diff --git a/storage/rocksdb/logger.h b/storage/rocksdb/logger.h new file mode 100644 index 0000000000000000000000000000000000000000..eebcdeb80b1d87d5e90b57f38344aaac8eed8624 --- /dev/null +++ b/storage/rocksdb/logger.h @@ -0,0 +1,84 @@ +/* + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#pragma once + +#include +#include + +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 { + 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 + char buffer[1024]; + vsnprintf(buffer, sizeof(buffer), format, ap); + LogPluginErrMsg(mysql_log_level, 0, "%s", buffer); + } + + void Logv(const char *format, va_list ap) override { + 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 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 m_logger; + rocksdb::InfoLogLevel m_mysql_log_level; +}; + +} // namespace myrocks