src/ppapi/cpp/resource.cc

   1 // Copyright (c) 2010 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/cpp/resource.h"
   6
   7 #include <algorithm>
   8
   9 #include "ppapi/cpp/logging.h"
  10 #include "ppapi/cpp/module.h"
  11
  12 namespace pp {
  13
  14 Resource::Resource() : pp_resource_(0) {
  15 }
  16
  17 Resource::Resource(const Resource& other) : pp_resource_(other.pp_resource_) {
  18   if (!is_null())
  19     Module::Get()->core()->AddRefResource(pp_resource_);
  20 }
  21
  22 Resource::~Resource() {
  23   if (!is_null())
  24     Module::Get()->core()->ReleaseResource(pp_resource_);
  25 }
  26
  27 Resource& Resource::operator=(const Resource& other) {
  28   if (!other.is_null())
  29     Module::Get()->core()->AddRefResource(other.pp_resource_);
  30   if (!is_null())
  31     Module::Get()->core()->ReleaseResource(pp_resource_);
  32   pp_resource_ = other.pp_resource_;
  33   return *this;
  34 }
  35
  36 PP_Resource Resource::detach() {
  37   PP_Resource ret = pp_resource_;
  38   pp_resource_ = 0;
  39   return ret;
  40 }
  41
  42 Resource::Resource(PP_Resource resource) : pp_resource_(resource) {
  43   if (!is_null())
  44     Module::Get()->core()->AddRefResource(pp_resource_);
  45 }
  46
  47 Resource::Resource(PassRef, PP_Resource resource) : pp_resource_(resource) {
  48 }
  49
  50 void Resource::PassRefFromConstructor(PP_Resource resource) {
  51   PP_DCHECK(!pp_resource_);
  52   pp_resource_ = resource;
  53 }
  54
  55 void Resource::Clear() {
  56   if (is_null())
  57     return;
  58   Module::Get()->core()->ReleaseResource(pp_resource_);
  59   pp_resource_ = 0;
  60 }
  61
  62 }  // namespace pp