Struct cap_async_std::fs::Dir[−][src]

pub struct Dir { /* fields omitted */ }

A reference to an open directory on a filesystem.

This does not directly correspond to anything in async_std, however its methods correspond to the functions in async_std::fs and the constructor methods for async_std::fs::File.

Unlike async_std::fs, this API’s canonicalize returns a relative path since absolute paths don’t interoperate well with the capability model.

Implementations

`impl Dir`[src]

`pub unsafe fn from_std_file(std_file: File) -> Self`[src]

Constructs a new instance of Self from the given async_std::fs::File.

To prevent race conditions on Windows, the file must be opened without FILE_SHARE_DELETE.

Safety

async_std::fs::File is not sandboxed and may access any path that the host process has access to.

`pub fn into_std_file(self) -> File`[src]

Consumes self and returns an async_std::fs::File.

`pub fn open<P: AsRef<Path>>(&self, path: P) -> Result<File>`[src]

Attempts to open a file in read-only mode.

This corresponds to async_std::fs::File::open, but only accesses paths relative to self.

`pub fn open_with<P: AsRef<Path>>( &self, path: P, options: &OpenOptions ) -> Result<File>`[src]

Opens a file at path with the options specified by self.

This corresponds to async_std::fs::OpenOptions::open.

Instead of being a method on OpenOptions, this is a method on Dir, and it only accesses paths relative to self.

`pub fn open_dir<P: AsRef<Path>>(&self, path: P) -> Result<Self>`[src]

Attempts to open a directory.

`pub fn create_dir<P: AsRef<Path>>(&self, path: P) -> Result<()>`[src]

Creates a new, empty directory at the provided path.

This corresponds to async_std::fs::create_dir, but only accesses paths relative to self.

`pub fn create_dir_all<P: AsRef<Path>>(&self, path: P) -> Result<()>`[src]

Recursively create a directory and all of its parent components if they are missing.

This corresponds to async_std::fs::create_dir_all, but only accesses paths relative to self.

`pub fn create_dir_with<P: AsRef<Path>>( &self, path: P, dir_builder: &DirBuilder ) -> Result<()>`[src]

Creates the specified directory with the options configured in this builder.

This corresponds to async_std::fs::DirBuilder::create.

`pub fn create<P: AsRef<Path>>(&self, path: P) -> Result<File>`[src]

Opens a file in write-only mode.

This corresponds to async_std::fs::File::create, but only accesses paths relative to self.

`pub fn canonicalize<P: AsRef<Path>>(&self, path: P) -> Result<PathBuf>`[src]

Returns the canonical form of a path with all intermediate components normalized and symbolic links resolved.

This corresponds to async_std::fs::canonicalize, but instead of returning an absolute path, returns a path relative to the directory represented by self.

`pub async fn copy<P: AsRef<Path>, Q: AsRef<Path>>( &self, from: P, to_dir: &Self, to: Q ) -> Result<u64>`[src]

Copies the contents of one file to another. This function will also copy the permission bits of the original file to the destination file.

This corresponds to async_std::fs::copy, but only accesses paths relative to self.

`pub fn hard_link<P: AsRef<Path>, Q: AsRef<Path>>( &self, src: P, dst_dir: &Self, dst: Q ) -> Result<()>`[src]

Creates a new hard link on a filesystem.

This corresponds to async_std::fs::hard_link, but only accesses paths relative to self.

`pub fn metadata<P: AsRef<Path>>(&self, path: P) -> Result<Metadata>`[src]

Given a path, query the file system to get information about a file, directory, etc.

This corresponds to async_std::fs::metadata, but only accesses paths relative to self.

`pub fn entries(&self) -> Result<ReadDir>`[src]

Returns an iterator over the entries within self.

`pub fn read_dir<P: AsRef<Path>>(&self, path: P) -> Result<ReadDir>`[src]

Returns an iterator over the entries within a directory.

This corresponds to async_std::fs::read_dir, but only accesses paths relative to self.

`pub async fn read<P: AsRef<Path>>(&self, path: P) -> Result<Vec<u8>>`[src]

Read the entire contents of a file into a bytes vector.

This corresponds to async_std::fs::read, but only accesses paths relative to self.

`pub fn read_link<P: AsRef<Path>>(&self, path: P) -> Result<PathBuf>`[src]

Reads a symbolic link, returning the file that the link points to.

This corresponds to async_std::fs::read_link, but only accesses paths relative to self.

`pub async fn read_to_string<P: AsRef<Path>>(&self, path: P) -> Result<String>`[src]

Read the entire contents of a file into a string.

This corresponds to async_std::fs::read_to_string, but only accesses paths relative to self.

`pub fn remove_dir<P: AsRef<Path>>(&self, path: P) -> Result<()>`[src]

Removes an empty directory.

This corresponds to async_std::fs::remove_dir, but only accesses paths relative to self.

`pub async fn remove_dir_all<P: AsRef<Path>>(&self, path: P) -> Result<()>`[src]

Removes a directory at this path, after removing all its contents. Use carefully!

This corresponds to async_std::fs::remove_dir_all, but only accesses paths relative to self.

`pub fn remove_open_dir(self) -> Result<()>`[src]

Remove the directory referenced by self and consume self.

Note that even though this implementation works in terms of handles as much as possible, removal is not guaranteed to be atomic with respect to a concurrent rename of the directory.

`pub fn remove_open_dir_all(self) -> Result<()>`[src]

Removes the directory referenced by self, after removing all its contents, and consume self. Use carefully!

Note that even though this implementation works in terms of handles as much as possible, removal is not guaranteed to be atomic with respect to a concurrent rename of the directory.

`pub fn remove_file<P: AsRef<Path>>(&self, path: P) -> Result<()>`[src]

Removes a file from a filesystem.

This corresponds to async_std::fs::remove_file, but only accesses paths relative to self.

`pub fn rename<P: AsRef<Path>, Q: AsRef<Path>>( &self, from: P, to_dir: &Self, to: Q ) -> Result<()>`[src]

Rename a file or directory to a new name, replacing the original file if to already exists.

This corresponds to async_std::fs::rename, but only accesses paths relative to self.

`pub fn set_permissions<P: AsRef<Path>>( &self, path: P, perm: Permissions ) -> Result<()>`[src]

Changes the permissions found on a file or a directory.

This corresponds to async_std::fs::set_permissions, but only accesses paths relative to self. Also, on some platforms, this function may fail if the file or directory cannot be opened for reading or writing first.

`pub fn symlink_metadata<P: AsRef<Path>>(&self, path: P) -> Result<Metadata>`[src]

Query the metadata about a file without following symlinks.

This corresponds to async_std::fs::symlink_metadata, but only accesses paths relative to self.

`pub async fn write<P: AsRef<Path>, C: AsRef<[u8]>>( &self, path: P, contents: C ) -> Result<()>`[src]

Write a slice as the entire contents of a file.

This corresponds to async_std::fs::write, but only accesses paths relative to self.

`pub fn symlink<P: AsRef<Path>, Q: AsRef<Path>>( &self, src: P, dst: Q ) -> Result<()>`[src]

Creates a new symbolic link on a filesystem.

This corresponds to async_std::os::unix::fs::symlink, but only accesses paths relative to self.