41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/supports_user_data.h"
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namespace base {
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SupportsUserData::SupportsUserData() {
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// Harmless to construct on a different thread to subsequent usage.
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thread_checker_.DetachFromThread();
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}
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SupportsUserData::Data* SupportsUserData::GetUserData(const void* key) const {
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DCHECK(thread_checker_.CalledOnValidThread());
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DataMap::const_iterator found = user_data_.find(key);
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if (found != user_data_.end())
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return found->second.get();
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return NULL;
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}
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void SupportsUserData::SetUserData(const void* key, Data* data) {
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DCHECK(thread_checker_.CalledOnValidThread());
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user_data_[key] = linked_ptr<Data>(data);
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}
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void SupportsUserData::RemoveUserData(const void* key) {
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DCHECK(thread_checker_.CalledOnValidThread());
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user_data_.erase(key);
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}
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void SupportsUserData::DetachUserDataThread() {
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thread_checker_.DetachFromThread();
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}
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SupportsUserData::~SupportsUserData() {
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DCHECK(thread_checker_.CalledOnValidThread() || user_data_.empty());
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}
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} // namespace base
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