Eduardo Bart
11 years ago
parent
717832b791
commit
86d06057ca
@ -1,100 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef COROUTINE_H
|
||||
#define COROUTINE_H
|
||||
|
||||
#include "thread.h"
|
||||
#include <functional>
|
||||
#include <cassert>
|
||||
|
||||
namespace stdext {
|
||||
|
||||
class coroutine
|
||||
{
|
||||
struct codata : public stdext::shared_object {
|
||||
std::unique_ptr<std::thread> thread;
|
||||
std::condition_variable conditionVar;
|
||||
std::mutex mutex;
|
||||
std::function<void()> func;
|
||||
};
|
||||
|
||||
stdext::shared_object_ptr<codata> m;
|
||||
|
||||
void run() {
|
||||
assert(m->func);
|
||||
m->func();
|
||||
std::lock_guard<std::mutex> lock(m->mutex);
|
||||
m->func = nullptr;
|
||||
m->conditionVar.notify_all();
|
||||
}
|
||||
|
||||
public:
|
||||
coroutine() : m(stdext::make_shared_object<codata>()) { }
|
||||
coroutine(const coroutine& other) : m(other.m) { }
|
||||
|
||||
coroutine& operator=(const coroutine& other) { m = other.m; return *this; }
|
||||
|
||||
~coroutine() {
|
||||
if(m.is_unique()) {
|
||||
m->conditionVar.notify_all();
|
||||
m->thread->join();
|
||||
assert(!m->func);
|
||||
}
|
||||
}
|
||||
|
||||
void create(const std::function<void()>& func) {
|
||||
assert(!!func && !m->func);
|
||||
m->func = func;
|
||||
}
|
||||
|
||||
void yield() const {
|
||||
std::unique_lock<std::mutex> lock(m->mutex);
|
||||
m->conditionVar.notify_all();
|
||||
m->conditionVar.wait(lock);
|
||||
}
|
||||
|
||||
void resume() {
|
||||
if(!m->thread) {
|
||||
std::unique_lock<std::mutex> lock(m->mutex);
|
||||
m->thread.reset(new std::thread(std::bind(&coroutine::run, this)));
|
||||
m->conditionVar.wait(lock); // wait for the thread to start
|
||||
} else {
|
||||
std::unique_lock<std::mutex> lock(m->mutex);
|
||||
assert(m->func);
|
||||
m->conditionVar.notify_all();
|
||||
m->conditionVar.wait(lock);
|
||||
}
|
||||
}
|
||||
|
||||
void join() {
|
||||
while(!is_finished())
|
||||
resume();
|
||||
}
|
||||
|
||||
bool is_suspended() { return !!m->func; }
|
||||
bool is_finished() { return !m->func; }
|
||||
};
|
||||
|
||||
};
|
||||
|
||||
#endif
|
||||
Loading…
Reference in new issue