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/*
Copyright (c) 2015, Facebook, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA */
#pragma once
#include <log.h>
#include <sstream>
#include <string>
namespace myrocks {
class Rdb_logger : public rocksdb::Logger {
public:
explicit Rdb_logger(const rocksdb::InfoLogLevel log_level =
rocksdb::InfoLogLevel::ERROR_LEVEL)
: m_mysql_log_level(log_level) {}
void Logv(const rocksdb::InfoLogLevel log_level, const char *format,
va_list ap) override {
DBUG_ASSERT(format != nullptr);
enum loglevel mysql_log_level;
if (m_logger) {
m_logger->Logv(log_level, format, ap);
}
if (log_level < m_mysql_log_level) {
return;
}
if (log_level >= rocksdb::InfoLogLevel::ERROR_LEVEL) {
mysql_log_level = ERROR_LEVEL;
} else if (log_level >= rocksdb::InfoLogLevel::WARN_LEVEL) {
mysql_log_level = WARNING_LEVEL;
} else {
mysql_log_level = INFORMATION_LEVEL;
}
// log to MySQL
std::string f("LibRocksDB:");
f.append(format);
error_log_print(mysql_log_level, f.c_str(), ap);
}
void Logv(const char *format, va_list ap) override {
DBUG_ASSERT(format != nullptr);
// If no level is specified, it is by default at information level
Logv(rocksdb::InfoLogLevel::INFO_LEVEL, format, ap);
}
void SetRocksDBLogger(const std::shared_ptr<rocksdb::Logger> logger) {
m_logger = logger;
}
void SetInfoLogLevel(const rocksdb::InfoLogLevel log_level) override {
// The InfoLogLevel for the logger is used by rocksdb to filter
// messages, so it needs to be the lower of the two loggers
rocksdb::InfoLogLevel base_level = log_level;
if (m_logger && m_logger->GetInfoLogLevel() < base_level) {
base_level = m_logger->GetInfoLogLevel();
}
rocksdb::Logger::SetInfoLogLevel(base_level);
m_mysql_log_level = log_level;
}
private:
std::shared_ptr<rocksdb::Logger> m_logger;
rocksdb::InfoLogLevel m_mysql_log_level;
};
} // namespace myrocks
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