vfs_ctx.c File Reference

#include <kernel/fs/vfs_ctx.h>
#include <kernel/fs/vfs.h>
#include <kernel/log/log.h>
#include <kernel/sched/thread.h>
#include <assert.h>
#include <string.h>
#include <sys/io.h>

Go to the source code of this file.

Functions
void	vfs_ctx_init (vfs_ctx_t *ctx, const path_t *cwd)
	Initialize a VFS context.
void	vfs_ctx_deinit (vfs_ctx_t *ctx)
	Deinitialize a VFS context.
file_t *	vfs_ctx_get_file (vfs_ctx_t *ctx, fd_t fd)
	Get a file from a VFS context.
uint64_t	vfs_ctx_get_cwd (vfs_ctx_t *ctx, path_t *outCwd)
uint64_t	vfs_ctx_set_cwd (vfs_ctx_t *ctx, const path_t *cwd)
	Set the current working directory of a VFS context.
	SYSCALL_DEFINE (SYS_CHDIR, uint64_t, const char *pathString)
fd_t	vfs_ctx_alloc_fd (vfs_ctx_t *ctx, file_t *file)
	Allocate a new file descriptor in a VFS context.
fd_t	vfs_ctx_set_fd (vfs_ctx_t *ctx, fd_t fd, file_t *file)
	Allocate a specific file descriptor in a VFS context.
uint64_t	vfs_ctx_free_fd (vfs_ctx_t *ctx, fd_t fd)
	Free a file descriptor in a VFS context.
	SYSCALL_DEFINE (SYS_CLOSE, uint64_t, fd_t fd)
fd_t	vfs_ctx_dup (vfs_ctx_t *ctx, fd_t oldFd)
	Duplicate a file descriptor in a VFS context.
	SYSCALL_DEFINE (SYS_DUP, uint64_t, fd_t oldFd)
fd_t	vfs_ctx_dup2 (vfs_ctx_t *ctx, fd_t oldFd, fd_t newFd)
	Duplicate a file descriptor in a VFS context to a specific file descriptor.
	SYSCALL_DEFINE (SYS_DUP2, uint64_t, fd_t oldFd, fd_t newFd)

Function Documentation

SYSCALL_DEFINE() [1/4]

SYSCALL_DEFINE	(	SYS_CHDIR	,
		uint64_t	,
		const char *	pathString
	)

Definition at line 121 of file vfs_ctx.c.

References ERR, PATH_DEFER, PATH_EMPTY, thread_t::process, sched_thread(), thread_copy_from_user_pathname(), vfs_ctx_set_cwd(), vfs_walk(), process_t::vfsCtx, and WALK_NONE.

SYSCALL_DEFINE() [2/4]

SYSCALL_DEFINE	(	SYS_CLOSE	,
		uint64_t	,
		fd_t	fd
	)

Definition at line 213 of file vfs_ctx.c.

References sched_process(), and vfs_ctx_free_fd().

SYSCALL_DEFINE() [3/4]

SYSCALL_DEFINE	(	SYS_DUP	,
		uint64_t	,
		fd_t	oldFd
	)

Definition at line 246 of file vfs_ctx.c.

References sched_process(), and vfs_ctx_dup().

SYSCALL_DEFINE() [4/4]

SYSCALL_DEFINE	(	SYS_DUP2	,
		uint64_t	,
		fd_t	oldFd,
		fd_t	newFd
	)

Definition at line 283 of file vfs_ctx.c.

References sched_process(), and vfs_ctx_dup2().