Two-way pipe implemented as two one-way pipes.

• The pipe is designed for communication between parent and child processes.

Methods

• swap(two_way_pipe & rhs) -> void

  Swap with rhs.

• validate() -> void

  Validate files descriptors in the calling process.

• close_unused() -> void

  Close unused file descriptors in the calling process.

• close_in_parent() -> void

  Close unused file descriptors in parent process.

• close_in_child() -> void

  Close unused file descriptors in child process.

• close() -> void

  Close all pipe file descriptors.

• open() -> void

  Create two-way pipe by creating two one-way pipes.

• out() const -> const fildes &

  Get calling process' output file descriptor.

• out() -> fildes &

  Get calling process' output file descriptor.

• in() const -> const fildes &

  Get calling process' input file descriptor.

• in() -> fildes &

  Get calling process' input file descriptor.

• is_owner() const -> bool

  Returns true, if the calling process created this pipe.

• child_out() const -> const fildes &

  Child output file descriptor.

• child_out() -> fildes &

  Child output file descriptor.

• child_in() const -> const fildes &

  Child input file descriptor.

• child_in() -> fildes &

  Child input file descriptor.

• parent_out() const -> const fildes &

  Parent output file descriptor.

• parent_out() -> fildes &

  Parent output file descriptor.

• parent_in() const -> const fildes &

  Parent input file descriptor.

• parent_in() -> fildes &

  Parent input file descriptor.

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

  Move-assignment.

• operator=(two_way_pipe &) -> two_way_pipe &
• two_way_pipe(two_way_pipe &&)

  Move-constructor.

• two_way_pipe(const two_way_pipe &)
• ~two_way_pipe()
• two_way_pipe()

Friends

• operator<<

  Output both pipes.

Output both pipes.

Overload of std::swap for two_way_pipe.