| // Copyright (c) 2010 The Chromium OS 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 "crash-reporter/unclean_shutdown_collector.h" |
| |
| #include "base/file_util.h" |
| #include "base/logging.h" |
| |
| static const char kUncleanShutdownFile[] = |
| "/var/lib/crash_reporter/pending_clean_shutdown"; |
| |
| // Files created by power manager used for crash reporting. |
| static const char kPowerdTracePath[] = "/var/lib/power_manager"; |
| // Presence of this file indicates that the system was suspended |
| static const char kPowerdSuspended[] = "powerd_suspended"; |
| // Presence of this file indicates that the battery was critically low. |
| static const char kPowerdLowBattery[] = "powerd_low_battery"; |
| |
| using base::FilePath; |
| |
| UncleanShutdownCollector::UncleanShutdownCollector() |
| : unclean_shutdown_file_(kUncleanShutdownFile), |
| powerd_trace_path_(kPowerdTracePath), |
| powerd_suspended_file_(powerd_trace_path_.Append(kPowerdSuspended)), |
| powerd_low_battery_file_(powerd_trace_path_.Append(kPowerdLowBattery)) { |
| } |
| |
| UncleanShutdownCollector::~UncleanShutdownCollector() { |
| } |
| |
| bool UncleanShutdownCollector::Enable() { |
| FilePath file_path(unclean_shutdown_file_); |
| file_util::CreateDirectory(file_path.DirName()); |
| if (file_util::WriteFile(file_path, "", 0) != 0) { |
| LOG(ERROR) << "Unable to create shutdown check file"; |
| return false; |
| } |
| return true; |
| } |
| |
| bool UncleanShutdownCollector::DeleteUncleanShutdownFiles() { |
| if (!file_util::Delete(FilePath(unclean_shutdown_file_), false)) { |
| LOG(ERROR) << "Failed to delete unclean shutdown file " |
| << unclean_shutdown_file_; |
| return false; |
| } |
| // Delete power manager trace files if they exist. |
| file_util::Delete(powerd_suspended_file_, false); |
| file_util::Delete(powerd_low_battery_file_, false); |
| return true; |
| } |
| |
| bool UncleanShutdownCollector::Collect() { |
| FilePath unclean_file_path(unclean_shutdown_file_); |
| if (!file_util::PathExists(unclean_file_path)) { |
| return false; |
| } |
| LOG(WARNING) << "Last shutdown was not clean"; |
| if (DeadBatteryCausedUncleanShutdown()) { |
| DeleteUncleanShutdownFiles(); |
| return false; |
| } |
| DeleteUncleanShutdownFiles(); |
| |
| if (is_feedback_allowed_function_()) { |
| count_crash_function_(); |
| } |
| return true; |
| } |
| |
| bool UncleanShutdownCollector::Disable() { |
| LOG(INFO) << "Clean shutdown signalled"; |
| return DeleteUncleanShutdownFiles(); |
| } |
| |
| bool UncleanShutdownCollector::DeadBatteryCausedUncleanShutdown() |
| { |
| // Check for case of battery running out while suspended. |
| if (file_util::PathExists(powerd_suspended_file_)) { |
| LOG(INFO) << "Unclean shutdown occurred while suspended. Not counting " |
| << "toward unclean shutdown statistic."; |
| return true; |
| } |
| // Check for case of battery running out after resuming from a low-battery |
| // suspend. |
| if (file_util::PathExists(powerd_low_battery_file_)) { |
| LOG(INFO) << "Unclean shutdown occurred while running with battery " |
| << "critically low. Not counting toward unclean shutdown " |
| << "statistic."; |
| return true; |
| } |
| return false; |
| } |