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81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
// eventpp library
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// Copyright (C) 2018 Wang Qi (wqking)
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// Github: https://github.com/wqking/eventpp
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "test.h"
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#include "eventpp/callbacklist.h"
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#include <functional>
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#include <vector>
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// To enable benchmark, change below line to #if 1
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#if 1
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namespace {
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template <typename Policies>
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void doCallbackListVsFunctionList(const std::string & message)
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{
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eventpp::CallbackList<void (size_t), Policies> callbackList;
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std::vector<std::function<void (size_t)> > functionList;
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constexpr size_t callbackCount = 100;
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constexpr size_t iterateCount = 1000 * 1000;
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volatile size_t data = 0;
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for(size_t i = 0; i < callbackCount; ++i) {
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callbackList.append([&data, i](size_t index) {
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data += i + index;
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});
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functionList.push_back([&data, i](size_t index) {
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data += i + index;
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});
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}
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const uint64_t timeCallbackList = measureElapsedTime(
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[iterateCount, &callbackList]() {
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for(size_t iterate = 0; iterate < iterateCount; ++iterate) {
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callbackList(iterate);
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}
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}
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);
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const uint64_t timeFunctionList = measureElapsedTime(
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[iterateCount, &functionList]() {
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for(size_t iterate = 0; iterate < iterateCount; ++iterate) {
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for(auto & func : functionList) {
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func(iterate);
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}
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}
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}
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);
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REQUIRE(data >= 0);
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std::cout << message << " timeCallbackList " << timeCallbackList << std::endl;
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std::cout << message << " timeFunctionList " << timeFunctionList << std::endl;
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}
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} //unnamed namespace
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TEST_CASE("b7, CallbackList vs vector of functions")
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{
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struct PoliciesMultiThreading {
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using Threading = eventpp::MultipleThreading;
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};
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doCallbackListVsFunctionList<PoliciesMultiThreading>("Multi thread");
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struct PoliciesSingleThreading {
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using Threading = eventpp::SingleThreading;
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};
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doCallbackListVsFunctionList<PoliciesSingleThreading>("Single thread");
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}
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#endif
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