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-[/
- / Copyright (c) 2003-2016 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)
- /]
-
-[section:signals Signal Handling]
-
-Asio supports signal handling using a class called [link
-asio.reference.signal_set signal_set]. Programs may add one or more signals to
-the set, and then perform an `async_wait()` operation. The specified handler
-will be called when one of the signals occurs. The same signal number may be
-registered with multiple [link asio.reference.signal_set signal_set] objects,
-however the signal number must be used only with Asio.
-
- void handler(
- const asio::error_code& error,
- int signal_number)
- {
- if (!error)
- {
- // A signal occurred.
- }
- }
-
- ...
-
- // Construct a signal set registered for process termination.
- asio::signal_set signals(io_context, SIGINT, SIGTERM);
-
- // Start an asynchronous wait for one of the signals to occur.
- signals.async_wait(handler);
-
-Signal handling also works on Windows, as the Microsoft Visual C++ runtime
-library maps console events like Ctrl+C to the equivalent signal.
-
-[heading See Also]
-
-[link asio.reference.signal_set signal_set],
-[link asio.examples.cpp03_examples.http_server HTTP server example (C++03)],
-[link asio.examples.cpp11_examples.http_server HTTP server example (C++11)].
-
-[endsect]