file Struct Reference

An open file (POSIX's "open file description", fs/file.c). More...

#include <vfs.h>

Data Structures
union	[union].__unnamed0__

Data Fields
union
off_t	offset
int	flags
struct file_lock *	lock
int	ref

Detailed Description

An open file (POSIX's "open file description", fs/file.c).

There's one for each open(), pipe(), socket() or accept(), with its offset and status flags, shared by the descriptors that dup() and fork() copy.

Definition at line 157 of file vfs.h.

Field Documentation

@363274363361340240313237344266261037012355002377

union file::[union].__unnamed0__ file

flags

int file::flags

Definition at line 164 of file vfs.h.

Referenced by at_lookup(), at_uio(), copy_fds(), do_openat(), fd_vnode(), nonblock(), pipefs_fifo_open(), pipefs_pipe(), posix_file_open(), posix_file_read(), posix_file_readdir(), posix_file_write(), proc_fd_install(), socket_accept(), socket_bind(), socket_can_read(), socket_can_write(), socket_connect(), socket_create(), socket_getname(), socket_getsockopt(), socket_inet_create(), socket_inet_recv(), socket_ioctl(), socket_listen(), socket_recv(), socket_send(), socket_setsockopt(), socket_shutdown(), socket_shutdown_dir(), socket_tcp_accept(), socket_tcp_create(), socket_unix_accept(), socket_unix_create(), socket_unix_recv(), socket_unix_send(), sys_fchdir(), sys_fcntl(), sys_fstat(), sys_ftruncate(), sys_ioctl(), sys_isatty(), sys_lseek(), sys_mmap(), sys_readdir(), tty_open(), vfs_file_can_read(), vfs_file_can_write(), vfs_file_close(), vfs_file_flock(), vfs_file_open(), vfs_file_read(), vfs_file_trunc(), vfs_file_wait_queue(), vfs_file_write(), and vfs_perms_check().

lock

struct file_lock* file::lock

Definition at line 167 of file vfs.h.

Referenced by vfs_file_flock(), and vfs_file_lock_release().

offset

off_t file::offset

Definition at line 163 of file vfs.h.

Referenced by cpio_eof(), posix_file_eof(), posix_file_lseek(), posix_file_read(), posix_file_readdir(), posix_file_write(), socket_tcp_accept(), socket_unix_accept(), socket_unix_can_read(), socket_unix_can_write(), socket_unix_connect(), socket_unix_recv(), socket_unix_send(), socket_unix_wait_queue(), sys_lseek(), tmpfs_file_can_read(), tmpfs_file_eof(), and unix_conn_shut().

ref

int file::ref

Definition at line 170 of file vfs.h.

Referenced by file_new(), file_put(), file_ref(), and sys_fchdir().

---

The documentation for this struct was generated from the following file:

• kernel/include/fs/vfs.h