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      1 // Copyright (c) 2011 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 "net/socket/client_socket_pool_histograms.h"
      6 
      7 #include <string>
      8 
      9 #include "base/metrics/field_trial.h"
     10 #include "base/metrics/histogram.h"
     11 #include "net/base/net_errors.h"
     12 #include "net/socket/client_socket_handle.h"
     13 
     14 namespace net {
     15 
     16 using base::Histogram;
     17 using base::HistogramBase;
     18 using base::LinearHistogram;
     19 using base::CustomHistogram;
     20 
     21 ClientSocketPoolHistograms::ClientSocketPoolHistograms(
     22     const std::string& pool_name)
     23     : is_http_proxy_connection_(false),
     24       is_socks_connection_(false) {
     25   // UMA_HISTOGRAM_ENUMERATION
     26   socket_type_ = LinearHistogram::FactoryGet("Net.SocketType_" + pool_name, 1,
     27       ClientSocketHandle::NUM_TYPES, ClientSocketHandle::NUM_TYPES + 1,
     28       HistogramBase::kUmaTargetedHistogramFlag);
     29   // UMA_HISTOGRAM_CUSTOM_TIMES
     30   request_time_ = Histogram::FactoryTimeGet(
     31       "Net.SocketRequestTime_" + pool_name,
     32       base::TimeDelta::FromMilliseconds(1),
     33       base::TimeDelta::FromMinutes(10),
     34       100, HistogramBase::kUmaTargetedHistogramFlag);
     35   // UMA_HISTOGRAM_CUSTOM_TIMES
     36   unused_idle_time_ = Histogram::FactoryTimeGet(
     37       "Net.SocketIdleTimeBeforeNextUse_UnusedSocket_" + pool_name,
     38       base::TimeDelta::FromMilliseconds(1),
     39       base::TimeDelta::FromMinutes(6),
     40       100, HistogramBase::kUmaTargetedHistogramFlag);
     41   // UMA_HISTOGRAM_CUSTOM_TIMES
     42   reused_idle_time_ = Histogram::FactoryTimeGet(
     43       "Net.SocketIdleTimeBeforeNextUse_ReusedSocket_" + pool_name,
     44       base::TimeDelta::FromMilliseconds(1),
     45       base::TimeDelta::FromMinutes(6),
     46       100, HistogramBase::kUmaTargetedHistogramFlag);
     47   // UMA_HISTOGRAM_CUSTOM_ENUMERATION
     48   error_code_ = CustomHistogram::FactoryGet(
     49       "Net.SocketInitErrorCodes_" + pool_name,
     50       GetAllErrorCodesForUma(),
     51       HistogramBase::kUmaTargetedHistogramFlag);
     52 
     53   if (pool_name == "HTTPProxy")
     54     is_http_proxy_connection_ = true;
     55   else if (pool_name == "SOCK")
     56     is_socks_connection_ = true;
     57 }
     58 
     59 ClientSocketPoolHistograms::~ClientSocketPoolHistograms() {
     60 }
     61 
     62 void ClientSocketPoolHistograms::AddSocketType(int type) const {
     63   socket_type_->Add(type);
     64 }
     65 
     66 void ClientSocketPoolHistograms::AddRequestTime(base::TimeDelta time) const {
     67   request_time_->AddTime(time);
     68 }
     69 
     70 void ClientSocketPoolHistograms::AddUnusedIdleTime(base::TimeDelta time) const {
     71   unused_idle_time_->AddTime(time);
     72 }
     73 
     74 void ClientSocketPoolHistograms::AddReusedIdleTime(base::TimeDelta time) const {
     75   reused_idle_time_->AddTime(time);
     76 }
     77 
     78 void ClientSocketPoolHistograms::AddErrorCode(int error_code) const {
     79   // Error codes are positive (since histograms expect positive sample values).
     80   error_code_->Add(-error_code);
     81 }
     82 
     83 }  // namespace net
     84