Module io

Runtime interface for IO-like operations.

Structs

• IoFlags
  Possible flags for IO operations.

Enums

• IoError
  Possible error states for IO
• 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. 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_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. 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_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.