mirror of
https://github.com/boostorg/asio.git
synced 2026-02-24 14:22:08 +00:00
495e6367af
This adds experimental::channel and experimental::concurrent_channel.
Channels may be used to send completions as messages. For example:
// Create a channel with no buffer space.
channel<void(error_code, size_t)> ch(ctx);
// The call to try_send fails as there is no buffer
// space and no waiting receive operations.
bool ok = ch.try_send(asio::error::eof, 123);
assert(!ok);
// The async_send operation blocks until a receive
// operation consumes the message.
ch.async_send(asio::error::eof, 123,
[](error_code ec)
{
// ...
});
// The async_receive consumes the message. Both the
// async_send and async_receive operations complete
// immediately.
ch.async_receive(
[](error_code ec, size_t n)
{
// ...
});
26 lines
667 B
C++
26 lines
667 B
C++
//
|
|
// experimental/basic_channel.cpp
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
|
|
// Disable autolinking for unit tests.
|
|
#if !defined(BOOST_ALL_NO_LIB)
|
|
#define BOOST_ALL_NO_LIB 1
|
|
#endif // !defined(BOOST_ALL_NO_LIB)
|
|
|
|
// Test that header file is self-contained.
|
|
#include <boost/asio/experimental/basic_channel.hpp>
|
|
|
|
#include "../unit_test.hpp"
|
|
|
|
BOOST_ASIO_TEST_SUITE
|
|
(
|
|
"experimental/basic_channel",
|
|
BOOST_ASIO_TEST_CASE(null_test)
|
|
)
|