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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.
#ifndef CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_DISPATCHER_H_
#define CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_DISPATCHER_H_
#include <map>
#include "base/macros.h"
#include "base/synchronization/lock.h"
#include "content/child/worker_thread_message_filter.h"
namespace content {
class NotificationDispatcher : public WorkerThreadMessageFilter {
public:
explicit NotificationDispatcher(ThreadSafeSender* thread_safe_sender);
// Generates a, process-unique new notification Id mapped to |thread_id|, and
// return the notification Id. This method can be called on any thread.
int GenerateNotificationId(int thread_id);
protected:
~NotificationDispatcher() override;
private:
// WorkerThreadMessageFilter:
bool ShouldHandleMessage(const IPC::Message& msg) const override;
void OnFilteredMessageReceived(const IPC::Message& msg) override;
bool GetWorkerThreadIdForMessage(const IPC::Message& msg,
int* ipc_thread_id) override;
using NotificationIdToThreadId = std::map<int, int>;
base::Lock notification_id_map_lock_;
NotificationIdToThreadId notification_id_map_;
int next_notification_id_ = 0;
DISALLOW_COPY_AND_ASSIGN(NotificationDispatcher);
};
} // namespace content
#endif // CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_DISPATCHER_H_
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