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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "mojo/runner/android/background_application_loader.h"
#include <utility>
#include "base/bind.h"
#include "base/run_loop.h"
#include "mojo/shell/application_manager.h"
namespace mojo {
namespace runner {
BackgroundApplicationLoader::BackgroundApplicationLoader(
scoped_ptr<ApplicationLoader> real_loader,
const std::string& thread_name,
base::MessageLoop::Type message_loop_type)
: loader_(std::move(real_loader)),
message_loop_type_(message_loop_type),
thread_name_(thread_name),
message_loop_created_(true, false) {}
BackgroundApplicationLoader::~BackgroundApplicationLoader() {
if (thread_)
thread_->Join();
}
void BackgroundApplicationLoader::Load(
const GURL& url,
InterfaceRequest<Application> application_request) {
DCHECK(application_request.is_pending());
if (!thread_) {
// TODO(tim): It'd be nice if we could just have each Load call
// result in a new thread like DynamicService{Loader, Runner}. But some
// loaders are creating multiple ApplicationImpls (NetworkApplicationLoader)
// sharing a delegate (etc). So we have to keep it single threaded, wait
// for the thread to initialize, and post to the TaskRunner for subsequent
// Load calls for now.
thread_.reset(new base::DelegateSimpleThread(this, thread_name_));
thread_->Start();
message_loop_created_.Wait();
DCHECK(task_runner_.get());
}
task_runner_->PostTask(
FROM_HERE,
base::Bind(&BackgroundApplicationLoader::LoadOnBackgroundThread,
base::Unretained(this), url,
base::Passed(&application_request)));
}
void BackgroundApplicationLoader::Run() {
base::MessageLoop message_loop(message_loop_type_);
base::RunLoop loop;
task_runner_ = message_loop.task_runner();
quit_closure_ = loop.QuitClosure();
message_loop_created_.Signal();
loop.Run();
// Destroy |loader_| on the thread it's actually used on.
loader_.reset();
}
void BackgroundApplicationLoader::LoadOnBackgroundThread(
const GURL& url,
InterfaceRequest<Application> application_request) {
DCHECK(task_runner_->RunsTasksOnCurrentThread());
loader_->Load(url, std::move(application_request));
}
} // namespace runner
} // namespace mojo
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