15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/scoped_pp_resource.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/ppapi_globals.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/resource.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/shared_impl/resource_tracker.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ppapi { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 13a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ScopedPPResource::ScopedPPResource() : id_(0) {} 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedPPResource::ScopedPPResource(PP_Resource resource) : id_(resource) { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CallAddRef(); 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedPPResource::ScopedPPResource(const PassRef&, PP_Resource resource) 20a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) : id_(resource) {} 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedPPResource::ScopedPPResource(Resource* resource) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : id_(resource ? resource->GetReference() : 0) { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GetReference AddRef's for us. 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedPPResource::ScopedPPResource(const ScopedPPResource& other) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : id_(other.id_) { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CallAddRef(); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 32a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)ScopedPPResource::~ScopedPPResource() { CallRelease(); } 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedPPResource& ScopedPPResource::operator=(PP_Resource resource) { 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (id_ == resource) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; // Be careful about self-assignment. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CallRelease(); 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) id_ = resource; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CallAddRef(); 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedPPResource& ScopedPPResource::operator=( 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const ScopedPPResource& resource) { 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (id_ == resource.id_) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; // Be careful about self-assignment. 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CallRelease(); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) id_ = resource.id_; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CallAddRef(); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PP_Resource ScopedPPResource::Release() { 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // We do NOT call CallRelease, because we want to pass our reference to the 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // caller. 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_Resource ret = id_; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) id_ = 0; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ret; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedPPResource::CallAddRef() { 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (id_) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(id_); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedPPResource::CallRelease() { 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (id_) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(id_); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ppapi 73