Struct OpenOptions 

pub struct OpenOptions<Access: AccessMode, Open: OpenMode> { /* private fields */ }

Available on Linux only.

A builder struct to help with opening files, using customizable options and logical defaults. Available via File::options to avoid additional use statements.

Implementations

impl<A: AccessMode, O: OpenMode> OpenOptions<A, O>

pub fn new() -> OpenOptions<A, O>

pub const fn no_create(self) -> OpenOptions<A, NoCreate>

pub const fn create_if_missing(self) -> OpenOptions<A, CreateIfMissing>

pub const fn create_or_empty(self) -> OpenOptions<A, CreateOrEmpty>

pub const fn create(self) -> OpenOptions<A, Create>

pub const fn write_only(self) -> OpenOptions<WriteOnly, O>

pub const fn read_write(self) -> OpenOptions<ReadWrite, O>

pub const fn mode(&mut self, value: u16) -> &mut Self

pub const fn append(&mut self, value: bool) -> &mut Self

pub const fn force_sync(&mut self, value: bool) -> &mut Self

pub const fn update_access_time(&mut self, value: bool) -> &mut Self

pub const fn follow_links(&mut self, value: bool) -> &mut Self

pub const unsafe fn extra_flags(&mut self, value: i32) -> &mut Self

impl<A: AccessMode, O: Permanent> OpenOptions<A, O>

pub const fn read_only(self) -> OpenOptions<ReadOnly, O>

impl<A: Write, O: OpenMode> OpenOptions<A, O>

pub const fn create_temp(self) -> OpenOptions<A, CreateTemp>

pub const fn create_unlinked(self) -> OpenOptions<A, CreateUnlinked>

impl<A: AccessMode> OpenOptions<A, NoCreate>

pub fn open<P: Into<OwnedPath<Abs>>>( &self, file_path: P, ) -> Result<File<A>, OpenError>

pub fn open_rel<P: Into<OwnedPath<Rel>>>( &self, relative_to: &Directory, file_path: P, ) -> Result<File<A>, OpenError>

pub fn open_dir_entry( &self, dir_ent: &DirEntry<'_>, ) -> Result<File<A>, OpenError>

impl<A: AccessMode> OpenOptions<A, CreateIfMissing>

pub fn open<P: Into<OwnedPath<Abs>>>( &self, file_path: P, ) -> Result<File<A>, OpenError>

pub fn open_rel<P: Into<OwnedPath<Rel>>>( &self, relative_to: &Directory, file_path: P, ) -> Result<File<A>, OpenError>

pub fn open_dir_entry( &self, dir_ent: &DirEntry<'_>, ) -> Result<File<A>, OpenError>

impl<A: AccessMode> OpenOptions<A, CreateOrEmpty>

pub fn open<P: Into<OwnedPath<Abs>>>( &self, file_path: P, ) -> Result<File<A>, OpenError>

pub fn open_rel<P: Into<OwnedPath<Rel>>>( &self, relative_to: &Directory, file_path: P, ) -> Result<File<A>, OpenError>

pub fn open_dir_entry( &self, dir_ent: &DirEntry<'_>, ) -> Result<File<A>, OpenError>

impl<A: AccessMode> OpenOptions<A, Create>

pub fn open<P: Into<OwnedPath<Abs>>>( &self, file_path: P, ) -> Result<File<A>, CreateError>

pub fn open_rel<P: Into<OwnedPath<Rel>>>( &self, relative_to: &Directory, file_path: P, ) -> Result<File<A>, CreateError>

impl<A: AccessMode> OpenOptions<A, CreateTemp>

pub fn open<P: Into<OwnedPath<Abs>>>( &self, dir_path: P, ) -> Result<File<A>, TempError>

pub fn open_rel(&self, relative_to: &Directory) -> Result<File<A>, TempError>

impl<A: AccessMode> OpenOptions<A, CreateUnlinked>

pub fn open<P: Into<OwnedPath<Abs>>>( &self, dir_path: P, ) -> Result<File<A>, TempError>

pub fn open_rel(&self, relative_to: &Directory) -> Result<File<A>, TempError>

Trait Implementations

impl<Access: Clone + AccessMode, Open: Clone + OpenMode> Clone for OpenOptions<Access, Open>

fn clone(&self) -> OpenOptions<Access, Open>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<A: AccessMode, O: OpenMode> Debug for OpenOptions<A, O>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<A: AccessMode, O: OpenMode> Default for OpenOptions<A, O>

fn default() -> Self

Returns the “default value” for a type.