First pass at adding http/backend cache to NetLog

net/disk_cache/entry_impl.h

 // 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.
 
 #ifndef NET_DISK_CACHE_ENTRY_IMPL_H_
 #define NET_DISK_CACHE_ENTRY_IMPL_H_
 #pragma once
 
 #include "base/scoped_ptr.h"
+#include "net/base/net_log.h"
 #include "net/disk_cache/disk_cache.h"
 #include "net/disk_cache/storage_block.h"
 #include "net/disk_cache/storage_block-inl.h"
 
 namespace disk_cache {
 
 class BackendImpl;
 class SparseControl;
 
 // This class implements the Entry interface. An object of this
@@ skipping 102 matching lines @@
   void IncrementIoCount();
   void DecrementIoCount();
 
   // Set the access times for this entry. This method provides support for
   // the upgrade tool.
   void SetTimes(base::Time last_used, base::Time last_modified);
 
   // Generates a histogram for the time spent working on this operation.
   void ReportIOTime(Operation op, const base::TimeTicks& start);
 
+  // Logs a begin event and enables logging for the EntryImpl.  Will also cause
+  // an end event to be logged on destruction.  The EntryImpl must have its key
+  // initialized before this is called.  |created| is true if the Entry was
+  // created rather than opened.
+  void BeginLogging(net::NetLog* net_log, bool created);
+
+  const net::BoundNetLog& net_log() const;
+
  private:
   enum {
      kNumStreams = 3
   };
   class UserBuffer;
 
   ~EntryImpl();
 
+  // Do all the work for ReadDataImpl and WriteDataImpl.  Implemented as
+  // separate functions to make logging of results simpler.
+  int InternalReadData(int index, int offset, net::IOBuffer* buf,
+                       int buf_len, CompletionCallback* callback);
+  int InternalWriteData(int index, int offset, net::IOBuffer* buf, int buf_len,
+                        CompletionCallback* callback, bool truncate);
+
   // Initializes the storage for an internal or external data block.
   bool CreateDataBlock(int index, int size);
 
   // Initializes the storage for an internal or external generic block.
   bool CreateBlock(int size, Addr* address);
 
   // Deletes the data pointed by address, maybe backed by files_[index].
   // Note that most likely the caller should delete (and store) the reference to
   // |address| *before* calling this method because we don't want to have an
   // entry using an address that is already free.
@@ skipping 63 matching lines @@
   BackendImpl* backend_;      // Back pointer to the cache.
   scoped_ptr<UserBuffer> user_buffers_[kNumStreams];  // Stores user data.
   // Files to store external user data and key.
   scoped_refptr<File> files_[kNumStreams + 1];
   mutable std::string key_;           // Copy of the key.
   int unreported_size_[kNumStreams];  // Bytes not reported yet to the backend.
   bool doomed_;               // True if this entry was removed from the cache.
   bool read_only_;            // True if not yet writing.
   scoped_ptr<SparseControl> sparse_;  // Support for sparse entries.
 
+  net::BoundNetLog net_log_;
+
   DISALLOW_COPY_AND_ASSIGN(EntryImpl);
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_ENTRY_IMPL_H_