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// Copyright (c) 2011 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.
#ifndef PPAPI_PROXY_PLUGIN_RESOURCE_TRACKER_H_
#define PPAPI_PROXY_PLUGIN_RESOURCE_TRACKER_H_
#include <map>
#include <utility>
#include "base/compiler_specific.h"
#include "ppapi/c/pp_completion_callback.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_stdint.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/proxy/plugin_var_tracker.h"
#include "ppapi/proxy/ppapi_proxy_export.h"
#include "ppapi/shared_impl/host_resource.h"
#include "ppapi/shared_impl/resource_tracker.h"
#include "ppapi/shared_impl/tracker_base.h"
template<typename T> struct DefaultSingletonTraits;
namespace ppapi {
class Var;
namespace proxy {
class PluginDispatcher;
class PPAPI_PROXY_EXPORT PluginResourceTracker : public TrackerBase,
public ResourceTracker {
public:
// Called by tests that want to specify a specific ResourceTracker. This
// allows them to use a unique one each time and avoids singletons sticking
// around across tests.
static void SetInstanceForTest(PluginResourceTracker* tracker);
// Returns the global singleton resource tracker for the plugin.
static PluginResourceTracker* GetInstance();
static TrackerBase* GetTrackerBaseInstance();
// Given a host resource, maps it to an existing plugin resource ID if it
// exists, or returns 0 on failure.
PP_Resource PluginResourceForHostResource(
const HostResource& resource) const;
PluginVarTracker& var_tracker() {
return var_tracker_test_override_ ? *var_tracker_test_override_
: var_tracker_;
}
void set_var_tracker_test_override(PluginVarTracker* t) {
var_tracker_test_override_ = t;
}
// TrackerBase.
virtual FunctionGroupBase* GetFunctionAPI(PP_Instance inst,
InterfaceID id) OVERRIDE;
virtual VarTracker* GetVarTracker() OVERRIDE;
virtual ResourceTracker* GetResourceTracker() OVERRIDE;
virtual PP_Module GetModuleForInstance(PP_Instance instance) OVERRIDE;
protected:
// ResourceTracker overrides.
virtual PP_Resource AddResource(Resource* object) OVERRIDE;
virtual void RemoveResource(Resource* object) OVERRIDE;
private:
friend struct DefaultSingletonTraits<PluginResourceTracker>;
friend class PluginResourceTrackerTest;
friend class PluginProxyTestHarness;
PluginResourceTracker();
virtual ~PluginResourceTracker();
// Use the var_tracker_test_override_ instead if it's non-NULL.
//
// TODO(brettw) this should be somehow separated out from here. I'm thinking
// of some global object that manages PPAPI globals, including separate var
// and resource trackers.
PluginVarTracker var_tracker_;
// Non-owning pointer to a var tracker mock used by tests. NULL when no
// test implementation is provided.
PluginVarTracker* var_tracker_test_override_;
// Map of host instance/resource pairs to a plugin resource ID.
typedef std::map<HostResource, PP_Resource> HostResourceMap;
HostResourceMap host_resource_map_;
DISALLOW_COPY_AND_ASSIGN(PluginResourceTracker);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_PLUGIN_RESOURCE_TRACKER_H_
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