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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "components/browser_watcher/stability_debugging.h" | 5 #include "components/browser_watcher/stability_debugging.h" |
| 6 | 6 |
| 7 #include <string> | |
| 8 | |
| 9 #include "base/debug/activity_tracker.h" | 7 #include "base/debug/activity_tracker.h" |
| 10 #include "base/feature_list.h" | |
| 11 #include "base/files/file.h" | |
| 12 #include "base/metrics/persistent_memory_allocator.h" | |
| 13 #include "base/path_service.h" | |
| 14 #include "base/process/process.h" | |
| 15 #include "base/strings/stringprintf.h" | |
| 16 #include "base/time/time.h" | |
| 17 #include "components/browser_watcher/features.h" | |
| 18 | 8 |
| 19 namespace browser_watcher { | 9 namespace browser_watcher { |
| 20 | 10 |
| 21 namespace { | |
| 22 | |
| 23 #if defined(OS_WIN) | |
| 24 bool GetCreationTime(const base::Process& process, base::Time* time) { | |
| 25 DCHECK(time); | |
| 26 | |
| 27 FILETIME creation_time = {}; | |
| 28 FILETIME ignore1 = {}; | |
| 29 FILETIME ignore2 = {}; | |
| 30 FILETIME ignore3 = {}; | |
| 31 if (!::GetProcessTimes(process.Handle(), &creation_time, &ignore1, &ignore2, | |
| 32 &ignore3)) { | |
| 33 return false; | |
| 34 } | |
| 35 *time = base::Time::FromFileTime(creation_time); | |
| 36 return true; | |
| 37 } | |
| 38 #endif // defined(OS_WIN) | |
| 39 | |
| 40 } // namespace | |
| 41 | |
| 42 #if defined(OS_WIN) | |
| 43 | |
| 44 base::FilePath GetStabilityDir(const base::FilePath& user_data_dir) { | |
| 45 return user_data_dir.AppendASCII("Stability"); | |
| 46 } | |
| 47 | |
| 48 bool GetStabilityFileForProcess(const base::Process& process, | |
| 49 const base::FilePath& user_data_dir, | |
| 50 base::FilePath* file_path) { | |
| 51 DCHECK(file_path); | |
| 52 base::FilePath stability_dir = GetStabilityDir(user_data_dir); | |
| 53 | |
| 54 // Build the name using the pid and creation time. On windows, this is unique | |
| 55 // even after the process exits. | |
| 56 base::Time creation_time; | |
| 57 if (!GetCreationTime(process, &creation_time)) | |
| 58 return false; | |
| 59 | |
| 60 std::string file_name = | |
| 61 base::StringPrintf("%u-%llu", process.Pid(), creation_time.ToJavaTime()); | |
| 62 *file_path = stability_dir.AppendASCII(file_name).AddExtension( | |
| 63 base::PersistentMemoryAllocator::kFileExtension); | |
| 64 return true; | |
| 65 } | |
| 66 | |
| 67 base::FilePath::StringType GetStabilityFilePattern() { | |
| 68 return base::FilePath::StringType(FILE_PATH_LITERAL("*-*")) + | |
| 69 base::PersistentMemoryAllocator::kFileExtension; | |
| 70 } | |
| 71 | |
| 72 void MarkStabilityFileForDeletion(const base::FilePath& user_data_dir) { | |
| 73 if (!base::FeatureList::IsEnabled( | |
| 74 browser_watcher::kStabilityDebuggingFeature)) { | |
| 75 return; | |
| 76 } | |
| 77 | |
| 78 base::FilePath stability_file; | |
| 79 if (!GetStabilityFileForProcess(base::Process::Current(), user_data_dir, | |
| 80 &stability_file)) { | |
| 81 // TODO(manzagop): add a metric for this. | |
| 82 return; | |
| 83 } | |
| 84 | |
| 85 // Open (with delete) and then immediately close the file by going out of | |
| 86 // scope. This should cause the stability debugging file to be deleted prior | |
| 87 // to the next execution. | |
| 88 base::File file(stability_file, base::File::FLAG_OPEN | | |
| 89 base::File::FLAG_READ | | |
| 90 base::File::FLAG_DELETE_ON_CLOSE); | |
| 91 } | |
| 92 #endif // defined(OS_WIN) | |
| 93 | |
| 94 void SetStabilityDataInt(base::StringPiece name, int64_t value) { | 11 void SetStabilityDataInt(base::StringPiece name, int64_t value) { |
| 95 base::debug::GlobalActivityTracker* global_tracker = | 12 base::debug::GlobalActivityTracker* global_tracker = |
| 96 base::debug::GlobalActivityTracker::Get(); | 13 base::debug::GlobalActivityTracker::Get(); |
| 97 if (!global_tracker) | 14 if (!global_tracker) |
| 98 return; // Activity tracking isn't enabled. | 15 return; // Activity tracking isn't enabled. |
| 99 | 16 |
| 100 global_tracker->process_data().SetInt(name, value); | 17 global_tracker->process_data().SetInt(name, value); |
| 101 } | 18 } |
| 102 | 19 |
| 103 } // namespace browser_watcher | 20 } // namespace browser_watcher |
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