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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 "content/browser/mojo/mojo_application_host.h"
#include "content/common/mojo/mojo_messages.h"
#include "content/public/browser/browser_thread.h"
#include "ipc/ipc_sender.h"
#include "third_party/mojo/src/mojo/edk/embedder/platform_channel_pair.h"
namespace content {
namespace {
base::PlatformFile PlatformFileFromScopedPlatformHandle(
mojo::embedder::ScopedPlatformHandle handle) {
#if defined(OS_POSIX)
return handle.release().fd;
#elif defined(OS_WIN)
return handle.release().handle;
#endif
}
class ApplicationSetupImpl : public ApplicationSetup {
public:
ApplicationSetupImpl(ServiceRegistryImpl* service_registry,
mojo::InterfaceRequest<ApplicationSetup> request)
: binding_(this, request.Pass()),
service_registry_(service_registry) {
}
~ApplicationSetupImpl() override {
}
private:
// ApplicationSetup implementation.
void ExchangeServiceProviders(
mojo::InterfaceRequest<mojo::ServiceProvider> services,
mojo::ServiceProviderPtr exposed_services) override {
service_registry_->Bind(services.Pass());
service_registry_->BindRemoteServiceProvider(exposed_services.Pass());
}
mojo::Binding<ApplicationSetup> binding_;
ServiceRegistryImpl* service_registry_;
};
} // namespace
MojoApplicationHost::MojoApplicationHost()
: did_activate_(false) {
#if defined(OS_ANDROID)
service_registry_android_.reset(
new ServiceRegistryAndroid(&service_registry_));
#endif
}
MojoApplicationHost::~MojoApplicationHost() {
}
bool MojoApplicationHost::Init() {
DCHECK(!client_handle_.is_valid()) << "Already initialized!";
mojo::embedder::PlatformChannelPair channel_pair;
scoped_refptr<base::TaskRunner> io_task_runner;
if (io_task_runner_override_) {
io_task_runner = io_task_runner_override_;
} else {
io_task_runner =
BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::IO)
->task_runner();
}
mojo::ScopedMessagePipeHandle message_pipe = channel_init_.Init(
PlatformFileFromScopedPlatformHandle(channel_pair.PassServerHandle()),
io_task_runner);
if (!message_pipe.is_valid())
return false;
// Forward this to the client once we know its process handle.
client_handle_ = channel_pair.PassClientHandle();
application_setup_.reset(new ApplicationSetupImpl(
&service_registry_,
mojo::MakeRequest<ApplicationSetup>(message_pipe.Pass())));
return true;
}
void MojoApplicationHost::Activate(IPC::Sender* sender,
base::ProcessHandle process_handle) {
DCHECK(!did_activate_);
DCHECK(client_handle_.is_valid());
base::PlatformFile client_file =
PlatformFileFromScopedPlatformHandle(client_handle_.Pass());
did_activate_ = sender->Send(new MojoMsg_Activate(
IPC::GetFileHandleForProcess(client_file, process_handle, true)));
}
void MojoApplicationHost::WillDestroySoon() {
channel_init_.WillDestroySoon();
}
void MojoApplicationHost::ShutdownOnIOThread() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
channel_init_.ShutdownOnIOThread();
}
void MojoApplicationHost::OverrideIOTaskRunnerForTest(
scoped_refptr<base::TaskRunner> io_task_runner) {
io_task_runner_override_ = io_task_runner;
}
} // namespace content
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