171 lines
4.7 KiB
C++
Executable file
171 lines
4.7 KiB
C++
Executable file
// Copyright (c) 2012-2015, The CryptoNote developers, The Bytecoin developers
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//
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// This file is part of Bytecoin.
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//
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// Bytecoin is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Bytecoin is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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#include <algorithm>
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#include <mutex>
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#include <vector>
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namespace Tools {
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template<typename T>
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class ObserverManager {
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public:
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bool add(T* observer) {
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std::unique_lock<std::mutex> lock(m_observersMutex);
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auto it = std::find(m_observers.begin(), m_observers.end(), observer);
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if (m_observers.end() == it) {
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m_observers.push_back(observer);
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return true;
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} else {
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return false;
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}
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}
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bool remove(T* observer) {
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std::unique_lock<std::mutex> lock(m_observersMutex);
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auto it = std::find(m_observers.begin(), m_observers.end(), observer);
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if (m_observers.end() == it) {
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return false;
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} else {
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m_observers.erase(it);
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return true;
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}
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}
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void clear() {
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std::unique_lock<std::mutex> lock(m_observersMutex);
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m_observers.clear();
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}
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#if defined(_MSC_VER)
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template<typename F>
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void notify(F notification) {
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std::vector<T*> observersCopy;
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{
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std::unique_lock<std::mutex> lock(m_observersMutex);
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observersCopy = m_observers;
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}
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for (T* observer : observersCopy) {
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(observer->*notification)();
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}
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}
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template<typename F, typename Arg0>
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void notify(F notification, const Arg0& arg0) {
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std::vector<T*> observersCopy;
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{
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std::unique_lock<std::mutex> lock(m_observersMutex);
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observersCopy = m_observers;
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}
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for (T* observer : observersCopy) {
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(observer->*notification)(arg0);
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}
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}
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template<typename F, typename Arg0, typename Arg1>
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void notify(F notification, const Arg0& arg0, const Arg1& arg1) {
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std::vector<T*> observersCopy;
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{
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std::unique_lock<std::mutex> lock(m_observersMutex);
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observersCopy = m_observers;
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}
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for (T* observer : observersCopy) {
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(observer->*notification)(arg0, arg1);
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}
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}
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template<typename F, typename Arg0, typename Arg1, typename Arg2>
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void notify(F notification, const Arg0& arg0, const Arg1& arg1, const Arg2& arg2) {
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std::vector<T*> observersCopy;
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{
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std::unique_lock<std::mutex> lock(m_observersMutex);
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observersCopy = m_observers;
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}
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for (T* observer : observersCopy) {
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(observer->*notification)(arg0, arg1, arg2);
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}
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}
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template<typename F, typename Arg0, typename Arg1, typename Arg2, typename Arg3>
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void notify(F notification, const Arg0& arg0, const Arg1& arg1, const Arg2& arg2, const Arg3& arg3) {
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std::vector<T*> observersCopy;
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{
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std::unique_lock<std::mutex> lock(m_observersMutex);
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observersCopy = m_observers;
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}
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for (T* observer : observersCopy) {
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(observer->*notification)(arg0, arg1, arg2, arg3);
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}
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}
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template<typename F, typename Arg0, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
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void notify(F notification, const Arg0& arg0, const Arg1& arg1, const Arg2& arg2, const Arg3& arg3, const Arg4& arg4) {
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std::vector<T*> observersCopy;
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{
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std::unique_lock<std::mutex> lock(m_observersMutex);
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observersCopy = m_observers;
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}
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for (T* observer : observersCopy) {
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(observer->*notification)(arg0, arg1, arg2, arg3, arg4);
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}
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}
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template<typename F, typename Arg0, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5>
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void notify(F notification, const Arg0& arg0, const Arg1& arg1, const Arg2& arg2, const Arg3& arg3, const Arg4& arg4, const Arg5& arg5) {
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std::vector<T*> observersCopy;
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{
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std::unique_lock<std::mutex> lock(m_observersMutex);
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observersCopy = m_observers;
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}
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for (T* observer : observersCopy) {
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(observer->*notification)(arg0, arg1, arg2, arg3, arg4, arg5);
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}
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}
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#else
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template<typename F, typename... Args>
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void notify(F notification, Args... args) {
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std::vector<T*> observersCopy;
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{
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std::unique_lock<std::mutex> lock(m_observersMutex);
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observersCopy = m_observers;
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}
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for (T* observer : observersCopy) {
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(observer->*notification)(args...);
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}
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}
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#endif
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private:
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std::vector<T*> m_observers;
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std::mutex m_observersMutex;
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};
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}
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