NetLogEventParameter to Callback refactoring 2.

net/disk_cache/net_log_parameters.cc

 // 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.
 
 #include "net/disk_cache/net_log_parameters.h"
 
+#include "base/bind.h"
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/values.h"
 #include "net/base/net_errors.h"
+#include "net/disk_cache/disk_cache.h"
 
-namespace disk_cache {
+namespace {
 
-EntryCreationParameters::EntryCreationParameters(
-    const std::string& key,
-    bool created)
-    : key_(key),
-      created_(created) {
-}
-
-Value* EntryCreationParameters::ToValue() const {
+Value* NetLogEntryCreationCallback(const disk_cache::Entry* entry,
+                                   bool created,
+                                   net::NetLog::LogLevel /* log_level */) {
   DictionaryValue* dict = new DictionaryValue();
-  dict->SetString("key", key_);
-  dict->SetBoolean("created", created_);
+  dict->SetString("key", entry->GetKey());
+  dict->SetBoolean("created", created);
   return dict;
 }
 
-EntryCreationParameters::~EntryCreationParameters() {}
-
-ReadWriteDataParameters::ReadWriteDataParameters(
-    int index,
-    int offset,
-    int buf_len,
-    bool truncate)
-    : index_(index),
-      offset_(offset),
-      buf_len_(buf_len),
-      truncate_(truncate) {
-}
-
-Value* ReadWriteDataParameters::ToValue() const {
+Value* NetLogReadWriteDataCallback(int index,
+                                   int offset,
+                                   int buf_len,
+                                   bool truncate,
+                                   net::NetLog::LogLevel /* log_level */) {
   DictionaryValue* dict = new DictionaryValue();
-  dict->SetInteger("index", index_);
-  dict->SetInteger("offset", offset_);
-  dict->SetInteger("buf_len", buf_len_);
-  if (truncate_)
-    dict->SetBoolean("truncate", truncate_);
+  dict->SetInteger("index", index);
+  dict->SetInteger("offset", offset);
+  dict->SetInteger("buf_len", buf_len);
+  if (truncate)
+    dict->SetBoolean("truncate", truncate);
   return dict;
 }
 
-ReadWriteDataParameters::~ReadWriteDataParameters() {}
-
-// NetLog parameters logged when non-sparse reads and writes complete.
-ReadWriteCompleteParameters::ReadWriteCompleteParameters(int bytes_copied)
-    : bytes_copied_(bytes_copied) {
-}
-
-Value* ReadWriteCompleteParameters::ToValue() const {
-  DCHECK_NE(bytes_copied_, net::ERR_IO_PENDING);
+Value* NetLogReadWriteCompleteCallback(int bytes_copied,
+                                       net::NetLog::LogLevel /* log_level */) {
+  DCHECK_NE(bytes_copied, net::ERR_IO_PENDING);
   DictionaryValue* dict = new DictionaryValue();
-  if (bytes_copied_ < 0) {
-    dict->SetInteger("net_error", bytes_copied_);
+  if (bytes_copied < 0) {
+    dict->SetInteger("net_error", bytes_copied);
   } else {
-    dict->SetInteger("bytes_copied", bytes_copied_);
+    dict->SetInteger("bytes_copied", bytes_copied);
   }
   return dict;
 }
 
-ReadWriteCompleteParameters::~ReadWriteCompleteParameters() {}
-
-SparseOperationParameters::SparseOperationParameters(
-    int64 offset,
-    int buff_len)
-    : offset_(offset),
-      buff_len_(buff_len) {
-}
-
-Value* SparseOperationParameters::ToValue() const {
+Value* NetLogSparseOperationCallback(int64 offset,
+                                     int buff_len,
+                                     net::NetLog::LogLevel /* log_level */) {
   DictionaryValue* dict = new DictionaryValue();
   // Values can only be created with at most 32-bit integers.  Using a string
   // instead circumvents that restriction.
-  dict->SetString("offset", base::Int64ToString(offset_));
-  dict->SetInteger("buff_len", buff_len_);
+  dict->SetString("offset", base::Int64ToString(offset));
+  dict->SetInteger("buff_len", buff_len);
   return dict;
 }
 
-SparseOperationParameters::~SparseOperationParameters() {}
-
-SparseReadWriteParameters::SparseReadWriteParameters(
-    const net::NetLog::Source& source,
-    int child_len)
-    : source_(source),
-      child_len_(child_len) {
-}
-
-Value* SparseReadWriteParameters::ToValue() const {
+Value* NetLogSparseReadWriteCallback(const net::NetLog::Source& source,
+                                     int child_len,
+                                     net::NetLog::LogLevel /* log_level */) {
   DictionaryValue* dict = new DictionaryValue();
-  dict->Set("source_dependency", source_.ToValue());
-  dict->SetInteger("child_len", child_len_);
+  source.AddToEventParameters(dict);
+  dict->SetInteger("child_len", child_len);
   return dict;
 }
 
-SparseReadWriteParameters::~SparseReadWriteParameters() {}
-
-GetAvailableRangeResultParameters::GetAvailableRangeResultParameters(
+Value* NetLogGetAvailableRangeResultCallback(
     int64 start,
-    int result)
-    : start_(start),
-      result_(result) {
-}
-
-Value* GetAvailableRangeResultParameters::ToValue() const {
+    int result,
+    net::NetLog::LogLevel /* log_level */) {
   DictionaryValue* dict = new DictionaryValue();
-  if (result_ > 0) {
-    dict->SetInteger("length", result_);
-    dict->SetString("start",  base::Int64ToString(start_));
+  if (result > 0) {
+    dict->SetInteger("length", result);
+    dict->SetString("start",  base::Int64ToString(start));
   } else {
-    dict->SetInteger("net_error", result_);
+    dict->SetInteger("net_error", result);
   }
   return dict;
 }
 
-GetAvailableRangeResultParameters::~GetAvailableRangeResultParameters() {}
+}  // namespace
+
+namespace disk_cache {
+
+net::NetLog::ParametersCallback CreateNetLogEntryCreationCallback(
+    const Entry* entry,
+    bool created) {
+  DCHECK(entry);
+  return base::Bind(&NetLogEntryCreationCallback, entry, created);
+}
+
+net::NetLog::ParametersCallback CreateNetLogReadWriteDataCallback(
+    int index,
+    int offset,
+    int buf_len,
+    bool truncate) {
+  return base::Bind(&NetLogReadWriteDataCallback,
+                    index, offset, buf_len, truncate);
+}
+
+net::NetLog::ParametersCallback CreateNetLogReadWriteCompleteCallback(
+    int bytes_copied) {
+  return base::Bind(&NetLogReadWriteCompleteCallback, bytes_copied);
+}
+
+net::NetLog::ParametersCallback CreateNetLogSparseOperationCallback(
+    int64 offset,
+    int buff_len) {
+  return base::Bind(&NetLogSparseOperationCallback, offset, buff_len);
+}
+
+net::NetLog::ParametersCallback CreateNetLogSparseReadWriteCallback(
+    const net::NetLog::Source& source,
+    int child_len) {
+  return base::Bind(&NetLogSparseReadWriteCallback, source, child_len);
+}
+
+net::NetLog::ParametersCallback CreateNetLogGetAvailableRangeResultCallback(
+    int64 start,
+    int result) {
+  return base::Bind(&NetLogGetAvailableRangeResultCallback, start, result);
+}
 
 }  // namespace disk_cache

[eroman, 2012/06/12 16:54:07]

I wonder why disk_cache isn't inside of the net:: namespace?

[mmenke, 2012/06/12 16:59:09]

I don't think I've seen any nested namespaces used in Chrome.  Suspect that's
why.