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// Copyright (c) 2006-2010 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.
// A Preconnect instance maintains state while a TCP/IP connection is made, and
// and then released into the pool of available connections for future use.
#ifndef CHROME_BROWSER_NET_PRECONNECT_H_
#define CHROME_BROWSER_NET_PRECONNECT_H_
#pragma once
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "chrome/browser/net/url_info.h"
#include "net/base/host_port_pair.h"
#include "net/http/http_request_info.h"
#include "net/http/stream_factory.h"
#include "net/socket/client_socket_handle.h"
#include "net/socket/tcp_client_socket_pool.h"
#include "net/url_request/url_request_context.h"
namespace net {
class ProxyInfo;
struct SSLConfig;
}
namespace chrome_browser_net {
class Preconnect : public net::StreamFactory::StreamRequestDelegate {
public:
// Try to preconnect. Typically motivated by OMNIBOX to reach search service.
static void PreconnectOnUIThread(const GURL& url,
UrlInfo::ResolutionMotivation motivation);
// Try to preconnect. Typically used by predictor when a subresource probably
// needs a connection.
static void PreconnectOnIOThread(const GURL& url,
UrlInfo::ResolutionMotivation motivation);
// StreamRequestDelegate interface
virtual void OnStreamReady(net::HttpStream* stream);
virtual void OnStreamFailed(int status);
virtual void OnCertificateError(int status, const net::SSLInfo& ssl_info);
virtual void OnNeedsProxyAuth(const net::HttpResponseInfo& proxy_response,
net::HttpAuthController* auth_controller);
virtual void OnNeedsClientAuth(net::SSLCertRequestInfo* cert_info);
private:
friend class base::RefCountedThreadSafe<Preconnect>;
explicit Preconnect(UrlInfo::ResolutionMotivation motivation)
: motivation_(motivation) {
}
virtual ~Preconnect() {}
// Request actual connection.
void Connect(const GURL& url);
// Generally either LEARNED_REFERAL_MOTIVATED or OMNIBOX_MOTIVATED to indicate
// why we were trying to do a preconnection.
const UrlInfo::ResolutionMotivation motivation_;
// HttpRequestInfo used for connecting.
scoped_ptr<net::HttpRequestInfo> request_info_;
// SSLConfig used for connecting.
scoped_ptr<net::SSLConfig> ssl_config_;
// ProxyInfo used for connecting.
scoped_ptr<net::ProxyInfo> proxy_info_;
// A net log to use for this preconnect.
net::BoundNetLog net_log_;
// Our preconnect.
scoped_refptr<net::StreamFactory::StreamRequestJob> stream_request_job_;
DISALLOW_COPY_AND_ASSIGN(Preconnect);
};
} // chrome_browser_net
#endif // CHROME_BROWSER_NET_PRECONNECT_H_
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