Issue 5450 - introduce the Platform class

src/Platform.cpp

+/*
+* This file is part of Adblock Plus <https://adblockplus.org/>,
+* Copyright (C) 2006-2017 eyeo GmbH
+*
+* Adblock Plus is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 3 as
+* published by the Free Software Foundation.
+*
+* Adblock Plus 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 Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <AdblockPlus/Platform.h>
+#include <AdblockPlus/JsEngine.h>
+#include <AdblockPlus/FilterEngine.h>
+#include <AdblockPlus/DefaultLogSystem.h>
+#include "DefaultTimer.h"
+#include "DefaultWebRequest.h"
+#include "DefaultFileSystem.h"
+
+using namespace AdblockPlus;
+
+namespace
+{
+  void DummyScheduler(const AdblockPlus::SchedulerTask& task)
+  {
+    std::thread(task).detach();
+  }
+}
+
+TimerPtr AdblockPlus::CreateDefaultTimer()
+{
+  return TimerPtr(new DefaultTimer());
+}
+
+FileSystemPtr AdblockPlus::CreateDefaultFileSystem(const Scheduler& scheduler)
+{
+  return FileSystemPtr(new DefaultFileSystem(scheduler, std::unique_ptr<DefaultFileSystemSync>(new DefaultFileSystemSync())));
+}
+
+WebRequestPtr AdblockPlus::CreateDefaultWebRequest(const Scheduler& scheduler)
+{
+  return WebRequestPtr(new DefaultWebRequest(scheduler, std::unique_ptr<DefaultWebRequestSync>(new DefaultWebRequestSync())));
+}
+
+LogSystemPtr AdblockPlus::CreateDefaultLogSystem()
+{
+  return LogSystemPtr(new DefaultLogSystem());
+}
+
+Platform::Platform(CreationParameters&& creationParameters)
+{
+  logSystem = creationParameters.logSystem ? std::move(creationParameters.logSystem) : CreateDefaultLogSystem();
+  timer = creationParameters.timer ? std::move(creationParameters.timer) : CreateDefaultTimer();
+  fileSystem = creationParameters.fileSystem ? std::move(creationParameters.fileSystem) : CreateDefaultFileSystem(::DummyScheduler);
+  webRequest = creationParameters.webRequest ? std::move(creationParameters.webRequest) : CreateDefaultWebRequest(::DummyScheduler);
+}
+
+Platform::~Platform()
+{
+}
+
+void Platform::SetUpJsEngine(const AppInfo& appInfo)
+{
+  std::lock_guard<std::mutex> lock(modulesMutex);
+  if (jsEngine)
+    return;
+  jsEngine = JsEngine::New(appInfo, *this);
+}
+
+std::shared_ptr<JsEngine> Platform::GetJsEngine()
+{
+  SetUpJsEngine();
+  return jsEngine;
+}
+
+ITimer& Platform::GetTimer()
+{
+  return *timer;
+}
+
+IFileSystem& Platform::GetFileSystem()
+{
+  return *fileSystem;
+}
+
+IWebRequest& Platform::GetWebRequest()
+{
+  return *webRequest;
+}
+
+LogSystem& Platform::GetLogSystem()
+{
+  return *logSystem;
+}