From 4bcab1c571c6b11a51e4493e3387733a6c95bbac Mon Sep 17 00:00:00 2001
From: "brettw@chromium.org"
 <brettw@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>
Date: Wed, 3 Nov 2010 03:10:13 +0000
Subject: Core PPAPI proxy files. This includes the dispatcher which is the
 control point on each end of the IPC channel. It includes the IPC message
 definitions. It also includes the base class for the interface proxying, and
 the core resource and var tracking.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/4229002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@64869 0039d316-1c4b-4281-b951-d872f2087c98
---
 ppapi/proxy/plugin_resource_tracker.cc | 87 ++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 ppapi/proxy/plugin_resource_tracker.cc

(limited to 'ppapi/proxy/plugin_resource_tracker.cc')

diff --git a/ppapi/proxy/plugin_resource_tracker.cc b/ppapi/proxy/plugin_resource_tracker.cc
new file mode 100644
index 0000000..a285311
--- /dev/null
+++ b/ppapi/proxy/plugin_resource_tracker.cc
@@ -0,0 +1,87 @@
+// Copyright (c) 2010 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.
+
+#include "ppapi/proxy/plugin_resource_tracker.h"
+
+#include "base/logging.h"
+#include "ppapi/proxy/plugin_dispatcher.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/proxy/plugin_resource.h"
+#include "ppapi/proxy/serialized_var.h"
+
+namespace pp {
+namespace proxy {
+
+PluginResourceTracker::ResourceInfo::ResourceInfo() : ref_count(0) {
+}
+
+PluginResourceTracker::ResourceInfo::ResourceInfo(int rc,
+                                                  linked_ptr<PluginResource> r)
+    : ref_count(rc),
+      resource(r) {
+}
+
+PluginResourceTracker::ResourceInfo::ResourceInfo(const ResourceInfo& other)
+    : ref_count(other.ref_count),
+      resource(other.resource) {
+}
+
+PluginResourceTracker::ResourceInfo::~ResourceInfo() {
+}
+
+PluginResourceTracker::ResourceInfo&
+PluginResourceTracker::ResourceInfo::operator=(
+    const ResourceInfo& other) {
+  ref_count = other.ref_count;
+  resource = other.resource;
+  return *this;
+}
+
+PluginResourceTracker::PluginResourceTracker(PluginDispatcher* dispatcher)
+    : dispatcher_(dispatcher) {
+}
+
+PluginResourceTracker::~PluginResourceTracker() {
+}
+
+PluginResource* PluginResourceTracker::GetResourceObject(
+    PP_Resource pp_resource) {
+  ResourceMap::iterator found = resource_map_.find(pp_resource);
+  if (found == resource_map_.end())
+    return NULL;
+  return found->second.resource.get();
+}
+
+void PluginResourceTracker::AddResource(PP_Resource pp_resource,
+                                        linked_ptr<PluginResource> object) {
+  DCHECK(resource_map_.find(pp_resource) == resource_map_.end());
+  resource_map_[pp_resource] = ResourceInfo(1, object);
+}
+
+void PluginResourceTracker::AddRefResource(PP_Resource resource) {
+  resource_map_[resource].ref_count++;
+}
+
+void PluginResourceTracker::ReleaseResource(PP_Resource resource) {
+  ReleasePluginResourceRef(resource, true);
+}
+
+void PluginResourceTracker::ReleasePluginResourceRef(
+    const PP_Resource& resource,
+    bool notify_browser_on_release) {
+  ResourceMap::iterator found = resource_map_.find(resource);
+  if (found == resource_map_.end())
+    return;
+  found->second.ref_count--;
+  if (found->second.ref_count == 0) {
+    if (notify_browser_on_release) {
+      dispatcher_->Send(new PpapiHostMsg_PPBCore_ReleaseResource(
+          INTERFACE_ID_PPB_CORE, resource));
+    }
+    resource_map_.erase(found);
+  }
+}
+
+}  // namespace proxy
+}  // namespace pp
-- 
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