mirror of
https://github.com/minetest/minetest.git
synced 2024-11-27 10:03:45 +01:00
47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
/*
|
|
This file is a part of the JThread package, which contains some object-
|
|
oriented thread wrappers for different thread implementations.
|
|
|
|
Copyright (c) 2000-2006 Jori Liesenborgs (jori.liesenborgs@gmail.com)
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a
|
|
copy of this software and associated documentation files (the "Software"),
|
|
to deal in the Software without restriction, including without limitation
|
|
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
and/or sell copies of the Software, and to permit persons to whom the
|
|
Software is furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <condition_variable>
|
|
|
|
/** A syncronization primitive that will wake up one waiting thread when signaled.
|
|
* Calling @c signal() multiple times before a waiting thread has had a chance
|
|
* to notice the signal will wake only one thread. Additionally, if no threads
|
|
* are waiting on the event when it is signaled, the next call to @c wait()
|
|
* will return (almost) immediately.
|
|
*/
|
|
class Event
|
|
{
|
|
public:
|
|
void wait();
|
|
void signal();
|
|
|
|
private:
|
|
std::condition_variable cv;
|
|
std::mutex mutex;
|
|
bool notified = false;
|
|
};
|