1
2 /**
3 * Copyright (C) 2018-present MongoDB, Inc.
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the Server Side Public License, version 1,
7 * as published by MongoDB, Inc.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * Server Side Public License for more details.
13 *
14 * You should have received a copy of the Server Side Public License
15 * along with this program. If not, see
16 * <http://www.mongodb.com/licensing/server-side-public-license>.
17 *
18 * As a special exception, the copyright holders give permission to link the
19 * code of portions of this program with the OpenSSL library under certain
20 * conditions as described in each individual source file and distribute
21 * linked combinations including the program with the OpenSSL library. You
22 * must comply with the Server Side Public License in all respects for
23 * all of the code used other than as permitted herein. If you modify file(s)
24 * with this exception, you may extend this exception to your version of the
25 * file(s), but you are not obligated to do so. If you do not wish to do so,
26 * delete this exception statement from your version. If you delete this
27 * exception statement from all source files in the program, then also delete
28 * it in the license file.
29 */
30
31 #define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kControl
32
33 #include "mongo/platform/basic.h"
34
35 #include "mongo/util/log.h"
36
37 #include "mongo/logger/console_appender.h"
38 #include "mongo/logger/message_event_utf8_encoder.h"
39 #include "mongo/logger/ramlog.h"
40 #include "mongo/logger/rotatable_file_manager.h"
41 #include "mongo/util/assert_util.h"
42 #include "mongo/util/concurrency/thread_name.h"
43 #include "mongo/util/stacktrace.h"
44 #include "mongo/util/time_support.h"
45
46 using namespace std;
47
48 // TODO: Win32 unicode console writing (in logger/console_appender?).
49 // TODO: Extra log context appending, and re-enable log_user_*.js
50 // TODO: Eliminate cout/cerr.
51
52 namespace mongo {
53
54 static logger::ExtraLogContextFn _appendExtraLogContext;
55
registerExtraLogContextFn(logger::ExtraLogContextFn contextFn)56 Status logger::registerExtraLogContextFn(logger::ExtraLogContextFn contextFn) {
57 if (!contextFn)
58 return Status(ErrorCodes::BadValue, "Cannot register a NULL log context function.");
59 if (_appendExtraLogContext) {
60 return Status(ErrorCodes::AlreadyInitialized,
61 "Cannot call registerExtraLogContextFn multiple times.");
62 }
63 _appendExtraLogContext = contextFn;
64 return Status::OK();
65 }
66
rotateLogs(bool renameFiles)67 bool rotateLogs(bool renameFiles) {
68 using logger::RotatableFileManager;
69 RotatableFileManager* manager = logger::globalRotatableFileManager();
70 log() << "Log rotation initiated";
71 RotatableFileManager::FileNameStatusPairVector result(
72 manager->rotateAll(renameFiles, "." + terseCurrentTime(false)));
73 for (RotatableFileManager::FileNameStatusPairVector::iterator it = result.begin();
74 it != result.end();
75 it++) {
76 warning() << "Rotating log file " << it->first << " failed: " << it->second.toString();
77 }
78 return result.empty();
79 }
80
logContext(const char * errmsg)81 void logContext(const char* errmsg) {
82 if (errmsg) {
83 log() << errmsg << endl;
84 }
85 // NOTE: We disable long-line truncation for the stack trace, because the JSON representation of
86 // the stack trace can sometimes exceed the long line limit.
87 printStackTrace(log().setIsTruncatable(false).stream());
88 }
89
setPlainConsoleLogger()90 void setPlainConsoleLogger() {
91 logger::globalLogManager()->getGlobalDomain()->clearAppenders();
92 logger::globalLogManager()->getGlobalDomain()->attachAppender(
93 logger::MessageLogDomain::AppenderAutoPtr(
94 new logger::ConsoleAppender<logger::MessageEventEphemeral>(
95 new logger::MessageEventUnadornedEncoder)));
96 }
97
98 Tee* const warnings = RamLog::get("warnings"); // Things put here go in serverStatus
99 Tee* const startupWarningsLog = RamLog::get("startupWarnings"); // intentionally leaked
100
101 } // namespace mongo
102