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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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/device_event_log/device_event_log_impl.h" | 5 #include "components/device_event_log/device_event_log_impl.h" |
6 | 6 |
7 #include <cmath> | 7 #include <cmath> |
8 #include <list> | 8 #include <list> |
9 #include <set> | 9 #include <set> |
10 | 10 |
| 11 #include "base/bind.h" |
11 #include "base/containers/adapters.h" | 12 #include "base/containers/adapters.h" |
12 #include "base/json/json_string_value_serializer.h" | 13 #include "base/json/json_string_value_serializer.h" |
13 #include "base/json/json_writer.h" | 14 #include "base/json/json_writer.h" |
| 15 #include "base/location.h" |
14 #include "base/logging.h" | 16 #include "base/logging.h" |
15 #include "base/memory/scoped_ptr.h" | 17 #include "base/memory/scoped_ptr.h" |
16 #include "base/strings/string_tokenizer.h" | 18 #include "base/strings/string_tokenizer.h" |
17 #include "base/strings/string_util.h" | 19 #include "base/strings/string_util.h" |
18 #include "base/strings/stringprintf.h" | 20 #include "base/strings/stringprintf.h" |
19 #include "base/strings/utf_string_conversions.h" | 21 #include "base/strings/utf_string_conversions.h" |
20 #include "base/values.h" | 22 #include "base/values.h" |
21 #include "net/base/escape.h" | 23 #include "net/base/escape.h" |
22 | 24 |
23 namespace device_event_log { | 25 namespace device_event_log { |
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240 if (type != LOG_TYPE_UNKNOWN) | 242 if (type != LOG_TYPE_UNKNOWN) |
241 exclude_types->insert(type); | 243 exclude_types->insert(type); |
242 } else { | 244 } else { |
243 LogType type = LogTypeFromString(tok); | 245 LogType type = LogTypeFromString(tok); |
244 if (type != LOG_TYPE_UNKNOWN) | 246 if (type != LOG_TYPE_UNKNOWN) |
245 include_types->insert(type); | 247 include_types->insert(type); |
246 } | 248 } |
247 } | 249 } |
248 } | 250 } |
249 | 251 |
| 252 // Update count and time for identical events to avoid log spam. |
| 253 void IncreaseLogEntryCount(const DeviceEventLogImpl::LogEntry& new_entry, |
| 254 DeviceEventLogImpl::LogEntry* cur_entry) { |
| 255 ++cur_entry->count; |
| 256 cur_entry->log_level = std::min(cur_entry->log_level, new_entry.log_level); |
| 257 cur_entry->time = base::Time::Now(); |
| 258 } |
| 259 |
250 } // namespace | 260 } // namespace |
251 | 261 |
252 // static | 262 // static |
253 void DeviceEventLogImpl::SendToVLogOrErrorLog(const char* file, | 263 void DeviceEventLogImpl::SendToVLogOrErrorLog(const char* file, |
254 int file_line, | 264 int file_line, |
255 LogType log_type, | 265 LogType log_type, |
256 LogLevel log_level, | 266 LogLevel log_level, |
257 const std::string& event) { | 267 const std::string& event) { |
258 LogEntry entry(file, file_line, log_type, log_level, event); | 268 LogEntry entry(file, file_line, log_type, log_level, event); |
259 SendLogEntryToVLogOrErrorLog(entry); | 269 SendLogEntryToVLogOrErrorLog(entry); |
260 } | 270 } |
261 | 271 |
262 DeviceEventLogImpl::DeviceEventLogImpl(size_t max_entries) | 272 DeviceEventLogImpl::DeviceEventLogImpl( |
263 : max_entries_(max_entries) { | 273 scoped_refptr<base::SingleThreadTaskRunner> task_runner, |
| 274 size_t max_entries) |
| 275 : task_runner_(task_runner), |
| 276 max_entries_(max_entries), |
| 277 weak_ptr_factory_(this) { |
| 278 DCHECK(task_runner_); |
264 } | 279 } |
265 | 280 |
266 DeviceEventLogImpl::~DeviceEventLogImpl() { | 281 DeviceEventLogImpl::~DeviceEventLogImpl() { |
267 } | 282 } |
268 | 283 |
269 void DeviceEventLogImpl::AddEntry(const char* file, | 284 void DeviceEventLogImpl::AddEntry(const char* file, |
270 int file_line, | 285 int file_line, |
271 LogType log_type, | 286 LogType log_type, |
272 LogLevel log_level, | 287 LogLevel log_level, |
273 const std::string& event) { | 288 const std::string& event) { |
274 LogEntry entry(file, file_line, log_type, log_level, event); | 289 LogEntry entry(file, file_line, log_type, log_level, event); |
| 290 if (!task_runner_->RunsTasksOnCurrentThread()) { |
| 291 task_runner_->PostTask(FROM_HERE, |
| 292 base::Bind(&DeviceEventLogImpl::AddLogEntry, |
| 293 weak_ptr_factory_.GetWeakPtr(), entry)); |
| 294 return; |
| 295 } |
275 AddLogEntry(entry); | 296 AddLogEntry(entry); |
276 } | 297 } |
277 | 298 |
278 void DeviceEventLogImpl::AddLogEntry(const LogEntry& entry) { | 299 void DeviceEventLogImpl::AddLogEntry(const LogEntry& entry) { |
| 300 DCHECK(task_runner_->RunsTasksOnCurrentThread()); |
279 if (!entries_.empty()) { | 301 if (!entries_.empty()) { |
280 LogEntry& last = entries_.back(); | 302 LogEntry& last = entries_.back(); |
281 if (LogEntryMatches(last, entry)) { | 303 if (LogEntryMatches(last, entry)) { |
282 // Update count and time for identical events to avoid log spam. | 304 IncreaseLogEntryCount(entry, &last); |
283 ++last.count; | |
284 last.log_level = std::min(last.log_level, entry.log_level); | |
285 last.time = base::Time::Now(); | |
286 return; | 305 return; |
287 } | 306 } |
288 } | 307 } |
289 if (entries_.size() >= max_entries_) { | 308 if (entries_.size() >= max_entries_) |
290 const size_t max_error_entries = max_entries_ / 2; | 309 RemoveEntry(); |
291 // Remove the first (oldest) non-error entry, or the oldest entry if more | |
292 // than half the entries are errors. | |
293 size_t error_count = 0; | |
294 for (LogEntryList::iterator iter = entries_.begin(); iter != entries_.end(); | |
295 ++iter) { | |
296 if (iter->log_level != LOG_LEVEL_ERROR) { | |
297 entries_.erase(iter); | |
298 break; | |
299 } | |
300 if (++error_count > max_error_entries) { | |
301 // Too many error entries, remove the oldest entry. | |
302 entries_.pop_front(); | |
303 break; | |
304 } | |
305 } | |
306 } | |
307 entries_.push_back(entry); | 310 entries_.push_back(entry); |
308 SendLogEntryToVLogOrErrorLog(entry); | 311 SendLogEntryToVLogOrErrorLog(entry); |
309 } | 312 } |
310 | 313 |
| 314 void DeviceEventLogImpl::RemoveEntry() { |
| 315 const size_t max_error_entries = max_entries_ / 2; |
| 316 DCHECK(max_error_entries < entries_.size()); |
| 317 // Remove the first (oldest) non-error entry, or the oldest entry if more |
| 318 // than half the entries are errors. |
| 319 size_t error_count = 0; |
| 320 for (LogEntryList::iterator iter = entries_.begin(); iter != entries_.end(); |
| 321 ++iter) { |
| 322 if (iter->log_level != LOG_LEVEL_ERROR) { |
| 323 entries_.erase(iter); |
| 324 return; |
| 325 } |
| 326 if (++error_count > max_error_entries) |
| 327 break; |
| 328 } |
| 329 // Too many error entries, remove the oldest entry. |
| 330 entries_.pop_front(); |
| 331 } |
| 332 |
311 std::string DeviceEventLogImpl::GetAsString(StringOrder order, | 333 std::string DeviceEventLogImpl::GetAsString(StringOrder order, |
312 const std::string& format, | 334 const std::string& format, |
313 const std::string& types, | 335 const std::string& types, |
314 LogLevel max_level, | 336 LogLevel max_level, |
315 size_t max_events) { | 337 size_t max_events) { |
| 338 DCHECK(task_runner_->RunsTasksOnCurrentThread()); |
316 if (entries_.empty()) | 339 if (entries_.empty()) |
317 return "No Log Entries."; | 340 return "No Log Entries."; |
318 | 341 |
319 bool show_time, show_file, show_type, show_level, format_html, format_json; | 342 bool show_time, show_file, show_type, show_level, format_html, format_json; |
320 GetFormat(format, &show_time, &show_file, &show_type, &show_level, | 343 GetFormat(format, &show_time, &show_file, &show_type, &show_level, |
321 &format_html, &format_json); | 344 &format_html, &format_json); |
322 | 345 |
323 std::set<LogType> include_types, exclude_types; | 346 std::set<LogType> include_types, exclude_types; |
324 GetLogTypes(types, &include_types, &exclude_types); | 347 GetLogTypes(types, &include_types, &exclude_types); |
325 | 348 |
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401 if (filedesc) { | 424 if (filedesc) { |
402 file = filedesc; | 425 file = filedesc; |
403 size_t last_slash_pos = file.find_last_of("\\/"); | 426 size_t last_slash_pos = file.find_last_of("\\/"); |
404 if (last_slash_pos != std::string::npos) { | 427 if (last_slash_pos != std::string::npos) { |
405 file.erase(0, last_slash_pos + 1); | 428 file.erase(0, last_slash_pos + 1); |
406 } | 429 } |
407 } | 430 } |
408 } | 431 } |
409 | 432 |
410 } // namespace device_event_log | 433 } // namespace device_event_log |
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