Module rustix::io

I/O operations.

Modules

epoll

epoll support.

Structs

DupFlags

O_* constants for use with dup2.

Errno

The error type for rustix APIs.

EventfdFlags

The EFD_* flags accepted by eventfd.

IoSlice

A buffer type used with Write::write_vectored.

IoSliceMut

A buffer type used with Read::read_vectored.

OwnedFd

A wrapper around io_lifetimes::OwnedFd which closes the file descriptor using rustix’s own close rather than libc’s close.

PipeFlags

O_* constants for use with pipe_with.

PollFd

struct pollfd—File descriptor and flags for use with poll.

PollFlags

POLL* flags for use with poll.

ReadWriteFlags

RWF_* constants for use with preadv2 and pwritev2.

Enums

SeekFrom

Enumeration of possible methods to seek within an I/O object.

Constants

PIPE_BUF

PIPE_BUF—The maximum length at which writes to a pipe are atomic.

Functions

close^⚠

close(raw_fd)—Closes a RawFd directly.

dup

dup(fd)—Creates a new OwnedFd instance that shares the same underlying file description as fd.

dup2

dup2(fd, new)—Changes the file description of a file descriptor.

dup3

dup3(fd, new, flags)—Changes the file description of a file descriptor, with flags.

eventfd

eventfd(initval, flags)—Creates a file descriptor for event notification.

ioctl_blkpbszget

ioctl(fd, BLKPBSZGET)—Returns the physical block size of a block device.

ioctl_blksszget

ioctl(fd, BLKSSZGET)—Returns the logical block size of a block device.

ioctl_fionbio

ioctl(fd, FIONBIO, &value)—Enables or disables non-blocking mode.

ioctl_fionread

ioctl(fd, FIONREAD)—Returns the number of bytes ready to be read.

ioctl_tiocexcl

ioctl(fd, TIOCEXCL)—Enables exclusive mode on a terminal.

ioctl_tiocnxcl

ioctl(fd, TIOCNXCL)—Disables exclusive mode on a terminal.

is_read_write

Returns a pair of booleans indicating whether the file descriptor is readable and/or writable, respectively.

pipe

pipe()—Creates a pipe.

pipe_with

pipe2(flags)—Creates a pipe, with flags.

poll

poll(self.fds, timeout)

pread

pread(fd, buf, offset)—Reads from a file at a given position.

preadv

preadv(fd, bufs, offset)—Reads from a file at a given position into multiple buffers.

preadv2

preadv2(fd, bufs, offset, flags)—Reads data, with several options.

proc_self_fdprocfs

Returns a handle to Linux’s /proc/self/fd directory.

proc_self_fdinfo_fdprocfs

Returns a handle to a Linux /proc/self/fdinfo/<fd> file.

proc_self_mapsprocfs

Returns a handle to a Linux /proc/self/maps file.

proc_self_pagemapprocfs

Returns a handle to a Linux /proc/self/pagemap file.

pwrite

pwrite(fd, bufs)—Writes to a file at a given position.

pwritev

pwritev(fd, bufs, offset)—Writes to a file at a given position from multiple buffers.

pwritev2

pwritev2(fd, bufs, offset, flags)—Writes data, with several options.

read

read(fd, buf)—Reads from a stream.

readv

readv(fd, bufs)—Reads from a stream into multiple buffers.

stderr^⚠

STDERR_FILENO—Standard error, borrowed.

stdin^⚠

STDIN_FILENO—Standard input, borrowed.

stdout^⚠

STDOUT_FILENO—Standard output, borrowed.

take_stderr^⚠

STDERR_FILENO—Standard error, owned.

take_stdin^⚠

STDIN_FILENO—Standard input, owned.

take_stdout^⚠

STDOUT_FILENO—Standard output, owned.

with_retrying

Call f until it either succeeds or fails other than Errno::INTR.

write

write(fd, buf)—Writes to a stream.

writev

writev(fd, bufs)—Writes to a stream from multiple buffers.

Type Definitions

Result

A specialized Result type for rustix APIs.