dentry.c File Reference

#include "mos/filesystem/dentry.h"
#include "mos/assert.h"
#include "mos/filesystem/inode.h"
#include "mos/filesystem/mount.h"
#include "mos/filesystem/vfs.h"
#include "mos/filesystem/vfs_types.h"
#include "mos/filesystem/vfs_utils.h"
#include "mos/io/io.h"
#include "mos/lib/sync/spinlock.h"
#include "mos/syslog/printk.h"
#include "mos/tasks/process.h"
#include "mos/tasks/task_types.h"
#include <mos/filesystem/fs_types.h>
#include <mos/lib/structures/hashmap_common.h>
#include <mos_stdio.h>
#include <mos_stdlib.h>
#include <mos_string.h>

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Functions
static dentry_t *	dentry_resolve_lastseg (dentry_t *parent, char *leaf, lastseg_resolve_flags_t flags, bool *symlink_resolved)
static dentry_t *	dentry_resolve_follow_symlink (dentry_t *dentry, lastseg_resolve_flags_t flags)
static dentry_t *	dentry_resolve_to_parent (dentry_t *base_dir, dentry_t *root_dir, const char *original_path, char **last_seg_out)
	Lookup the parent directory of a given path, and return the last segment of the path in last_seg_out.
void	dentry_attach (dentry_t *d, inode_t *inode)
	Attach an inode to a dentry.
void	dentry_detach (dentry_t *d)
	Detach the inode from a dentry.
dentry_t *	dentry_from_fd (fd_t fd)
	Get the dentry from a file descriptor.
dentry_t *	dentry_lookup_child (dentry_t *parent, const char *name)
	Get a child dentry from a parent dentry.
dentry_t *	dentry_resolve (dentry_t *starting_dir, dentry_t *root_dir, const char *path, lastseg_resolve_flags_t flags)
	Lookup a path in the filesystem.
static void	dirter_add (vfs_listdir_state_t *state, u64 ino, const char *name, size_t name_len, file_type_t type)
void	vfs_populate_listdir_buf (dentry_t *dir, vfs_listdir_state_t *state)
	List the contents of a directory.

Function Documentation

dentry_resolve_lastseg()

static dentry_t * dentry_resolve_lastseg ( dentry_t * parent, char * leaf, lastseg_resolve_flags_t flags, bool * symlink_resolved )

static

Definition at line 210 of file dentry.c.

Referenced by dentry_resolve(), and dentry_resolve_follow_symlink().

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dentry_resolve_follow_symlink()

static dentry_t * dentry_resolve_follow_symlink ( dentry_t * dentry, lastseg_resolve_flags_t flags )

static

Definition at line 166 of file dentry.c.

Referenced by dentry_resolve_lastseg(), and dentry_resolve_to_parent().

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dentry_resolve_to_parent()

static dentry_t * dentry_resolve_to_parent ( dentry_t * base_dir, dentry_t * root_dir, const char * original_path, char ** last_seg_out )

static

Lookup the parent directory of a given path, and return the last segment of the path in last_seg_out.

Parameters

base_dir	A directory to start the lookup from
root_dir	The root directory of the filesystem, the lookup will not go above this directory
original_path	The path to lookup
last_seg_out	The last segment of the path will be returned in this parameter, the caller is responsible for freeing it

Returns

dentry_t* The parent directory of the path, or NULL if the path is invalid, the dentry will be referenced

Definition at line 47 of file dentry.c.

Referenced by dentry_resolve(), and dentry_resolve_follow_symlink().

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dirter_add()

static void dirter_add ( vfs_listdir_state_t * state, u64 ino, const char * name, size_t name_len, file_type_t type )

static

Definition at line 434 of file dentry.c.

Referenced by vfs_populate_listdir_buf().

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