1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
|
/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.util;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.compat.annotation.UnsupportedAppUsage;
import android.os.Build;
/**
* API for sending log output to the {@link Log#LOG_ID_SYSTEM} buffer.
*
* <p>Should be used by system components. Use {@code adb logcat --buffer=system} to fetch the logs.
*
* @see Log
* @hide
*/
@SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
public final class Slog {
private Slog() {
}
/**
* Logs {@code msg} at {@link Log#VERBOSE} level.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
*
* @see Log#v(String, String)
*/
@UnsupportedAppUsage
public static int v(@Nullable String tag, @NonNull String msg) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.VERBOSE, tag, msg);
}
/**
* Logs {@code msg} at {@link Log#VERBOSE} level, attaching stack trace of the {@code tr} to
* the end of the log statement.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
* @param tr an exception to log.
*
* @see Log#v(String, String, Throwable)
*/
public static int v(@Nullable String tag, @NonNull String msg, @Nullable Throwable tr) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.VERBOSE, tag,
msg + '\n' + Log.getStackTraceString(tr));
}
/**
* Logs {@code msg} at {@link Log#DEBUG} level.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
*
* @see Log#d(String, String)
*/
@UnsupportedAppUsage
public static int d(@Nullable String tag, @NonNull String msg) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.DEBUG, tag, msg);
}
/**
* Logs {@code msg} at {@link Log#DEBUG} level, attaching stack trace of the {@code tr} to
* the end of the log statement.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
* @param tr an exception to log.
*
* @see Log#d(String, String, Throwable)
*/
@UnsupportedAppUsage
public static int d(@Nullable String tag, @NonNull String msg, @Nullable Throwable tr) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.DEBUG, tag,
msg + '\n' + Log.getStackTraceString(tr));
}
/**
* Logs {@code msg} at {@link Log#INFO} level.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
*
* @see Log#i(String, String)
*/
@UnsupportedAppUsage
public static int i(@Nullable String tag, @NonNull String msg) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.INFO, tag, msg);
}
/**
* Logs {@code msg} at {@link Log#INFO} level, attaching stack trace of the {@code tr} to
* the end of the log statement.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
* @param tr an exception to log.
*
* @see Log#i(String, String, Throwable)
*/
public static int i(@Nullable String tag, @NonNull String msg, @Nullable Throwable tr) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.INFO, tag,
msg + '\n' + Log.getStackTraceString(tr));
}
/**
* Logs {@code msg} at {@link Log#WARN} level.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
*
* @see Log#w(String, String)
*/
@UnsupportedAppUsage
public static int w(@Nullable String tag, @NonNull String msg) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.WARN, tag, msg);
}
/**
* Logs {@code msg} at {@link Log#WARN} level, attaching stack trace of the {@code tr} to
* the end of the log statement.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
* @param tr an exception to log.
*
* @see Log#w(String, String, Throwable)
*/
@UnsupportedAppUsage
public static int w(@Nullable String tag, @NonNull String msg, @Nullable Throwable tr) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.WARN, tag,
msg + '\n' + Log.getStackTraceString(tr));
}
/**
* Logs stack trace of {@code tr} at {@link Log#WARN} level.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param tr an exception to log.
*
* @see Log#w(String, Throwable)
*/
public static int w(@Nullable String tag, @Nullable Throwable tr) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.WARN, tag, Log.getStackTraceString(tr));
}
/**
* Logs {@code msg} at {@link Log#ERROR} level.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
*
* @see Log#e(String, String)
*/
@UnsupportedAppUsage
public static int e(@Nullable String tag, @NonNull String msg) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.ERROR, tag, msg);
}
/**
* Logs {@code msg} at {@link Log#ERROR} level, attaching stack trace of the {@code tr} to
* the end of the log statement.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
* @param tr an exception to log.
*
* @see Log#e(String, String, Throwable)
*/
@UnsupportedAppUsage
public static int e(@Nullable String tag, @NonNull String msg, @Nullable Throwable tr) {
return Log.println_native(Log.LOG_ID_SYSTEM, Log.ERROR, tag,
msg + '\n' + Log.getStackTraceString(tr));
}
/**
* Logs a condition that should never happen.
*
* <p>
* Similar to {@link Log#wtf(String, String)}, but will never cause the caller to crash, and
* will always be handled asynchronously. Primarily to be used by the system server.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
*
* @see Log#wtf(String, String)
*/
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
public static int wtf(@Nullable String tag, @NonNull String msg) {
return Log.wtf(Log.LOG_ID_SYSTEM, tag, msg, null, false, true);
}
/**
* Similar to {@link #wtf(String, String)}, but does not output anything to the log.
*/
public static void wtfQuiet(@Nullable String tag, @NonNull String msg) {
Log.wtfQuiet(Log.LOG_ID_SYSTEM, tag, msg, true);
}
/**
* Logs a condition that should never happen, attaching the full call stack to the log.
*
* <p>
* Similar to {@link Log#wtfStack(String, String)}, but will never cause the caller to crash,
* and will always be handled asynchronously. Primarily to be used by the system server.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
*
* @see Log#wtfStack(String, String)
*/
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
public static int wtfStack(@Nullable String tag, @NonNull String msg) {
return Log.wtf(Log.LOG_ID_SYSTEM, tag, msg, null, true, true);
}
/**
* Logs a condition that should never happen, attaching stack trace of the {@code tr} to the
* end of the log statement.
*
* <p>
* Similar to {@link Log#wtf(String, Throwable)}, but will never cause the caller to crash,
* and will always be handled asynchronously. Primarily to be used by the system server.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param tr an exception to log.
*
* @see Log#wtf(String, Throwable)
*/
public static int wtf(@Nullable String tag, @Nullable Throwable tr) {
return Log.wtf(Log.LOG_ID_SYSTEM, tag, tr.getMessage(), tr, false, true);
}
/**
* Logs a condition that should never happen, attaching stack trace of the {@code tr} to the
* end of the log statement.
*
* <p>
* Similar to {@link Log#wtf(String, String, Throwable)}, but will never cause the caller to
* crash, and will always be handled asynchronously. Primarily to be used by the system server.
*
* @param tag identifies the source of a log message. It usually represents system service,
* e.g. {@code PackageManager}.
* @param msg the message to log.
* @param tr an exception to log.
*
* @see Log#wtf(String, String, Throwable)
*/
@UnsupportedAppUsage
public static int wtf(@Nullable String tag, @NonNull String msg, @Nullable Throwable tr) {
return Log.wtf(Log.LOG_ID_SYSTEM, tag, msg, tr, false, true);
}
/** @hide */
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
public static int println(@Log.Level int priority, @Nullable String tag, @NonNull String msg) {
return Log.println_native(Log.LOG_ID_SYSTEM, priority, tag, msg);
}
}
|
