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// Copyright 2015 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 "ios/chrome/browser/metrics/mobile_session_shutdown_metrics_provider.h"
#include <Foundation/Foundation.h>
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "components/metrics/metrics_service.h"
#include "ios/chrome/browser/crash_report/breakpad_helper.h"
#import "ios/chrome/browser/crash_report/crash_report_background_uploader.h"
#import "ios/chrome/browser/metrics/previous_session_info.h"
namespace {
// Logs |type| in the shutdown type histogram.
void LogShutdownType(MobileSessionShutdownType type) {
UMA_STABILITY_HISTOGRAM_ENUMERATION("Stability.MobileSessionShutdownType",
type, MOBILE_SESSION_SHUTDOWN_TYPE_COUNT);
}
} // namespace
MobileSessionShutdownMetricsProvider::MobileSessionShutdownMetricsProvider(
metrics::MetricsService* metrics_service)
: metrics_service_(metrics_service) {
DCHECK(metrics_service_);
}
MobileSessionShutdownMetricsProvider::~MobileSessionShutdownMetricsProvider() {}
bool MobileSessionShutdownMetricsProvider::HasInitialStabilityMetrics() {
return true;
}
void MobileSessionShutdownMetricsProvider::ProvideInitialStabilityMetrics(
metrics::SystemProfileProto* system_profile_proto) {
// If this is the first launch after an upgrade, existing crash reports may
// have been deleted before this code runs, so log this case in its own
// bucket.
if (IsFirstLaunchAfterUpgrade()) {
LogShutdownType(FIRST_LAUNCH_AFTER_UPGRADE);
return;
}
// If the last app lifetime did not end with a crash, then log it as a normal
// shutdown while in the background.
if (metrics_service_->WasLastShutdownClean()) {
LogShutdownType(SHUTDOWN_IN_BACKGROUND);
return;
}
// If the last app lifetime ended in a crash, log the type of crash.
MobileSessionShutdownType shutdown_type;
const bool with_crash_log =
HasUploadedCrashReportsInBackground() || HasCrashLogs();
if (ReceivedMemoryWarningBeforeLastShutdown()) {
if (with_crash_log) {
shutdown_type = SHUTDOWN_IN_FOREGROUND_WITH_CRASH_LOG_WITH_MEMORY_WARNING;
} else {
shutdown_type = SHUTDOWN_IN_FOREGROUND_NO_CRASH_LOG_WITH_MEMORY_WARNING;
}
} else {
if (with_crash_log) {
shutdown_type = SHUTDOWN_IN_FOREGROUND_WITH_CRASH_LOG_NO_MEMORY_WARNING;
} else {
shutdown_type = SHUTDOWN_IN_FOREGROUND_NO_CRASH_LOG_NO_MEMORY_WARNING;
}
}
LogShutdownType(shutdown_type);
}
bool MobileSessionShutdownMetricsProvider::IsFirstLaunchAfterUpgrade() {
return [[PreviousSessionInfo sharedInstance] isFirstSessionAfterUpgrade];
}
bool MobileSessionShutdownMetricsProvider::HasCrashLogs() {
return breakpad_helper::HasReportToUpload();
}
bool MobileSessionShutdownMetricsProvider::
HasUploadedCrashReportsInBackground() {
return [CrashReportBackgroundUploader hasUploadedCrashReportsInBackground];
}
bool MobileSessionShutdownMetricsProvider::
ReceivedMemoryWarningBeforeLastShutdown() {
return [[PreviousSessionInfo sharedInstance]
didSeeMemoryWarningShortlyBeforeTerminating];
}
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