content/browser/devtools/devtools_netlog_observer.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_NETLOG_OBSERVER_H_
   6 #define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_NETLOG_OBSERVER_H_
   7
   8 #include "base/containers/hash_tables.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "content/public/common/resource_devtools_info.h"
  11 #include "net/base/net_log.h"
  12
  13 namespace net {
  14 class URLRequest;
  15 }  // namespace net
  16
  17 namespace content {
  18 struct ResourceResponse;
  19
  20 // DevToolsNetLogObserver watches the NetLog event stream and collects the
  21 // stuff that may be of interest to DevTools. Currently, this only includes
  22 // actual HTTP/SPDY headers sent and received over the network.
  23 //
  24 // As DevToolsNetLogObserver shares live data with objects that live on the
  25 // IO Thread, it must also reside on the IO Thread.  Only OnAddEntry can be
  26 // called from other threads.
  27 class DevToolsNetLogObserver : public net::NetLog::ThreadSafeObserver {
  28   typedef ResourceDevToolsInfo ResourceInfo;
  29
  30  public:
  31   // net::NetLog::ThreadSafeObserver implementation:
  32   virtual void OnAddEntry(const net::NetLog::Entry& entry) OVERRIDE;
  33
  34   void OnAddURLRequestEntry(const net::NetLog::Entry& entry);
  35
  36   static void Attach();
  37   static void Detach();
  38
  39   // Must be called on the IO thread. May return NULL if no observers
  40   // are active.
  41   static DevToolsNetLogObserver* GetInstance();
  42   static void PopulateResponseInfo(net::URLRequest*,
  43                                    ResourceResponse*);
  44
  45  private:
  46   static DevToolsNetLogObserver* instance_;
  47
  48   DevToolsNetLogObserver();
  49   virtual ~DevToolsNetLogObserver();
  50
  51   ResourceInfo* GetResourceInfo(uint32 id);
  52
  53   typedef base::hash_map<uint32, scoped_refptr<ResourceInfo> > RequestToInfoMap;
  54   RequestToInfoMap request_to_info_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(DevToolsNetLogObserver);
  57 };
  58
  59 }  // namespace content
  60
  61 #endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_NETLOG_OBSERVER_H_