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
11 namespace ppapi {
12
Resource(ResourceObjectType type,PP_Instance instance)13 Resource::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
Resource(ResourceObjectType type,const HostResource & host_resource)30 Resource::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
Resource(Untracked)43 Resource::Resource(Untracked) {
44 pp_resource_ = PpapiGlobals::Get()->GetResourceTracker()->AddResource(this);
45 }
46
~Resource()47 Resource::~Resource() { RemoveFromResourceTracker(); }
48
GetReference()49 PP_Resource Resource::GetReference() {
50 PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(pp_resource());
51 return pp_resource();
52 }
53
NotifyLastPluginRefWasDeleted()54 void Resource::NotifyLastPluginRefWasDeleted() {
55 // Notify subclasses.
56 LastPluginRefWasDeleted();
57 }
58
NotifyInstanceWasDeleted()59 void Resource::NotifyInstanceWasDeleted() {
60 // Hold a reference, because InstanceWasDeleted() may cause us to be
61 // destroyed.
62 scoped_refptr<Resource> keep_alive(this);
63
64 // Notify subclasses.
65 InstanceWasDeleted();
66
67 host_resource_ = HostResource();
68 }
69
OnReplyReceived(const proxy::ResourceMessageReplyParams & params,const IPC::Message & msg)70 void Resource::OnReplyReceived(const proxy::ResourceMessageReplyParams& params,
71 const IPC::Message& msg) {
72 NOTREACHED();
73 }
74
Log(PP_LogLevel level,const std::string & message)75 void Resource::Log(PP_LogLevel level, const std::string& message) {
76 PpapiGlobals::Get()->LogWithSource(
77 pp_instance(), level, std::string(), message);
78 }
79
RemoveFromResourceTracker()80 void Resource::RemoveFromResourceTracker() {
81 PpapiGlobals::Get()->GetResourceTracker()->RemoveResource(this);
82 }
83
84 #define DEFINE_TYPE_GETTER(RESOURCE) \
85 thunk::RESOURCE* Resource::As##RESOURCE() { return NULL; }
86 FOR_ALL_PPAPI_RESOURCE_APIS(DEFINE_TYPE_GETTER)
87 #undef DEFINE_TYPE_GETTER
88
89 } // namespace ppapi
90