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Diffstat (limited to 'src/server/shared/Threading/ProducerConsumerQueue.h')
-rw-r--r-- | src/server/shared/Threading/ProducerConsumerQueue.h | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/src/server/shared/Threading/ProducerConsumerQueue.h b/src/server/shared/Threading/ProducerConsumerQueue.h deleted file mode 100644 index 96546960393..00000000000 --- a/src/server/shared/Threading/ProducerConsumerQueue.h +++ /dev/null @@ -1,112 +0,0 @@ -/* -* Copyright (C) 2008-2015 TrinityCore <http://www.trinitycore.org/> -* -* This program is free software; you can redistribute it and/or modify it -* under the terms of the GNU General Public License as published by the -* Free Software Foundation; either version 2 of the License, or (at your -* option) any later version. -* -* This program is distributed in the hope that it will be useful, but WITHOUT -* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for -* more details. -* -* You should have received a copy of the GNU General Public License along -* with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#ifndef _PCQ_H -#define _PCQ_H - -#include <condition_variable> -#include <mutex> -#include <queue> -#include <atomic> -#include <type_traits> - -template <typename T> -class ProducerConsumerQueue -{ -private: - std::mutex _queueLock; - std::queue<T> _queue; - std::condition_variable _condition; - std::atomic<bool> _shutdown; - -public: - - ProducerConsumerQueue<T>() : _shutdown(false) { } - - void Push(const T& value) - { - std::lock_guard<std::mutex> lock(_queueLock); - _queue.push(std::move(value)); - - _condition.notify_one(); - } - - bool Empty() - { - std::lock_guard<std::mutex> lock(_queueLock); - - return _queue.empty(); - } - - bool Pop(T& value) - { - std::lock_guard<std::mutex> lock(_queueLock); - - if (_queue.empty() || _shutdown) - return false; - - value = _queue.front(); - - _queue.pop(); - - return true; - } - - void WaitAndPop(T& value) - { - std::unique_lock<std::mutex> lock(_queueLock); - - // we could be using .wait(lock, predicate) overload here but it is broken - // https://connect.microsoft.com/VisualStudio/feedback/details/1098841 - while (_queue.empty() && !_shutdown) - _condition.wait(lock); - - if (_queue.empty() || _shutdown) - return; - - value = _queue.front(); - - _queue.pop(); - } - - void Cancel() - { - std::unique_lock<std::mutex> lock(_queueLock); - - while (!_queue.empty()) - { - T& value = _queue.front(); - - DeleteQueuedObject(value); - - _queue.pop(); - } - - _shutdown = true; - - _condition.notify_all(); - } - -private: - template<typename E = T> - typename std::enable_if<std::is_pointer<E>::value>::type DeleteQueuedObject(E& obj) { delete obj; } - - template<typename E = T> - typename std::enable_if<!std::is_pointer<E>::value>::type DeleteQueuedObject(E const& /*packet*/) { } -}; - -#endif |