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author Vas Crabb <vas@vastheman.com>2024-04-22 08:04:58 +1000
committer Vas Crabb <vas@vastheman.com>2024-04-22 08:04:58 +1000
commit184292b730f4236bd4840e780fdad97ee060ec84 (patch)
tree67902161a465fe92aec78ca502de07092b8cde0f /3rdparty/asio/src/examples/cpp03/timers/time_t_timer.cpp
parent24154bc1f00790f344120b3a85175d6f616c5ad0 (diff)
3rdparty/asio: Updated to 1.30.2
Diffstat (limited to '3rdparty/asio/src/examples/cpp03/timers/time_t_timer.cpp')
-rw-r--r--3rdparty/asio/src/examples/cpp03/timers/time_t_timer.cpp106
1 files changed, 0 insertions, 106 deletions
diff --git a/3rdparty/asio/src/examples/cpp03/timers/time_t_timer.cpp b/3rdparty/asio/src/examples/cpp03/timers/time_t_timer.cpp
deleted file mode 100644
index 74426b3c71d..00000000000
--- a/3rdparty/asio/src/examples/cpp03/timers/time_t_timer.cpp
+++ /dev/null
@@ -1,106 +0,0 @@
-//
-// time_t_timer.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)
-//
-
-#include <asio.hpp>
-#include <ctime>
-#include <iostream>
-
-// A custom implementation of the Clock concept from the standard C++ library.
-struct time_t_clock
-{
- // The duration type.
- typedef asio::chrono::steady_clock::duration duration;
-
- // The duration's underlying arithmetic representation.
- typedef duration::rep rep;
-
- // The ratio representing the duration's tick period.
- typedef duration::period period;
-
- // An absolute time point represented using the clock.
- typedef asio::chrono::time_point<time_t_clock> time_point;
-
- // The clock is not monotonically increasing.
- static const bool is_steady = false;
-
- // Get the current time.
- static time_point now()
- {
- return time_point() + asio::chrono::seconds(std::time(0));
- }
-};
-
-// The asio::basic_waitable_timer template accepts an optional WaitTraits
-// template parameter. The underlying time_t clock has one-second granularity,
-// so these traits may be customised to reduce the latency between the clock
-// ticking over and a wait operation's completion. When the timeout is near
-// (less than one second away) we poll the clock more frequently to detect the
-// time change closer to when it occurs. The user can select the appropriate
-// trade off between accuracy and the increased CPU cost of polling. In extreme
-// cases, a zero duration may be returned to make the timers as accurate as
-// possible, albeit with 100% CPU usage.
-struct time_t_wait_traits
-{
- // Determine how long until the clock should be next polled to determine
- // whether the duration has elapsed.
- static time_t_clock::duration to_wait_duration(
- const time_t_clock::duration& d)
- {
- if (d > asio::chrono::seconds(1))
- return d - asio::chrono::seconds(1);
- else if (d > asio::chrono::seconds(0))
- return asio::chrono::milliseconds(10);
- else
- return asio::chrono::seconds(0);
- }
-
- // Determine how long until the clock should be next polled to determine
- // whether the absoluate time has been reached.
- static time_t_clock::duration to_wait_duration(
- const time_t_clock::time_point& t)
- {
- return to_wait_duration(t - time_t_clock::now());
- }
-};
-
-typedef asio::basic_waitable_timer<
- time_t_clock, time_t_wait_traits> time_t_timer;
-
-void handle_timeout(const asio::error_code&)
-{
- std::cout << "handle_timeout\n";
-}
-
-int main()
-{
- try
- {
- asio::io_context io_context;
-
- time_t_timer timer(io_context);
-
- timer.expires_after(asio::chrono::seconds(5));
- std::cout << "Starting synchronous wait\n";
- timer.wait();
- std::cout << "Finished synchronous wait\n";
-
- timer.expires_after(asio::chrono::seconds(5));
- std::cout << "Starting asynchronous wait\n";
- timer.async_wait(&handle_timeout);
- io_context.run();
- std::cout << "Finished asynchronous wait\n";
- }
- catch (std::exception& e)
- {
- std::cout << "Exception: " << e.what() << "\n";
- }
-
- return 0;
-}