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// @file log.h
/* Copyright 2009 10gen Inc.
*
* 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.
*/
#pragma once
#include "mongo/base/status.h"
#include "mongo/bson/util/builder.h"
#include "mongo/logger/logger.h"
#include "mongo/logger/logstream_builder.h"
#include "mongo/logger/tee.h"
#include "mongo/util/concurrency/thread_name.h"
namespace mongo {
namespace logger {
typedef void (*ExtraLogContextFn)(BufBuilder& builder);
Status registerExtraLogContextFn(ExtraLogContextFn contextFn);
} // namespace logger
using logger::LogstreamBuilder;
using logger::LabeledLevel;
using logger::Tee;
/**
* Returns a LogstreamBuilder for logging a message with LogSeverity::Severe().
*/
inline LogstreamBuilder severe() {
return LogstreamBuilder(logger::globalLogDomain(),
getThreadName(),
logger::LogSeverity::Severe());
}
/**
* Returns a LogstreamBuilder for logging a message with LogSeverity::Error().
*/
inline LogstreamBuilder error() {
return LogstreamBuilder(logger::globalLogDomain(),
getThreadName(),
logger::LogSeverity::Error());
}
/**
* Returns a LogstreamBuilder for logging a message with LogSeverity::Warning().
*/
inline LogstreamBuilder warning() {
return LogstreamBuilder(logger::globalLogDomain(),
getThreadName(),
logger::LogSeverity::Warning());
}
/**
* Returns a LogstreamBuilder for logging a message with LogSeverity::Log().
*/
inline LogstreamBuilder log() {
return LogstreamBuilder(logger::globalLogDomain(),
getThreadName(),
logger::LogSeverity::Log());
}
/**
* Synonym for log().
*/
inline LogstreamBuilder out() { return log(); }
/**
* For logging which we may not want during unit tests (dbtests) runs. Set tlogLevel to -1 to
* suppress MONGO_TLOG() output in a test program.
*/
extern int tlogLevel;
#define MONGO_LOG(DLEVEL) \
if (!(::mongo::logger::globalLogDomain())->shouldLog(::mongo::LogstreamBuilder::severityCast(DLEVEL))) {} \
else LogstreamBuilder(::mongo::logger::globalLogDomain(), getThreadName(), ::mongo::LogstreamBuilder::severityCast(DLEVEL))
#define LOG MONGO_LOG
#define MONGO_DLOG(DLEVEL) \
if (!(DEBUG_BUILD) && !::mongo::logger::globalLogDomain()->shouldLog(::mongo::LogstreamBuilder::severityCast(DLEVEL))) {} \
else LogstreamBuilder(::mongo::logger::globalLogDomain(), getThreadName(), ::mongo::LogstreamBuilder::severityCast(DLEVEL))
#define MONGO_TLOG(DLEVEL) \
if ((!::mongo::debug && ((DLEVEL) > tlogLevel)) || !::mongo::logger::globalLogDomain()->shouldLog(::mongo::LogstreamBuilder::severityCast(DLEVEL))) {} \
else LogstreamBuilder(::mongo::logger::globalLogDomain(), getThreadName(), ::mongo::LogstreamBuilder::severityCast(DLEVEL))
inline LogstreamBuilder problem() {
return log();
}
/**
* Rotates the log files. Returns true if all logs rotate successfully.
*/
bool rotateLogs();
/** output the error # and error message with prefix.
handy for use as parm in uassert/massert.
*/
string errnoWithPrefix( const char * prefix );
// Guard that alters the indentation level used by log messages on the current thread.
// Used only by mongodump (mongo/tools/dump.cpp). Do not introduce new uses.
struct LogIndentLevel {
LogIndentLevel();
~LogIndentLevel();
};
extern Tee* const warnings; // Things put here go in serverStatus
extern Tee* const startupWarningsLog; // Things put here get reported in MMS
string errnoWithDescription(int errorcode = -1);
/**
* Write the current context (backtrace), along with the optional "msg".
*/
void logContext(const char *msg = NULL);
} // namespace mongo
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