resource.cc revision 58537e28ecd584eab876aee8be7156509866d23a
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#include "ppapi/shared_impl/resource.h"
6
7#include "base/logging.h"
8#include "ppapi/shared_impl/resource_tracker.h"
9#include "ppapi/shared_impl/ppapi_globals.h"
10
11namespace ppapi {
12
13Resource::Resource(ResourceObjectType type, PP_Instance instance)
14    : host_resource_(HostResource::MakeInstanceOnly(instance)) {
15  // The instance should be valid (nonzero).
16  DCHECK(instance);
17
18  pp_resource_ = PpapiGlobals::Get()->GetResourceTracker()->AddResource(this);
19  if (type == OBJECT_IS_IMPL) {
20    // For the in-process case, the host resource and resource are the same.
21    //
22    // Note that we need to have set the instance above (in the initializer
23    // list) since AddResource needs our instance() getter to work, and that
24    // goes through the host resource. When we get the "real" resource ID,
25    // we re-set the host_resource.
26    host_resource_.SetHostResource(instance, pp_resource_);
27  }
28}
29
30Resource::Resource(ResourceObjectType type, const HostResource& host_resource)
31    : host_resource_(host_resource) {
32  pp_resource_ = PpapiGlobals::Get()->GetResourceTracker()->AddResource(this);
33  if (type == OBJECT_IS_IMPL) {
34    // When using this constructor for the implementation, the resource ID
35    // should not have been passed in.
36    DCHECK(host_resource_.host_resource() == 0);
37
38    // See previous constructor.
39    host_resource_.SetHostResource(host_resource.instance(), pp_resource_);
40  }
41}
42
43Resource::Resource(Untracked) {
44  pp_resource_ = PpapiGlobals::Get()->GetResourceTracker()->AddResource(this);
45}
46
47Resource::~Resource() {
48  RemoveFromResourceTracker();
49}
50
51PP_Resource Resource::GetReference() {
52  PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(pp_resource());
53  return pp_resource();
54}
55
56void Resource::NotifyLastPluginRefWasDeleted() {
57  // Notify subclasses.
58  LastPluginRefWasDeleted();
59}
60
61void Resource::NotifyInstanceWasDeleted() {
62  // Hold a reference, because InstanceWasDeleted() may cause us to be
63  // destroyed.
64  scoped_refptr<Resource> keep_alive(this);
65
66  // Notify subclasses.
67  InstanceWasDeleted();
68
69  host_resource_ = HostResource();
70}
71
72void Resource::OnReplyReceived(const proxy::ResourceMessageReplyParams& params,
73                               const IPC::Message& msg) {
74  NOTREACHED();
75}
76
77void Resource::Log(PP_LogLevel level, const std::string& message) {
78  PpapiGlobals::Get()->LogWithSource(pp_instance(), level, std::string(),
79                                     message);
80}
81
82void Resource::RemoveFromResourceTracker() {
83  PpapiGlobals::Get()->GetResourceTracker()->RemoveResource(this);
84}
85
86#define DEFINE_TYPE_GETTER(RESOURCE) \
87  thunk::RESOURCE* Resource::As##RESOURCE() { return NULL; }
88FOR_ALL_PPAPI_RESOURCE_APIS(DEFINE_TYPE_GETTER)
89#undef DEFINE_TYPE_GETTER
90
91}  // namespace ppapi
92
93