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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_NACL_RENDERER_MANIFEST_SERVICE_CHANNEL_H_
#define COMPONENTS_NACL_RENDERER_MANIFEST_SERVICE_CHANNEL_H_
#include <stdint.h>
#include <memory>
#include "base/files/file.h"
#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "base/process/process.h"
#include "base/synchronization/lock.h"
#include "ipc/ipc_listener.h"
namespace base {
class WaitableEvent;
} // namespace base
namespace IPC {
struct ChannelHandle;
class Message;
class SyncChannel;
} // namespace IPC
namespace nacl {
class ManifestServiceChannel : public IPC::Listener {
public:
typedef base::OnceCallback<void(base::File, uint64_t, uint64_t)>
OpenResourceCallback;
class Delegate {
public:
virtual ~Delegate() = default;
// Called when PPAPI initialization in the NaCl plugin is finished.
virtual void StartupInitializationComplete() = 0;
// Called when irt_open_resource() is invoked in the NaCl plugin.
// Upon completion, callback is invoked with the file.
virtual void OpenResource(const std::string& key,
OpenResourceCallback callback) = 0;
};
ManifestServiceChannel(const IPC::ChannelHandle& handle,
base::OnceCallback<void(int32_t)> connected_callback,
std::unique_ptr<Delegate> delegate,
base::WaitableEvent* waitable_event);
ManifestServiceChannel(const ManifestServiceChannel&) = delete;
ManifestServiceChannel& operator=(const ManifestServiceChannel&) = delete;
~ManifestServiceChannel() override;
void Send(IPC::Message* message);
// Listener implementation.
bool OnMessageReceived(const IPC::Message& message) override;
void OnChannelConnected(int32_t peer_pid) override;
void OnChannelError() override;
private:
void OnStartupInitializationComplete();
void OnOpenResource(const std::string& key, IPC::Message* reply);
void DidOpenResource(IPC::Message* reply,
base::File file,
uint64_t token_lo,
uint64_t token_hi);
base::OnceCallback<void(int32_t)> connected_callback_;
std::unique_ptr<Delegate> delegate_;
std::unique_ptr<IPC::SyncChannel> channel_;
base::ProcessId peer_pid_;
// Note: This should remain the last member so it'll be destroyed and
// invalidate the weak pointers before any other members are destroyed.
base::WeakPtrFactory<ManifestServiceChannel> weak_ptr_factory_{this};
};
} // namespace nacl
#endif // COMPONENTS_NACL_RENDERER_MANIFEST_SERVICE_CHANNEL_H_
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