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// Copyright 2015 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 "ipc/mojo/scoped_ipc_support.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/macros.h"
#include "mojo/edk/embedder/embedder.h"
#include "mojo/edk/embedder/process_delegate.h"
namespace IPC {
namespace {
class IPCSupportInitializer : public mojo::edk::ProcessDelegate {
public:
IPCSupportInitializer() {}
~IPCSupportInitializer() override {}
void Init(scoped_refptr<base::TaskRunner> io_thread_task_runner) {
CHECK(!io_thread_task_runner_);
CHECK(io_thread_task_runner);
io_thread_task_runner_ = io_thread_task_runner;
mojo::edk::InitIPCSupport(this, io_thread_task_runner_);
}
void ShutDown() {
CHECK(io_thread_task_runner_);
mojo::edk::ShutdownIPCSupport();
}
private:
// mojo::edk::ProcessDelegate:
void OnShutdownComplete() override {
// TODO(rockot): We should ensure that IO runner shutdown is blocked until
// this is called.
}
scoped_refptr<base::TaskRunner> io_thread_task_runner_;
DISALLOW_COPY_AND_ASSIGN(IPCSupportInitializer);
};
base::LazyInstance<IPCSupportInitializer>::Leaky ipc_support_initializer;
} // namespace
ScopedIPCSupport::ScopedIPCSupport(
scoped_refptr<base::TaskRunner> io_thread_task_runner) {
ipc_support_initializer.Get().Init(io_thread_task_runner);
}
ScopedIPCSupport::~ScopedIPCSupport() {
ipc_support_initializer.Get().ShutDown();
}
} // namespace IPC
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