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arangodb/lib/Basics/Logger.cpp

109 lines
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C++

////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2013 triAGENS GmbH, Cologne, Germany
///
/// 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Achim Brandt
/// @author Dr. Frank Celler
////////////////////////////////////////////////////////////////////////////////
#include "Logger.h"
#include <iomanip>
using namespace arangodb;
namespace {
std::atomic_int_fast16_t NEXT_TOPIC_ID(0);
}
std::atomic<LogLevel> Logger::_level(LogLevel::INFO);
LogTopic::LogTopic(std::string const& name)
: LogTopic(name, LogLevel::DEFAULT) {}
LogTopic::LogTopic(std::string const& name, LogLevel level)
: _topicId(NEXT_TOPIC_ID.fetch_add(1, std::memory_order_seq_cst)),
_level(level) {
_topics.set(_topicId);
}
LogTopic LogTopic::operator|(LogTopic const& that) {
LogTopic result = *this;
if (result._level < that._level) {
result._topicId = MAX_LOG_TOPICS;
result._topics |= that._topics;
if (result._level < that._level) {
result._level.store(that._level, std::memory_order_relaxed);
}
}
return result;
}
LogTopic Logger::COLLECTOR("collector");
LogTopic Logger::COMPACTOR("compactor");
LogTopic Logger::MMAP("mmap");
LogTopic Logger::PERFORMANCE("performance");
LogTopic Logger::QUERIES("queries");
LogTopic Logger::REQUESTS("requests");
void Logger::setLevel(LogLevel level) {
_level = level;
}
LogLevel Logger::logLevel() {
return _level.load(std::memory_order_relaxed);
}
char const* Logger::translateLogLevel(LogLevel level) {
switch (level) {
case LogLevel::DEFAULT: return "default";
case LogLevel::FATAL: return "fatal";
case LogLevel::ERR: return "error";
case LogLevel::WARN: return "warning";
case LogLevel::INFO: return "info";
case LogLevel::DEBUG: return "debug";
case LogLevel::TRACE: return "trace";
}
return "unknown";
}
std::ostream& operator<<(std::ostream& stream, LogLevel level) {
stream << Logger::translateLogLevel(level);
return stream;
}
LoggerStream& LoggerStream::operator<<(Logger::RANGE range) {
std::ostringstream tmp;
tmp << range.baseAddress << " - "
<< static_cast<void const*>(static_cast<char const*>(range.baseAddress) + range.size)
<< " (" << range.size << " bytes)";
_out << tmp.str();
return *this;
}
LoggerStream& LoggerStream::operator<<(Logger::DURATION duration) {
std::ostringstream tmp;
tmp << std::setprecision(duration._precision) << std::fixed << duration._duration;
_out << tmp.str();
return *this;
}