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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.
#ifndef NET_SPDY_SPDY_SESSION_POOL_H_
#define NET_SPDY_SPDY_SESSION_POOL_H_
#include <map>
#include <list>
#include <string>
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "net/base/host_resolver.h"
namespace net {
class ClientSocketHandle;
class HttpNetworkSession;
class SpdySession;
// This is a very simple pool for open SpdySessions.
// TODO(mbelshe): Make this production ready.
class SpdySessionPool : public base::RefCounted<SpdySessionPool> {
public:
SpdySessionPool();
// Either returns an existing SpdySession or creates a new SpdySession for
// use.
scoped_refptr<SpdySession> Get(
const HostResolver::RequestInfo& info, HttpNetworkSession* session);
// Builds a SpdySession from an existing SSL socket. Users should try
// calling Get() first to use an existing SpdySession so we don't get
// multiple SpdySessions per domain. Note that ownership of |connection| is
// transferred from the caller to the SpdySession.
scoped_refptr<SpdySession> GetSpdySessionFromSSLSocket(
const HostResolver::RequestInfo& info,
HttpNetworkSession* session,
ClientSocketHandle* connection);
// TODO(willchan): Consider renaming to HasReusableSession, since perhaps we
// should be creating a new session.
bool HasSession(const HostResolver::RequestInfo& info) const;
// Close all Spdy Sessions; used for debugging.
void CloseAllSessions();
private:
friend class base::RefCounted<SpdySessionPool>;
friend class SpdySession; // Needed for Remove().
friend class SpdySessionPoolPeer; // For testing.
typedef std::list<scoped_refptr<SpdySession> > SpdySessionList;
typedef std::map<std::string, SpdySessionList*> SpdySessionsMap;
virtual ~SpdySessionPool();
// Removes a SpdySession from the SpdySessionPool.
void Remove(const scoped_refptr<SpdySession>& session);
// Helper functions for manipulating the lists.
SpdySessionList* AddSessionList(const std::string& domain);
SpdySessionList* GetSessionList(const std::string& domain);
const SpdySessionList* GetSessionList(const std::string& domain) const;
void RemoveSessionList(const std::string& domain);
// This is our weak session pool - one session per domain.
SpdySessionsMap sessions_;
DISALLOW_COPY_AND_ASSIGN(SpdySessionPool);
};
} // namespace net
#endif // NET_SPDY_SPDY_SESSION_POOL_H_
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