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1 /* | 1 /* |
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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47 #define WEBRTC_BASE_LOGGING_H_ | 47 #define WEBRTC_BASE_LOGGING_H_ |
48 | 48 |
49 #ifdef HAVE_CONFIG_H | 49 #ifdef HAVE_CONFIG_H |
50 #include "config.h" // NOLINT | 50 #include "config.h" // NOLINT |
51 #endif | 51 #endif |
52 | 52 |
53 #include <list> | 53 #include <list> |
54 #include <sstream> | 54 #include <sstream> |
55 #include <string> | 55 #include <string> |
56 #include <utility> | 56 #include <utility> |
| 57 |
57 #include "webrtc/base/basictypes.h" | 58 #include "webrtc/base/basictypes.h" |
58 #include "webrtc/base/criticalsection.h" | 59 #include "webrtc/base/constructormagic.h" |
59 #include "webrtc/base/thread_annotations.h" | 60 #include "webrtc/base/thread_annotations.h" |
60 | 61 |
61 namespace rtc { | 62 namespace rtc { |
62 | 63 |
63 /////////////////////////////////////////////////////////////////////////////// | 64 /////////////////////////////////////////////////////////////////////////////// |
64 // ConstantLabel can be used to easily generate string names from constant | 65 // ConstantLabel can be used to easily generate string names from constant |
65 // values. This can be useful for logging descriptive names of error messages. | 66 // values. This can be useful for logging descriptive names of error messages. |
66 // Usage: | 67 // Usage: |
67 // const ConstantLabel LIBRARY_ERRORS[] = { | 68 // const ConstantLabel LIBRARY_ERRORS[] = { |
68 // KLABEL(SOME_ERROR), | 69 // KLABEL(SOME_ERROR), |
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124 // Virtual sink interface that can receive log messages. | 125 // Virtual sink interface that can receive log messages. |
125 class LogSink { | 126 class LogSink { |
126 public: | 127 public: |
127 LogSink() {} | 128 LogSink() {} |
128 virtual ~LogSink() {} | 129 virtual ~LogSink() {} |
129 virtual void OnLogMessage(const std::string& message) = 0; | 130 virtual void OnLogMessage(const std::string& message) = 0; |
130 }; | 131 }; |
131 | 132 |
132 class LogMessage { | 133 class LogMessage { |
133 public: | 134 public: |
134 static const uint32_t WARN_SLOW_LOGS_DELAY = 50; // ms | |
135 | |
136 LogMessage(const char* file, int line, LoggingSeverity sev, | 135 LogMessage(const char* file, int line, LoggingSeverity sev, |
137 LogErrorContext err_ctx = ERRCTX_NONE, int err = 0, | 136 LogErrorContext err_ctx = ERRCTX_NONE, int err = 0, |
138 const char* module = NULL); | 137 const char* module = NULL); |
139 | 138 |
140 LogMessage(const char* file, | 139 LogMessage(const char* file, |
141 int line, | 140 int line, |
142 LoggingSeverity sev, | 141 LoggingSeverity sev, |
143 const std::string& tag); | 142 const std::string& tag); |
144 | 143 |
145 ~LogMessage(); | 144 ~LogMessage(); |
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189 | 188 |
190 // Parses the provided parameter stream to configure the options above. | 189 // Parses the provided parameter stream to configure the options above. |
191 // Useful for configuring logging from the command line. | 190 // Useful for configuring logging from the command line. |
192 static void ConfigureLogging(const char* params); | 191 static void ConfigureLogging(const char* params); |
193 | 192 |
194 private: | 193 private: |
195 typedef std::pair<LogSink*, LoggingSeverity> StreamAndSeverity; | 194 typedef std::pair<LogSink*, LoggingSeverity> StreamAndSeverity; |
196 typedef std::list<StreamAndSeverity> StreamList; | 195 typedef std::list<StreamAndSeverity> StreamList; |
197 | 196 |
198 // Updates min_sev_ appropriately when debug sinks change. | 197 // Updates min_sev_ appropriately when debug sinks change. |
199 static void UpdateMinLogSeverity() EXCLUSIVE_LOCKS_REQUIRED(crit_); | 198 static void UpdateMinLogSeverity(); |
200 | 199 |
201 // These write out the actual log messages. | 200 // These write out the actual log messages. |
202 static void OutputToDebug(const std::string& msg, | 201 static void OutputToDebug(const std::string& msg, |
203 LoggingSeverity severity, | 202 LoggingSeverity severity, |
204 const std::string& tag); | 203 const std::string& tag); |
205 | 204 |
206 // The ostream that buffers the formatted message before output | 205 // The ostream that buffers the formatted message before output |
207 std::ostringstream print_stream_; | 206 std::ostringstream print_stream_; |
208 | 207 |
209 // The severity level of this message | 208 // The severity level of this message |
210 LoggingSeverity severity_; | 209 LoggingSeverity severity_; |
211 | 210 |
212 // The Android debug output tag. | 211 // The Android debug output tag. |
213 std::string tag_; | 212 std::string tag_; |
214 | 213 |
215 // String data generated in the constructor, that should be appended to | 214 // String data generated in the constructor, that should be appended to |
216 // the message before output. | 215 // the message before output. |
217 std::string extra_; | 216 std::string extra_; |
218 | 217 |
219 // If time it takes to write to stream is more than this, log one | |
220 // additional warning about it. | |
221 uint32_t warn_slow_logs_delay_; | |
222 | |
223 // Global lock for the logging subsystem | |
224 static CriticalSection crit_; | |
225 | |
226 // dbg_sev_ is the thresholds for those output targets | 218 // dbg_sev_ is the thresholds for those output targets |
227 // min_sev_ is the minimum (most verbose) of those levels, and is used | 219 // min_sev_ is the minimum (most verbose) of those levels, and is used |
228 // as a short-circuit in the logging macros to identify messages that won't | 220 // as a short-circuit in the logging macros to identify messages that won't |
229 // be logged. | 221 // be logged. |
230 // ctx_sev_ is the minimum level at which file context is displayed | 222 // ctx_sev_ is the minimum level at which file context is displayed |
231 static LoggingSeverity min_sev_, dbg_sev_, ctx_sev_; | 223 static LoggingSeverity min_sev_, dbg_sev_, ctx_sev_; |
232 | 224 |
233 // The output streams and their associated severities | 225 // The output streams and their associated severities |
234 static StreamList streams_; | 226 static StreamList streams_; |
235 | 227 |
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359 #define PLOG(sev, err) \ | 351 #define PLOG(sev, err) \ |
360 LOG_ERR_EX(sev, err) | 352 LOG_ERR_EX(sev, err) |
361 | 353 |
362 // TODO(?): Add an "assert" wrapper that logs in the same manner. | 354 // TODO(?): Add an "assert" wrapper that logs in the same manner. |
363 | 355 |
364 #endif // LOG | 356 #endif // LOG |
365 | 357 |
366 } // namespace rtc | 358 } // namespace rtc |
367 | 359 |
368 #endif // WEBRTC_BASE_LOGGING_H_ | 360 #endif // WEBRTC_BASE_LOGGING_H_ |
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