Guekka / mpsc-channel-in-cxx

mpsc_channel.hpp - A simple C++ implementation of the 'channel' in rust language (std::mpsc).

mpsc channel in c++

mpsc_channel.hpp - A simple C++ implementation of the 'channel' in rust language (std::mpsc).

Usage

Use mpsc::make_channel<T> to create a channel. make_channel<T> will return a tuple of (Sender<T>, Receiver<T>).

For example:

// Create.
auto [ sender, receiver ] = mpsc::make_channel<int>();

// Send.
sender.send(3);

// Receive (both returns a std::optional<T>.)
receiver.receive(); // Blocking when there is nothing present in the channel.
receiver.try_receive(); // Not blocking. Return immediately.

// close() and closed()
sender.close();
bool result = sender.closed();
assert(result == receiver.closed());

// You can use range-based for loop to receive from the channel.
for (int v: receiver) {
	// do something with v
	// The loop will stop after the sender called close() and all items were processed.
	// Only sender can call close().
}

Note: mpsc stands for Multi-Producer Single-Consumer. So Sender can be either copied and moved, but Receiver can only be moved.

Feel free to explore the tests.cpp. The tests are also examples of the usage.

Read the source if you need more information. Sorry for the lack of comments. ～(￣▽￣～)~

Copyright (c) 2019 liuchibing.