1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CONTENT_PUBLIC_BROWSER_WORKER_SERVICE_H_
6#define CONTENT_PUBLIC_BROWSER_WORKER_SERVICE_H_
7
8#include <vector>
9
10#include "base/process/process.h"
11#include "content/common/content_export.h"
12#include "url/gurl.h"
13
14namespace content {
15
16class WorkerServiceObserver;
17
18// A singleton for managing HTML5 shared web workers. These are run in a
19// separate process, since multiple renderer processes can be talking to a
20// single shared worker. All the methods below can only be called on the IO
21// thread.
22class WorkerService {
23 public:
24  virtual ~WorkerService() {}
25
26  // Returns the WorkerService singleton.
27  CONTENT_EXPORT static WorkerService* GetInstance();
28
29  // Terminates the given worker. Returns true if the process was found.
30  virtual bool TerminateWorker(int process_id, int route_id) = 0;
31
32  struct WorkerInfo {
33    GURL url;
34    base::string16 name;
35    int process_id;
36    int route_id;
37    base::ProcessHandle handle;
38  };
39
40  // Return information about all the currently running workers.
41  virtual std::vector<WorkerInfo> GetWorkers() = 0;
42
43  virtual void AddObserver(WorkerServiceObserver* observer) = 0;
44  virtual void RemoveObserver(WorkerServiceObserver* observer) = 0;
45};
46
47}  // namespace content
48
49#endif  // CONTENT_PUBLIC_BROWSER_PLUGIN_SERVICE_H_
50