Module std::io

Traits, helpers, and type definitions for core I/O functionality.

Modules

prelude

The I/O Prelude

Structs

BufReader	Wraps a Read and buffers input from it
BufWriter	Wraps a Writer and buffers output to it
Bytes	A bridge from implementations of Read to an Iterator of u8.
Chain	Adaptor to chain together two instances of Read.
Cursor	A Cursor is a type which wraps a non-I/O object to provide a Seek implementation.
Empty	A reader which is always at EOF.
Error	The error type for I/O operations of the Read, Write, Seek, and associated traits.
IntoInnerError	An error returned by into_inner which combines an error that happened while writing out the buffer, and the buffered writer object which may be used to recover from the condition.
LineWriter	Wraps a Writer and buffers output to it, flushing whenever a newline (0x0a, '\n') is detected.
Lines	An iterator over the lines of an instance of BufRead split on a newline byte.
Repeat	A reader which infinitely yields one byte.
Sink	A writer which will move data into the void.
Split	An iterator over the contents of an instance of BufRead split on a particular byte.
Stderr	A handle to the standard error stream of a process.
StderrLock	A locked reference to the a Stderr handle.
Stdin	A handle to the standard input stream of a process.
StdinLock	A locked reference to the a Stdin handle.
Stdout	A handle to the global standard output stream of the current process.
StdoutLock	A locked reference to the a Stdout handle.
Take	Reader adaptor which limits the bytes read from an underlying reader.
Broadcast	[Unstable] A Write adaptor which will write data to multiple locations.
BufStream	[Unstable] Wraps a Stream and buffers input and output to and from it.
Chars	[Unstable] A bridge from implementations of Read to an Iterator of char.
Tee	[Unstable] An adaptor which will emit all read data to a specified writer as well.

Enums

ErrorKind	A list specifying general categories of I/O error.
SeekFrom	Enumeration of possible methods to seek within an I/O object.
CharsError	[Unstable] An enumeration of possible errors that can be generated from the Chars adapter.

Traits

BufRead	A BufRead is a type of reader which has some form of internal buffering to allow certain kinds of reading operations to be more optimized than others.
Read	A trait for objects which are byte-oriented sources.
Seek	An object implementing Seek internally has some form of cursor which can be moved within a stream of bytes.
Write	A trait for objects which are byte-oriented sinks.

Functions

copy	Copies the entire contents of a reader into a writer.
empty	Creates an instance of an empty reader.
repeat	Creates an instance of a reader that infinitely repeats one byte.
sink	Creates an instance of a writer which will successfully consume all data.
stderr	Constructs a new reference to the standard error stream of a process.
stdin	Creates a new handle to the global standard input stream of this process.
stdout	Constructs a new reference to the standard output of the current process.

Type Definitions

Result

A type for results generated by I/O related functions where the Err type is hard-wired to io::Error.