src/chrome/browser/diagnostics/diagnostics_controller.cc

   1 // Copyright 2013 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 "chrome/browser/diagnostics/diagnostics_controller.h"
   6
   7 #include <string>
   8
   9 #include "base/command_line.h"
  10 #include "base/logging.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/metrics/histogram.h"
  13 #include "base/time/time.h"
  14 #include "chrome/browser/diagnostics/diagnostics_model.h"
  15 #include "chrome/browser/diagnostics/diagnostics_test.h"
  16 #include "chrome/browser/diagnostics/diagnostics_writer.h"
  17 #include "chrome/common/chrome_switches.h"
  18
  19 #if defined(OS_CHROMEOS)
  20 #include "chromeos/chromeos_switches.h"
  21 #endif
  22
  23 namespace diagnostics {
  24
  25 DiagnosticsController* DiagnosticsController::GetInstance() {
  26   return Singleton<DiagnosticsController>::get();
  27 }
  28
  29 DiagnosticsController::DiagnosticsController() : writer_(NULL) {}
  30
  31 DiagnosticsController::~DiagnosticsController() {}
  32
  33 const DiagnosticsModel& DiagnosticsController::GetResults() const {
  34   return *model_;
  35 }
  36
  37 bool DiagnosticsController::HasResults() {
  38   return (model_.get() && model_->GetTestRunCount() > 0);
  39 }
  40
  41 void DiagnosticsController::ClearResults() { model_.reset(); }
  42
  43 void DiagnosticsController::RecordRegularStartup() {
  44 #if defined(OS_CHROMEOS)  // Only collecting UMA stats on ChromeOS
  45   // Count the number of normal starts, so we can compare that with the number
  46   // of recovery runs to get a percentage.
  47   UMA_HISTOGRAM_ENUMERATION(
  48       "Diagnostics.RecoveryRun", RECOVERY_NOT_RUN, RECOVERY_RUN_METRICS_COUNT);
  49
  50   // For each of the test types, record a normal start (no diagnostics run), so
  51   // we have a common denominator.
  52   for (int i = 0; i < DIAGNOSTICS_TEST_ID_COUNT; ++i) {
  53     RecordUMARecoveryResult(static_cast<DiagnosticsTestId>(i), RESULT_NOT_RUN);
  54     RecordUMATestResult(static_cast<DiagnosticsTestId>(i), RESULT_NOT_RUN);
  55   }
  56 #endif
  57 }
  58
  59 // This entry point is called from early in startup when very few things have
  60 // been initialized, so be careful what you use.
  61 int DiagnosticsController::Run(const CommandLine& command_line,
  62                                DiagnosticsWriter* writer) {
  63   writer_ = writer;
  64
  65   model_.reset(MakeDiagnosticsModel(command_line));
  66   model_->RunAll(writer_);
  67
  68   return 0;
  69 }
  70
  71 // This entry point is called from early in startup when very few things have
  72 // been initialized, so be careful what you use.
  73 int DiagnosticsController::RunRecovery(const CommandLine& command_line,
  74                                        DiagnosticsWriter* writer) {
  75 // Separate out recoveries that we execute automatically as a result of a
  76 // crash from user-run recoveries.
  77 #if defined(OS_CHROMEOS)  // Only collecting UMA stats on ChromeOS
  78   if (command_line.HasSwitch(chromeos::switches::kLoginUser)) {
  79     UMA_HISTOGRAM_ENUMERATION("Diagnostics.RecoveryRun",
  80                               diagnostics::RECOVERY_CRASH_RUN,
  81                               diagnostics::RECOVERY_RUN_METRICS_COUNT);
  82   } else {
  83     UMA_HISTOGRAM_ENUMERATION("Diagnostics.RecoveryRun",
  84                               diagnostics::RECOVERY_USER_RUN,
  85                               diagnostics::RECOVERY_RUN_METRICS_COUNT);
  86   }
  87 #endif
  88
  89   if (!HasResults()) {
  90     if (writer) {
  91       writer->WriteInfoLine("No diagnostics have been run.");
  92       writer->OnAllRecoveryDone(model_.get());
  93     }
  94     return -1;
  95   }
  96
  97   writer_ = writer;
  98
  99   model_->RecoverAll(writer_);
 100   return 0;
 101 }
 102
 103 }  // namespace diagnostics