dentry.cpp File Reference

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

Include dependency graph for dentry.cpp:

Go to the source code of this file.

Functions
static PtrResult< dentry_t >	dentry_resolve_lastseg (dentry_t *parent, mos::string leaf, const LastSegmentResolveFlags flags, bool *is_symlink)
static PtrResult< dentry_t >	dentry_resolve_follow_symlink (dentry_t *dentry, LastSegmentResolveFlags flags)
static std::pair< PtrResult< dentry_t >, std::optional< mos::string > >	dentry_resolve_to_parent (dentry_t *base_dir, dentry_t *root_dir, mos::string_view path)
	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.
PtrResult< dentry_t >	dentry_from_fd (fd_t fd)
	Get the dentry from a file descriptor.
PtrResult< dentry_t >	dentry_lookup_child (dentry_t *parent, mos::string_view name)
	Get a child dentry from a parent dentry.
PtrResult< dentry_t >	dentry_resolve (dentry_t *starting_dir, dentry_t *root_dir, mos::string_view path, LastSegmentResolveFlags flags)
	Lookup a path in the filesystem.
static void	dirter_add (vfs_listdir_state_t *state, u64 ino, mos::string_view name, 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()

PtrResult< dentry_t > dentry_resolve_lastseg ( dentry_t * parent, mos::string leaf, const LastSegmentResolveFlags flags, bool * is_symlink )

static

Definition at line 184 of file dentry.cpp.

Referenced by dentry_resolve(), and dentry_resolve_follow_symlink().

Here is the call graph for this function:

dentry_resolve_follow_symlink()

PtrResult< dentry_t > dentry_resolve_follow_symlink ( dentry_t * dentry, LastSegmentResolveFlags flags )

static

Definition at line 142 of file dentry.cpp.

Referenced by dentry_resolve_lastseg(), and dentry_resolve_to_parent().

Here is the call graph for this function:

dentry_resolve_to_parent()

std::pair< PtrResult< dentry_t >, std::optional< mos::string > > dentry_resolve_to_parent ( dentry_t * base_dir, dentry_t * root_dir, mos::string_view path )

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 48 of file dentry.cpp.

Referenced by dentry_resolve(), and dentry_resolve_follow_symlink().

Here is the call graph for this function:

dirter_add()

void dirter_add ( vfs_listdir_state_t * state, u64 ino, mos::string_view name, file_type_t type )

static

Definition at line 405 of file dentry.cpp.

Referenced by vfs_populate_listdir_buf().

Here is the call graph for this function: