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60 lines
3.1 KiB
C++
60 lines
3.1 KiB
C++
#pragma once
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/// Macros for convenient usage of Poco logger.
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#include <fmt/format.h>
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#include <Poco/Logger.h>
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#include <Poco/Message.h>
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#include <Common/CurrentThread.h>
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namespace
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{
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template <typename... Ts> constexpr size_t numArgs(Ts &&...) { return sizeof...(Ts); }
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template <typename T, typename... Ts> constexpr auto firstArg(T && x, Ts &&...) { return std::forward<T>(x); }
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}
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/// Logs a message to a specified logger with that level.
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/// If more than one argument is provided,
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/// the first argument is interpreted as template with {}-substitutions
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/// and the latter arguments treat as values to substitute.
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/// If only one argument is provided, it is threat as message without substitutions.
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#define LOG_IMPL(logger, priority, PRIORITY, ...) do \
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{ \
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const bool is_clients_log = (DB::CurrentThread::getGroup() != nullptr) && \
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(DB::CurrentThread::getGroup()->client_logs_level >= (priority)); \
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if ((logger)->is((PRIORITY)) || is_clients_log) \
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{ \
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std::string formatted_message = numArgs(__VA_ARGS__) > 1 ? fmt::format(__VA_ARGS__) : firstArg(__VA_ARGS__); \
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if (auto channel = (logger)->getChannel()) \
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{ \
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std::string file_function; \
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file_function += __FILE__; \
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file_function += "; "; \
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file_function += __PRETTY_FUNCTION__; \
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Poco::Message poco_message((logger)->name(), formatted_message, \
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(PRIORITY), file_function.c_str(), __LINE__); \
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channel->log(poco_message); \
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} \
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} \
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} while (false)
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#define LOG_TRACE(logger, ...) LOG_IMPL(logger, DB::LogsLevel::trace, Poco::Message::PRIO_TRACE, __VA_ARGS__)
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#define LOG_DEBUG(logger, ...) LOG_IMPL(logger, DB::LogsLevel::debug, Poco::Message::PRIO_DEBUG, __VA_ARGS__)
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#define LOG_INFO(logger, ...) LOG_IMPL(logger, DB::LogsLevel::information, Poco::Message::PRIO_INFORMATION, __VA_ARGS__)
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#define LOG_WARNING(logger, ...) LOG_IMPL(logger, DB::LogsLevel::warning, Poco::Message::PRIO_WARNING, __VA_ARGS__)
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#define LOG_ERROR(logger, ...) LOG_IMPL(logger, DB::LogsLevel::error, Poco::Message::PRIO_ERROR, __VA_ARGS__)
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#define LOG_FATAL(logger, ...) LOG_IMPL(logger, DB::LogsLevel::error, Poco::Message::PRIO_FATAL, __VA_ARGS__)
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/// Compatibility for external projects.
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#if defined(ARCADIA_BUILD)
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using Poco::Logger;
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using Poco::Message;
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using DB::LogsLevel;
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using DB::CurrentThread;
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#endif
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