// Copyright (c) 2012 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 "base/supports_user_data.h" namespace base { SupportsUserData::SupportsUserData() { // Harmless to construct on a different thread to subsequent usage. thread_checker_.DetachFromThread(); } SupportsUserData::Data* SupportsUserData::GetUserData(const void* key) const { DCHECK(thread_checker_.CalledOnValidThread()); DataMap::const_iterator found = user_data_.find(key); if (found != user_data_.end()) return found->second.get(); return NULL; } void SupportsUserData::SetUserData(const void* key, Data* data) { DCHECK(thread_checker_.CalledOnValidThread()); user_data_[key] = linked_ptr<Data>(data); } void SupportsUserData::RemoveUserData(const void* key) { DCHECK(thread_checker_.CalledOnValidThread()); user_data_.erase(key); } void SupportsUserData::DetachUserDataThread() { thread_checker_.DetachFromThread(); } SupportsUserData::~SupportsUserData() { DCHECK(thread_checker_.CalledOnValidThread() || user_data_.empty()); } } // namespace base