Struct OpenOptions

pub struct OpenOptions<NeedMode: OpenMode> { /* private fields */ }

Encapsulates the various options for the open system call behind a builder API.

Use OPEN_READ_ONLY, OPEN_WRITE_ONLY, or OPEN_READ_WRITE as a starting value of this type and then refine as necessary using the methods to set additional flags.

Implementations

impl OpenOptions<OpenWithoutMode>

pub const fn read_only() -> Self

pub const fn write_only() -> Self

pub const fn read_write() -> Self

impl<NeedMode: OpenMode> OpenOptions<NeedMode>

pub const fn append(self) -> Self

pub const fn close_on_exec(self) -> Self

pub const fn create(self) -> OpenOptions<OpenWithMode>

pub const fn direct(self) -> Self

pub const fn directory(self) -> Self

pub const fn excl(self) -> Self

pub const fn no_atime(self) -> Self

pub const fn no_controlling_tty(self) -> Self

pub const fn no_follow_symlinks(self) -> Self

pub const fn nonblocking(self) -> Self

pub const fn path_only(self) -> Self

pub const fn sync(self) -> Self

pub const fn temp_file(self) -> OpenOptions<OpenWithMode>

pub const fn truncate(self) -> Self

pub const fn into_raw_flags(self) -> int

Convert the options wrapper into the corresponding raw flags value to use with the open system call.

Trait Implementations

impl<NeedMode: Clone + OpenMode> Clone for OpenOptions<NeedMode>

fn clone(&self) -> OpenOptions<NeedMode>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<NeedMode: OpenMode> Into<i32> for OpenOptions<NeedMode>

fn into(self) -> int

Converts this type into the (usually inferred) input type.

impl<NeedMode: PartialEq + OpenMode> PartialEq for OpenOptions<NeedMode>

fn eq(&self, other: &OpenOptions<NeedMode>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<NeedMode: Copy + OpenMode> Copy for OpenOptions<NeedMode>

impl<NeedMode: Eq + OpenMode> Eq for OpenOptions<NeedMode>

impl<NeedMode: OpenMode> StructuralPartialEq for OpenOptions<NeedMode>