content/worker/webworker_stub_base.h


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// Copyright (c) 2011 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_WORKER_WEBWORKER_STUB_BASE_H_
#define CONTENT_WORKER_WEBWORKER_STUB_BASE_H_
#pragma once

#include "base/memory/scoped_ptr.h"
#include "content/worker/webworkerclient_proxy.h"
#include "content/worker/worker_webapplicationcachehost_impl.h"
#include "ipc/ipc_channel.h"

// This class is the common base class for both WebWorkerStub and
// WebSharedWorkerStub and contains common setup/teardown functionality.
class WebWorkerStubBase : public IPC::Channel::Listener {
 public:
  WebWorkerStubBase(int route_id,
                    const WorkerAppCacheInitInfo& appcache_init_info);
  virtual ~WebWorkerStubBase();

  // Invoked when the WebWorkerClientProxy is shutting down.
  void Shutdown();

  // Called after terminating the worker context to make sure that the worker
  // actually terminates (is not stuck in an infinite loop).
  void EnsureWorkerContextTerminates();

  WebWorkerClientProxy* client() { return &client_; }

  const WorkerAppCacheInitInfo& appcache_init_info() const {
    return appcache_init_info_;
  }

  // Returns the script url of this worker.
  virtual const GURL& url() const = 0;

 private:
  int route_id_;
  WorkerAppCacheInitInfo appcache_init_info_;

  // WebWorkerClient that responds to outgoing API calls from the worker object.
  WebWorkerClientProxy client_;

  DISALLOW_COPY_AND_ASSIGN(WebWorkerStubBase);
};

#endif  // CONTENT_WORKER_WEBWORKER_STUB_BASE_H_