Module io

Runtime interface for IO-like operations.

Structs

Endpoint

IoCtx

IoFlags

Possible flags for IO operations.

Enums

EndpointKind

SeekFrom

Possible seek start points and offset.

Functions

twz_rt_fd_pread

Read a file descriptor into a buffer, up to buf.len() bytes. On success, returns the number of bytes actually read, which may be fewer than requested.

twz_rt_fd_pread_from

Read a file descriptor into a buffer, up to buf.len() bytes. On success, returns the number of bytes actually read, which may be fewer than requested.

twz_rt_fd_preadv

Read a file descriptor into a multiple buffers. On success, returns the number of bytes actually read, which may be fewer than requested. If offset is None, use the file descriptor’s internal position. If the file descriptor refers to a non-seekable file, and offset is Some, this function returns an error.

twz_rt_fd_pwrite

Write bytes from a buffer into a file descriptor, up to buf.len() bytes. On success, returns the number of bytes actually written, which may be fewer than requested.

twz_rt_fd_pwrite_to

Write bytes from a buffer into a file descriptor, up to buf.len() bytes. On success, returns the number of bytes actually written, which may be fewer than requested.

twz_rt_fd_pwritev

Write multiple buffers into a file descriptor. On success, returns the number of bytes actually written, which may be fewer than requested. If offset is None, use the file descriptor’s internal position. If the file descriptor refers to a non-seekable file, and offset is Some, this function returns an error.

twz_rt_fd_seek

Seek a file descriptor, changing the internal position.

Type Aliases

IoSlice

Type of an IO vec buffer and length.