mirror of
https://github.com/flutter/flutter.git
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2629d5e73b
* Remove time * Remove rand * Remove array buffers * Remove more code * Remove more image decoding code * Remove more code * Remove old public API * Remove more old public headers * Remove layout test support * Remove WebPrivateOwnPtr * Remove WebString * Remove worker pool
149 lines
4.7 KiB
C++
149 lines
4.7 KiB
C++
/*
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* Copyright (C) 2009 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/public/web/Sky.h"
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#include "base/message_loop/message_loop.h"
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#include "base/trace_event/trace_event.h"
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#include "flutter/tonic/dart_microtask_queue.h"
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#include "mojo/message_pump/message_pump_mojo.h"
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#include "sky/engine/core/Init.h"
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#include "sky/engine/core/script/dart_init.h"
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#include "sky/engine/public/platform/Platform.h"
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#include "sky/engine/wtf/Assertions.h"
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#include "sky/engine/wtf/MainThread.h"
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#include "sky/engine/wtf/WTF.h"
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#include "sky/engine/wtf/text/AtomicString.h"
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#include "sky/engine/wtf/text/TextEncoding.h"
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namespace blink {
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namespace {
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void willProcessTask()
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{
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}
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void didProcessTask()
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{
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DartMicrotaskQueue::RunMicrotasks();
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// FIXME: Report memory usage to dart?
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}
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class TaskObserver : public base::MessageLoop::TaskObserver {
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public:
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void WillProcessTask(const base::PendingTask& pending_task) override { willProcessTask(); }
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void DidProcessTask(const base::PendingTask& pending_task) override { didProcessTask(); }
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};
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class SignalObserver : public mojo::common::MessagePumpMojo::Observer {
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public:
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void WillSignalHandler() override { willProcessTask(); }
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void DidSignalHandler() override { didProcessTask(); }
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};
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static TaskObserver* s_taskObserver = 0;
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static SignalObserver* s_signalObserver = 0;
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void addMessageLoopObservers()
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{
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ASSERT(!s_taskObserver);
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s_taskObserver = new TaskObserver;
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ASSERT(!s_signalObserver);
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s_signalObserver = new SignalObserver;
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base::MessageLoop::current()->AddTaskObserver(s_taskObserver);
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mojo::common::MessagePumpMojo::current()->AddObserver(s_signalObserver);
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}
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void removeMessageLoopObservers()
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{
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base::MessageLoop::current()->RemoveTaskObserver(s_taskObserver);
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mojo::common::MessagePumpMojo::current()->RemoveObserver(s_signalObserver);
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ASSERT(s_taskObserver);
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delete s_taskObserver;
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s_taskObserver = 0;
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ASSERT(s_signalObserver);
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delete s_signalObserver;
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s_signalObserver = 0;
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}
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} // namespace
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// Make sure we are not re-initialized in the same address space.
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// Doing so may cause hard to reproduce crashes.
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static bool s_webKitInitialized = false;
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void initialize(Platform* platform)
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{
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TRACE_EVENT0("flutter", "blink::initialize");
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ASSERT(!s_webKitInitialized);
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s_webKitInitialized = true;
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ASSERT(platform);
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Platform::initialize(platform);
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WTF::initialize();
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WTF::initializeMainThread();
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DEFINE_STATIC_LOCAL(CoreInitializer, initializer, ());
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initializer.init();
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// There are some code paths (for example, running WebKit in the browser
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// process and calling into LocalStorage before anything else) where the
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// UTF8 string encoding tables are used on a background thread before
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// they're set up. This is a problem because their set up routines assert
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// they're running on the main WebKitThread. It might be possible to make
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// the initialization thread-safe, but given that so many code paths use
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// this, initializing this lazily probably doesn't buy us much.
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WTF::UTF8Encoding();
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InitDartVM();
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addMessageLoopObservers();
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}
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void shutdown()
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{
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removeMessageLoopObservers();
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// FIXME: Shutdown dart?
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CoreInitializer::shutdown();
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WTF::shutdown();
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Platform::shutdown();
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}
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} // namespace blink
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