// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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#ifndef OPENCV_LOGGER_HPP
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#define OPENCV_LOGGER_HPP
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#include <iostream>
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#include <sstream>
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#include <limits.h> // INT_MAX
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#include "logger.defines.hpp"
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//! @addtogroup core_logging
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// This section describes OpenCV logging utilities.
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//
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//! @{
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namespace cv {
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namespace utils {
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namespace logging {
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//! Supported logging levels and their semantic
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enum LogLevel {
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LOG_LEVEL_SILENT = 0, //!< for using in setLogVevel() call
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LOG_LEVEL_FATAL = 1, //!< Fatal (critical) error (unrecoverable internal error)
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LOG_LEVEL_ERROR = 2, //!< Error message
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LOG_LEVEL_WARNING = 3, //!< Warning message
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LOG_LEVEL_INFO = 4, //!< Info message
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LOG_LEVEL_DEBUG = 5, //!< Debug message. Disabled in the "Release" build.
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LOG_LEVEL_VERBOSE = 6, //!< Verbose (trace) messages. Requires verbosity level. Disabled in the "Release" build.
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#ifndef CV_DOXYGEN
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ENUM_LOG_LEVEL_FORCE_INT = INT_MAX
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#endif
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};
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/** Set global logging level
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@return previous logging level
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*/
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CV_EXPORTS LogLevel setLogLevel(LogLevel logLevel);
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/** Get global logging level */
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CV_EXPORTS LogLevel getLogLevel();
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namespace internal {
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/** Write log message */
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CV_EXPORTS void writeLogMessage(LogLevel logLevel, const char* message);
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} // namespace
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/**
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* \def CV_LOG_STRIP_LEVEL
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*
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* Define CV_LOG_STRIP_LEVEL=CV_LOG_LEVEL_[DEBUG|INFO|WARN|ERROR|FATAL|DISABLED] to compile out anything at that and before that logging level
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*/
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#ifndef CV_LOG_STRIP_LEVEL
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# if defined NDEBUG
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# define CV_LOG_STRIP_LEVEL CV_LOG_LEVEL_DEBUG
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# else
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# define CV_LOG_STRIP_LEVEL CV_LOG_LEVEL_VERBOSE
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# endif
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#endif
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#define CV_LOG_FATAL(tag, ...) for(;;) { if (cv::utils::logging::getLogLevel() < cv::utils::logging::LOG_LEVEL_FATAL) break; std::stringstream ss; ss << __VA_ARGS__; cv::utils::logging::internal::writeLogMessage(cv::utils::logging::LOG_LEVEL_FATAL, ss.str().c_str()); break; }
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#define CV_LOG_ERROR(tag, ...) for(;;) { if (cv::utils::logging::getLogLevel() < cv::utils::logging::LOG_LEVEL_ERROR) break; std::stringstream ss; ss << __VA_ARGS__; cv::utils::logging::internal::writeLogMessage(cv::utils::logging::LOG_LEVEL_ERROR, ss.str().c_str()); break; }
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#define CV_LOG_WARNING(tag, ...) for(;;) { if (cv::utils::logging::getLogLevel() < cv::utils::logging::LOG_LEVEL_WARNING) break; std::stringstream ss; ss << __VA_ARGS__; cv::utils::logging::internal::writeLogMessage(cv::utils::logging::LOG_LEVEL_WARNING, ss.str().c_str()); break; }
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#if CV_LOG_STRIP_LEVEL <= CV_LOG_LEVEL_INFO
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#define CV_LOG_INFO(tag, ...)
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#else
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#define CV_LOG_INFO(tag, ...) for(;;) { if (cv::utils::logging::getLogLevel() < cv::utils::logging::LOG_LEVEL_INFO) break; std::stringstream ss; ss << __VA_ARGS__; cv::utils::logging::internal::writeLogMessage(cv::utils::logging::LOG_LEVEL_INFO, ss.str().c_str()); break; }
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#endif
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#if CV_LOG_STRIP_LEVEL <= CV_LOG_LEVEL_DEBUG
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#define CV_LOG_DEBUG(tag, ...)
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#else
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#define CV_LOG_DEBUG(tag, ...) for(;;) { if (cv::utils::logging::getLogLevel() < cv::utils::logging::LOG_LEVEL_DEBUG) break; std::stringstream ss; ss << __VA_ARGS__; cv::utils::logging::internal::writeLogMessage(cv::utils::logging::LOG_LEVEL_DEBUG, ss.str().c_str()); break; }
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#endif
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#if CV_LOG_STRIP_LEVEL <= CV_LOG_LEVEL_VERBOSE
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#define CV_LOG_VERBOSE(tag, v, ...)
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#else
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#define CV_LOG_VERBOSE(tag, v, ...) for(;;) { if (cv::utils::logging::getLogLevel() < cv::utils::logging::LOG_LEVEL_VERBOSE) break; std::stringstream ss; ss << "[VERB" << v << ":" << cv::utils::getThreadID() << "] " << __VA_ARGS__; cv::utils::logging::internal::writeLogMessage(cv::utils::logging::LOG_LEVEL_VERBOSE, ss.str().c_str()); break; }
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#endif
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}}} // namespace
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//! @}
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#endif // OPENCV_LOGGER_HPP
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