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// @file log.h
/* Copyright 2009 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#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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