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posix-next API 0.1.0
Out-of-tree Zephyr POSIX module
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posix-next API 0.1.0
Out-of-tree Zephyr POSIX module
|
POSIX file control options (<fcntl.h>) More...
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Data Structures | |
| struct | flock |
| File segment locking structure used with F_GETLK, F_SETLK, and F_SETLKW. More... | |
Macros | |
| #define | F_DUPFD ZVFS_F_DUPFD |
| Duplicate a file descriptor to the lowest available descriptor >= arg. | |
| #define | F_DUPFD_CLOEXEC ZVFS_F_DUPFD_CLOEXEC |
| Duplicate a file descriptor with the close-on-exec flag set. | |
| #define | F_GETFD ZVFS_F_GETFD |
| Get file descriptor flags. | |
| #define | F_SETFD ZVFS_F_SETFD |
| Set file descriptor flags. | |
| #define | F_GETFL ZVFS_F_GETFL |
| Get file status flags and file access modes. | |
| #define | F_SETFL ZVFS_F_SETFL |
| Set file status flags. | |
| #define | F_GETLK ZVFS_F_GETLK |
| Get the first lock that blocks the lock described by the argument. | |
| #define | F_SETLK ZVFS_F_SETLK |
| Set or clear a file segment lock (non-blocking). | |
| #define | F_SETLKW ZVFS_F_SETLKW |
| Set or clear a file segment lock (blocking). | |
| #define | F_GETOWN ZVFS_F_GETOWN |
| Get the process or process group ID that receives SIGIO/SIGURG signals. | |
| #define | F_SETOWN ZVFS_F_SETOWN |
| Set the process or process group ID that receives SIGIO/SIGURG signals. | |
| #define | FD_CLOEXEC ZVFS_FD_CLOEXEC |
| Close-on-exec flag for file descriptors. | |
| #define | F_RDLCK ZVFS_F_RDLCK |
| Lock type: shared read lock. | |
| #define | F_UNLCK ZVFS_F_UNLCK |
| Lock type: unlock (release a lock). | |
| #define | F_WRLCK ZVFS_F_WRLCK |
| Lock type: exclusive write lock. | |
| #define | SEEK_CUR ZVFS_SEEK_CUR |
| Set offset relative to current file position. | |
| #define | SEEK_END ZVFS_SEEK_END |
| Set offset relative to end of file. | |
| #define | SEEK_SET ZVFS_SEEK_SET |
| Set offset to absolute position. | |
| #define | O_CLOEXEC ZVFS_O_CLOEXEC |
| Close file descriptor on exec (open() flag). | |
| #define | O_CREAT ZVFS_O_CREAT |
| Create file if it does not exist (open() flag). | |
| #define | O_DIRECTORY ZVFS_O_DIRECTORY |
| Fail if path does not name a directory (open() flag). | |
| #define | O_EXCL ZVFS_O_EXCL |
| Exclusive creation: fail if file already exists (open() flag, with O_CREAT). | |
| #define | O_NOCTTY ZVFS_O_NOCTTY |
| Do not assign a controlling terminal (open() flag). | |
| #define | O_NOFOLLOW ZVFS_O_NOFOLLOW |
| Do not follow symbolic links (open() flag). | |
| #define | O_TRUNC ZVFS_O_TRUNC |
| Truncate file to zero length on open (open() flag). | |
| #define | O_TTY_INIT ZVFS_O_TTY_INIT |
| Initialise terminal to conforming state (open() flag). | |
| #define | O_APPEND ZVFS_O_APPEND |
| Write operations append to end of file. | |
| #define | O_DSYNC ZVFS_O_DSYNC |
| Write I/O completes as defined for synchronised I/O data integrity. | |
| #define | O_NONBLOCK ZVFS_O_NONBLOCK |
| Non-blocking I/O mode. | |
| #define | O_RSYNC ZVFS_O_RSYNC |
| Synchronised read I/O (same as O_SYNC for reads). | |
| #define | O_SYNC ZVFS_O_SYNC |
| Write I/O completes as defined for synchronised I/O file integrity. | |
| #define | O_EXEC ZVFS_O_EXEC |
| Open for execute only (no read, write, or search). | |
| #define | O_RDONLY ZVFS_O_RDONLY |
| Open for reading only. | |
| #define | O_RDWR ZVFS_O_RDWR |
| Open for reading and writing. | |
| #define | O_SEARCH ZVFS_O_SEARCH |
| Open directory for search only. | |
| #define | O_WRONLY ZVFS_O_WRONLY |
| Open for writing only. | |
| #define | O_ACCMODE (ZVFS_O_RDONLY | ZVFS_O_RDWR | ZVFS_O_WRONLY) |
| Mask to extract the file access mode from open flags. | |
| #define | AT_FDCWD ZVFS_AT_FDCWD |
| Equivalent to "." in the current directory (used with *at() functions). | |
| #define | AT_EACCESS ZVFS_AT_EACCESS |
| Use effective IDs (faccessat flag). | |
| #define | AT_SYMLINK_NOFOLLOW ZVFS_AT_SYMLINK_NOFOLLOW |
| Do not follow symbolic links (*at flag). | |
| #define | AT_SYMLINK_FOLLOW ZVFS_AT_SYMLINK_FOLLOW |
| Follow symbolic links (*at flag). | |
| #define | AT_REMOVEDIR ZVFS_AT_REMOVEDIR |
| Remove directory (unlinkat flag). | |
| #define | POSIX_FADV_NORMAL ZVFS_POSIX_FADV_NORMAL |
| No advice (default access pattern). | |
| #define | POSIX_FADV_RANDOM ZVFS_POSIX_FADV_RANDOM |
| Data will be accessed in random order. | |
| #define | POSIX_FADV_SEQUENTIAL ZVFS_POSIX_FADV_SEQUENTIAL |
| Data will be accessed sequentially. | |
| #define | POSIX_FADV_WILLNEED ZVFS_POSIX_FADV_WILLNEED |
| Data will be needed in the near future. | |
| #define | POSIX_FADV_DONTNEED ZVFS_POSIX_FADV_DONTNEED |
| Data will not be accessed in the near future. | |
| #define | POSIX_FADV_NOREUSE ZVFS_POSIX_FADV_NOREUSE |
| Data will be accessed only once. | |
| #define | _FLOCK_DECLARED |
| #define | __flock_defined |
| #define | _MODE_T_DECLARED |
| #define | __mode_t_defined |
| #define | _OFF_T_DECLARED |
| #define | __off_t_defined |
| #define | _PID_T_DECLARED |
| #define | __pid_t_defined |
Typedefs | |
| typedef int | mode_t |
| File permission bits type. | |
| typedef long | off_t |
| File offset type. | |
| typedef int | pid_t |
| Process ID type. | |
Functions | |
| int | creat (const char *path, mode_t mode) |
| Create or truncate a file. | |
| int | fcntl (int fildes, int cmd,...) |
| Perform file control operations on an open file descriptor. | |
| int | open (const char *name, int flags,...) |
| Open or create a file. | |
| int | openat (int fd, const char *path, int oflag,...) |
| Open or create a file relative to a directory file descriptor. | |
| int | posix_fadvise (int fd, off_t offset, off_t len, int advice) |
| Declare an expected access pattern for a file region. | |
| int | posix_fallocate (int fd, off_t offset, off_t len) |
| Guarantee that disk space is allocated for a file region. | |
POSIX file control options (<fcntl.h>)
Defines the file-control commands, file-descriptor flags, file-access mode flags, and related types used with open(), creat(), and fcntl().
Definition in file fcntl.h.
1.9.8