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// Copyright (c) 2012 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 CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_NETLOG_OBSERVER_H_
#define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_NETLOG_OBSERVER_H_
#include "base/hash_tables.h"
#include "base/memory/ref_counted.h"
#include "net/base/net_log.h"
#include "webkit/glue/resource_loader_bridge.h"
namespace net {
class URLRequest;
} // namespace net
namespace content {
struct ResourceResponse;
// DevToolsNetLogObserver watches the NetLog event stream and collects the
// stuff that may be of interest to DevTools. Currently, this only includes
// actual HTTP/SPDY headers sent and received over the network.
//
// As DevToolsNetLogObserver shares live data with objects that live on the
// IO Thread, it must also reside on the IO Thread. Only OnAddEntry can be
// called from other threads.
class DevToolsNetLogObserver : public net::NetLog::ThreadSafeObserver {
typedef webkit_glue::ResourceDevToolsInfo ResourceInfo;
public:
// net::NetLog::ThreadSafeObserver implementation:
virtual void OnAddEntry(const net::NetLog::Entry& entry) OVERRIDE;
void OnAddURLRequestEntry(const net::NetLog::Entry& entry);
void OnAddHTTPStreamJobEntry(const net::NetLog::Entry& entry);
void OnAddSocketEntry(const net::NetLog::Entry& entry);
static void Attach();
static void Detach();
// Must be called on the IO thread. May return NULL if no observers
// are active.
static DevToolsNetLogObserver* GetInstance();
static void PopulateResponseInfo(net::URLRequest*,
ResourceResponse*);
static int GetAndResetEncodedDataLength(net::URLRequest* request);
private:
static DevToolsNetLogObserver* instance_;
DevToolsNetLogObserver();
virtual ~DevToolsNetLogObserver();
ResourceInfo* GetResourceInfo(uint32 id);
typedef base::hash_map<uint32, scoped_refptr<ResourceInfo> > RequestToInfoMap;
typedef base::hash_map<uint32, int> RequestToEncodedDataLengthMap;
typedef base::hash_map<uint32, uint32> HTTPStreamJobToSocketMap;
typedef base::hash_map<uint32, uint32> SocketToRequestMap;
RequestToInfoMap request_to_info_;
RequestToEncodedDataLengthMap request_to_encoded_data_length_;
HTTPStreamJobToSocketMap http_stream_job_to_socket_;
SocketToRequestMap socket_to_request_;
DISALLOW_COPY_AND_ASSIGN(DevToolsNetLogObserver);
};
} // namespace content
#endif // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_NETLOG_OBSERVER_H_
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