net/tools/gdig/file_net_log.cc

   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 #include <stdio.h>
   6
   7 #include "base/json/json_string_value_serializer.h"
   8 #include "base/logging.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/values.h"
  11 #include "net/tools/gdig/file_net_log.h"
  12
  13 namespace net {
  14
  15 FileNetLogObserver::FileNetLogObserver(FILE* destination)
  16     : destination_(destination) {
  17   DCHECK(destination != NULL);
  18 }
  19
  20 FileNetLogObserver::~FileNetLogObserver() {
  21 }
  22
  23 void FileNetLogObserver::OnAddEntry(const net::NetLog::Entry& entry) {
  24   // Only BoundNetLogs without a NetLog should have an invalid source.
  25   DCHECK(entry.source().IsValid());
  26
  27   const char* source = NetLog::SourceTypeToString(entry.source().type);
  28   const char* type = NetLog::EventTypeToString(entry.type());
  29
  30   scoped_ptr<base::Value> param_value(entry.ParametersToValue());
  31   std::string params;
  32   if (param_value.get() != NULL) {
  33     JSONStringValueSerializer serializer(&params);
  34     bool ret = serializer.Serialize(*param_value);
  35     DCHECK(ret);
  36   }
  37   base::Time now = base::Time::NowFromSystemTime();
  38   base::AutoLock lock(lock_);
  39   if (first_event_time_.is_null()) {
  40     first_event_time_ = now;
  41   }
  42   base::TimeDelta elapsed_time = now - first_event_time_;
  43   fprintf(destination_ , "%u\t%u\t%s\t%s\t%s\n",
  44           static_cast<unsigned>(elapsed_time.InMilliseconds()),
  45           entry.source().id, source, type, params.c_str());
  46 }
  47
  48 }  // namespace net