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 PPAPI_PROXY_PLUGIN_RESOURCE_TRACKER_H_
6#define PPAPI_PROXY_PLUGIN_RESOURCE_TRACKER_H_
7
8#include <map>
9#include <utility>
10
11#include "base/compiler_specific.h"
12#include "ppapi/c/pp_completion_callback.h"
13#include "ppapi/c/pp_instance.h"
14#include "ppapi/c/pp_stdint.h"
15#include "ppapi/c/pp_resource.h"
16#include "ppapi/c/pp_var.h"
17#include "ppapi/proxy/ppapi_proxy_export.h"
18#include "ppapi/shared_impl/host_resource.h"
19#include "ppapi/shared_impl/resource_tracker.h"
20
21template<typename T> struct DefaultSingletonTraits;
22
23namespace ppapi {
24
25namespace proxy {
26
27class PPAPI_PROXY_EXPORT PluginResourceTracker : public ResourceTracker {
28 public:
29  PluginResourceTracker();
30  virtual ~PluginResourceTracker();
31
32  // Given a host resource, maps it to an existing plugin resource ID if it
33  // exists, or returns 0 on failure.
34  PP_Resource PluginResourceForHostResource(
35      const HostResource& resource) const;
36
37 protected:
38  // ResourceTracker overrides.
39  virtual PP_Resource AddResource(Resource* object) OVERRIDE;
40  virtual void RemoveResource(Resource* object) OVERRIDE;
41
42 private:
43  // Map of host instance/resource pairs to a plugin resource ID.
44  typedef std::map<HostResource, PP_Resource> HostResourceMap;
45  HostResourceMap host_resource_map_;
46
47  DISALLOW_COPY_AND_ASSIGN(PluginResourceTracker);
48};
49
50}  // namespace proxy
51}  // namespace ppapi
52
53#endif  // PPAPI_PROXY_PLUGIN_RESOURCE_TRACKER_H_
54