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// Copyright (c) 2009 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 "net/flip/flip_session_pool.h"
#include "base/logging.h"
#include "net/flip/flip_session.h"
namespace net {
// The maximum number of sessions to open to a single domain.
const int kMaxSessionsPerDomain = 1;
scoped_ptr<FlipSessionPool::FlipSessionsMap> FlipSessionPool::sessions_;
FlipSession* FlipSessionPool::Get(const HostResolver::RequestInfo& info,
HttpNetworkSession* session) {
if (!sessions_.get())
sessions_.reset(new FlipSessionsMap());
const std::string domain = info.hostname();
FlipSession* flip_session = NULL;
FlipSessionList* list = GetSessionList(domain);
if (list) {
if (list->size() >= kMaxSessionsPerDomain) {
flip_session = list->front();
list->pop_front();
}
} else {
list = AddSessionList(domain);
}
DCHECK(list);
if (!flip_session) {
flip_session = new FlipSession(domain, session);
flip_session->AddRef(); // Keep it in the cache.
}
DCHECK(flip_session);
list->push_back(flip_session);
DCHECK(list->size() <= kMaxSessionsPerDomain);
return flip_session;
}
void FlipSessionPool::Remove(FlipSession* session) {
std::string domain = session->domain();
FlipSessionList* list = GetSessionList(domain);
if (list == NULL)
return;
list->remove(session);
if (!list->size())
RemoveSessionList(domain);
}
FlipSessionPool::FlipSessionList*
FlipSessionPool::AddSessionList(std::string domain) {
DCHECK(sessions_->find(domain) == sessions_->end());
return (*sessions_)[domain] = new FlipSessionList();
}
// static
FlipSessionPool::FlipSessionList*
FlipSessionPool::GetSessionList(std::string domain) {
FlipSessionsMap::iterator it = sessions_->find(domain);
if (it == sessions_->end())
return NULL;
return it->second;
}
// static
void FlipSessionPool::RemoveSessionList(std::string domain) {
FlipSessionList* list = GetSessionList(domain);
if (list) {
delete list;
sessions_->erase(domain);
} else {
DCHECK(false) << "removing orphaned session list";
}
}
// static
void FlipSessionPool::CloseAllSessions() {
while (sessions_.get() && sessions_->size()) {
FlipSessionList* list = sessions_->begin()->second;
DCHECK(list);
sessions_->erase(sessions_->begin()->first);
while (list->size()) {
FlipSession* session = list->front();
list->pop_front();
session->CloseAllStreams(net::OK);
session->Release();
}
delete list;
}
}
} // namespace net
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