fcntl.h File Reference

File control APIs. More...

#include <tinyara/config.h>
#include <sys/types.h>
#include <stdint.h>

Include dependency graph for fcntl.h:

Go to the source code of this file.

Data Structures
struct	flock

Macros
#define	O_RDONLY   (1 << 0) /* Open for read access (only) */
#define	O_RDOK   O_RDONLY /* Read access is permitted (non-standard) */
#define	O_WRONLY   (1 << 1) /* Open for write access (only) */
#define	O_WROK   O_WRONLY /* Write access is permitted (non-standard) */
#define	O_RDWR   (O_RDOK|O_WROK) /* Open for both read & write access */
#define	O_CREAT   (1 << 2) /* Create file/sem/mq object */
#define	O_EXCL   (1 << 3) /* Name must not exist when opened */
#define	O_APPEND   (1 << 4) /* Keep contents, append to end */
#define	O_TRUNC   (1 << 5) /* Delete contents */
#define	O_NONBLOCK   (1 << 6) /* Don't wait for data */
#define	O_NDELAY   O_NONBLOCK /* Synonym for O_NONBLOCK */
#define	O_SYNC   (1 << 7) /* Synchronize output on write */
#define	O_DSYNC   O_SYNC /* Equivalent to OSYNC in TinyAra */
#define	O_BINARY   (1 << 8) /* Open the file in binary (untranslated) mode. */
#define	O_RSYNC   0 /* Synchronize input on read */
#define	O_ACCMODE   O_RDWR /* Mask for access mode */
#define	O_NOCTTY   0 /* Required by POSIX */
#define	O_TEXT   0 /* Open the file in text (translated) mode. */
#define	_O_MAXBIT   8
#define	FNDELAY   O_NONBLOCK /* Don't wait for data */
#define	FNONBLOCK   O_NONBLOCK /* Don't wait for data */
#define	FAPPEND   O_APPEND /* Keep contents, append to end */
#define	FSYNC   O_SYNC /* Synchronize output on write */
#define	FASYNC   0 /* No counterpart in TinyAra */
#define	FFCNTL   (FNONBLOCK | FNDELAY | FAPPEND | FSYNC | FASYNC)
#define	F_DUPFD   0 /* Duplicate a file descriptor */
#define	F_GETFD   1 /* Read the file descriptor flags */
#define	F_GETFL   2 /* Read the file status flags */
#define	F_GETLEASE   3 /* Indicates what type of lease is held on fd (linux) */
#define	F_GETLK   4 /* Check if we could place a lock */
#define	F_GETOWN   5 /* Get the pid receiving SIGIO and SIGURG signals for fd */
#define	F_GETSIG   6 /* Get the signal sent */
#define	F_NOTIFY   7 /* Provide notification when directory referred to by fd changes (linux) */
#define	F_SETFD   8 /* Set the file descriptor flags to value */
#define	F_SETFL   9 /* Set the file status flags to the value */
#define	F_SETLEASE   10 /* Set or remove file lease (linux) */
#define	F_SETLK   11 /* Acquire or release a lock on range of bytes */
#define	F_SETLKW   12 /* Like F_SETLK, but wait for lock to become available */
#define	F_SETOWN   13 /* Set pid that will receive SIGIO and SIGURG signals for fd */
#define	F_SETSIG   14 /* Set the signal to be sent */
#define	F_RDLCK   0 /* Take out a read lease */
#define	F_WRLCK   1 /* Take out a write lease */
#define	F_UNLCK   2 /* Remove a lease */
#define	FD_CLOEXEC   1
#define	DN_ACCESS   0 /* A file was accessed */
#define	DN_MODIFY   1 /* A file was modified */
#define	DN_CREATE   2 /* A file was created */
#define	DN_DELETE   3 /* A file was unlinked */
#define	DN_RENAME   4 /* A file was renamed */
#define	DN_ATTRIB   5 /* Attributes of a file were changed */
#define	creat(path, mode)   open(path, O_WRONLY|O_CREAT|O_TRUNC, mode)
#define	EXTERN   extern

Functions
int	open (const char *path, int oflag,...)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...
int	fcntl (int fd, int cmd,...)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

Detailed Description

File control APIs.

Definition in file fcntl.h.