[−][src]Struct filedescriptor::FileDescriptor
FileDescriptor
is a thin wrapper on top of the OwnedHandle
type that
exposes the ability to Read and Write to the platform RawFileDescriptor
.
Methods
impl FileDescriptor
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pub fn new<F: IntoRawFileDescriptor>(f: F) -> Self
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Create a new descriptor from some object that is convertible into
the system RawFileDescriptor
type. This consumes the parameter
and replaces it with a FileDescriptor
instance.
pub fn dup<F: AsRawFileDescriptor>(f: &F) -> Fallible<Self>
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Attempt to duplicate the underlying handle from an object that is
representable as the systemm RawFileDescriptor
type and return a
FileDescriptor
wrapped around the duplicate. Since the duplication
requires kernel resources that may not be available, this is a
potentially fallible operation.
The returned handle has a separate lifetime from the source, but
references the same object at the kernel level.
pub fn try_clone(&self) -> Fallible<Self>
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Attempt to duplicate the underlying handle and return a
FileDescriptor
wrapped around the duplicate. Since the duplication
requires kernel resources that may not be available, this is a
potentially fallible operation.
The returned handle has a separate lifetime from the source, but
references the same object at the kernel level.
pub fn as_stdio(&self) -> Fallible<Stdio>
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A convenience method for creating a std::process::Stdio
object
to be used for eg: redirecting the stdio streams of a child
process. The Stdio
is created using a duplicated handle so
that the source handle remains alive.
Trait Implementations
impl Debug for FileDescriptor
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impl Read for FileDescriptor
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fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>
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fn read_vectored(&mut self, bufs: &mut [IoSliceMut]) -> Result<usize, Error>
1.36.0[src]
Like read
, except that it reads into a slice of buffers. Read more
unsafe fn initializer(&self) -> Initializer
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read_initializer
)Determines if this Read
er can work with buffers of uninitialized memory. Read more
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>
1.0.0[src]
Read all bytes until EOF in this source, placing them into buf
. Read more
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
1.0.0[src]
Read all bytes until EOF in this source, appending them to buf
. Read more
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
1.6.0[src]
Read the exact number of bytes required to fill buf
. Read more
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Read
. Read more
fn bytes(self) -> Bytes<Self>
1.0.0[src]
Transforms this Read
instance to an [Iterator
] over its bytes. Read more
fn chain<R>(self, next: R) -> Chain<Self, R> where
R: Read,
1.0.0[src]
R: Read,
Creates an adaptor which will chain this stream with another. Read more
fn take(self, limit: u64) -> Take<Self>
1.0.0[src]
Creates an adaptor which will read at most limit
bytes from it. Read more
impl Write for FileDescriptor
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fn write(&mut self, buf: &[u8]) -> Result<usize, Error>
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fn flush(&mut self) -> Result<(), Error>
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fn write_vectored(&mut self, bufs: &[IoSlice]) -> Result<usize, Error>
1.36.0[src]
Like write
, except that it writes from a slice of buffers. Read more
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
1.0.0[src]
Attempts to write an entire buffer into this writer. Read more
fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>
1.0.0[src]
Writes a formatted string into this writer, returning any error encountered. Read more
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Write
. Read more
impl AsRawHandle for FileDescriptor
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fn as_raw_handle(&self) -> RawHandle
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impl FromRawHandle for FileDescriptor
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ⓘImportant traits for FileDescriptorunsafe fn from_raw_handle(handle: RawHandle) -> FileDescriptor
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impl IntoRawHandle for FileDescriptor
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fn into_raw_handle(self) -> RawHandle
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Auto Trait Implementations
impl Send for FileDescriptor
impl !Sync for FileDescriptor
Blanket Implementations
impl<T> AsRawFileDescriptor for T where
T: AsRawHandle,
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T: AsRawHandle,
fn as_raw_file_descriptor(&Self) -> *mut c_void
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impl<T> IntoRawFileDescriptor for T where
T: IntoRawHandle,
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T: IntoRawHandle,
fn into_raw_file_descriptor(Self) -> *mut c_void
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impl<T> FromRawFileDescriptor for T where
T: FromRawHandle,
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T: FromRawHandle,
unsafe fn from_raw_file_descrptor(*mut c_void) -> T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,