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// NOTE: also defined in stdio.h
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#define SEEK_SET 1
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#define SEEK_CUR 2
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#define SEEK_END 3
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/* bits 4-11 */
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#define O_CLOEXEC 0x00010
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#define O_CREAT 0x00020
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#define O_DIRECTORY 0x00040
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#define O_EXCL 0x00080
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#define O_NOCTTY 0x00100
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#define O_NOFOLLOW 0x00200
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#define O_TRUNC 0x00400
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#define O_TTY_INIT 0x00800
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/* bits 12-16 */
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#define O_APPEND 0x01000
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#define O_DSYNC 0x02000
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#define O_NONBLOCK 0x04000
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#define O_RSYNC 0x08000
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#define O_SYNC 0x10000
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/* bits 0-3 */
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#define O_RDONLY 0x00001
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#define O_WRONLY 0x00002
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#define O_RDWR (O_RDONLY | O_WRONLY)
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#define O_SEARCH 0x00004
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#define O_EXEC 0x00008
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#define O_ACCMODE 0x0000F
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/* bit 17 */
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#define AT_FDCWD 0x20000
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/* bit 18 */
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#define AT_EACCESS 0x40000
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/* bit 19 */
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#define AT_SYMLINK_NOFOLLOW 0x80000
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/* bit 20 */
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#define AT_SYMLINK_FOLLOW 0x100000
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/* bit 21 */
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#define AT_REMOVEDIR 0x200000
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/* bits 22-27 */
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#define POSIX_FADV_DONTNEED 0x0400000
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#define POSIX_FADV_NOREUSE 0x0800000
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#define POSIX_FADV_NORMAL 0x1000000
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#define POSIX_FADV_RANDOM 0x2000000
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#define POSIX_FADV_SEQUENTIAL 0x4000000
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#define POSIX_FADV_WILLNEED 0x8000000
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struct flock
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{
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short l_type; /* Type of lock; F_RDLCK, F_WRLCK, F_UNLCK. */
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short l_whence; /* Flag for starting offset. */
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off_t l_start; /* Relative offset in bytes. */
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off_t l_len; /* Size; if 0 then until EOF. */
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pid_t l_pid; /* Process ID of the process holding the lock; returned with F_GETLK. */
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};
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int creat(const char* path, mode_t mode);
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int fcntl(int fildes, int cmd, ...);
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int open(const char* path, int oflag, ...);
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int openat(int fd, const char* path, int oflag, ...);
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int posix_fadvise(int fd, off_t offset, off_t len, int advice);
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int posix_fallocate(int fd, off_t offset, off_t len);
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__END_DECLS
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#endif
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