A pair of file descriptors.

• Descriptors are assumed to be for input and output, but it is not enforced.
• This class is usefull in conjunction with basic_fildesbuf when different file descriptors are used for writing and reading from the stream.

Methods

• swap(fildes_pair & rhs) -> void

  Swap with rhs.

• close() -> void

  Close both file descriptors.

• out() const -> const fildes &

  Get output file descriptor.

• in() const -> const fildes &

  Get input file descriptor.

• out() -> fildes &

  Get output file descriptor.

• in() -> fildes &

  Get input file descriptor.

• operator=(fildes_pair & rhs) -> fildes_pair &
• operator=(fildes_pair && rhs) -> fildes_pair &

  Move-assignment.

• fildes_pair(fildes_pair && rhs)

  Move-constructor.

• fildes_pair(two_way_pipe && pipe)explicit

  Construct a pair of file descriptors from bidirectional pipe pipe.

• fildes_pair(pipe && pipe)explicit

  Construct a pair of file descriptors from pipe pipe.

• fildes_pair(fildes && in, fildes && out)

  Construct a pair of file descriptors from in and out.

• ~fildes_pair()
• fildes_pair()

Specialisation of streambuf_traits for fildes_pair.

Types

• using char_type = char

  Character type.

Methods

• in_avail(fildes_pair & pair) -> std::streamsize

  Check how many bytes are available for reading in input file descriptor of pair.

• is_blocking(const fildes_pair & pair) -> bool

  Check if the source/sink is blocking.

• read(fildes_pair & pair, char_type * s, std::streamsize n) -> std::streamsize

  Read n bytes to array pointed by s from input file descriptor pair.

• write(fildes_pair & pair, const char_type * s, std::streamsize n) -> std::streamsize

  Write n bytes from array pointed by s to output file descriptor of pair.

Overload of std::swap for fildes_pair.