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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "chrome/browser/chrome_plugin_browsing_context.h"
#include "base/message_loop.h"
#include "base/singleton.h"
#include "chrome/browser/chrome_thread.h"
CPBrowsingContextManager* CPBrowsingContextManager::Instance() {
#ifndef NDEBUG
// IO loop is NULL in unit tests.
if (ChromeThread::GetMessageLoop(ChromeThread::IO)) {
DCHECK(MessageLoop::current() ==
ChromeThread::GetMessageLoop(ChromeThread::IO));
}
#endif
return Singleton<CPBrowsingContextManager>::get();
}
CPBrowsingContextManager::CPBrowsingContextManager() {
NotificationService::current()->AddObserver(
this, NOTIFY_URL_REQUEST_CONTEXT_RELEASED,
NotificationService::AllSources());
}
CPBrowsingContextManager::~CPBrowsingContextManager() {
// We don't remove ourselves as an observer because we are a Singleton object,
// and NotifcationService is likely gone by this point.
}
CPBrowsingContext CPBrowsingContextManager::Allocate(
URLRequestContext* context) {
int32 map_id = map_.Add(context);
return static_cast<CPBrowsingContext>(map_id);
}
URLRequestContext* CPBrowsingContextManager::ToURLRequestContext(
CPBrowsingContext id) {
return map_.Lookup(static_cast<int32>(id));
}
CPBrowsingContext CPBrowsingContextManager::Lookup(URLRequestContext* context) {
ReverseMap::const_iterator it = reverse_map_.find(context);
if (it == reverse_map_.end()) {
CPBrowsingContext id = Allocate(context);
reverse_map_[context] = id;
return id;
} else {
return it->second;
}
}
void CPBrowsingContextManager::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(type == NOTIFY_URL_REQUEST_CONTEXT_RELEASED);
URLRequestContext* context = Source<URLRequestContext>(source).ptr();
// Multiple CPBrowsingContexts may refer to the same URLRequestContext.
// Remove after collecting all entries, since removing may invalidate
// iterators.
std::vector<int32> ids_to_remove;
for (Map::const_iterator it = map_.begin(); it != map_.end(); ++it) {
if (it->second == context)
ids_to_remove.push_back(it->first);
}
for (size_t i = 0; i < ids_to_remove.size(); ++i) {
map_.Remove(ids_to_remove[i]);
}
reverse_map_.erase(context);
}
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