open62541/src/util/ua_log.h

#ifndef UA_LOG_H_
#define UA_LOG_H_

/**
   @defgroup logging Logging

   @brief Logging functionality is externally provided to the open62541 libary.
   The server contains a logger-struct with function callbacks
 */

typedef enum UA_LoggerCategory {
    UA_LOGGINGCATEGORY_CONNECTION,
    UA_LOGGINGCATEGORY_SESSION,
    UA_LOGGINGCATEGORY_SUBSCRIPTION,
    UA_LOGGINGCATEGORY_SERVER
} UA_LoggerCategory;

typedef struct UA_Logger {
    void (*log_trace)(UA_LoggerCategory category, const char *msg, ...);
    void (*log_debug)(UA_LoggerCategory category, const char *msg, ...);
    void (*log_info)(UA_LoggerCategory category, const char *msg, ...);
    void (*log_warning)(UA_LoggerCategory category, const char *msg, ...);
    void (*log_error)(UA_LoggerCategory category, const char *msg, ...);
    void (*log_fatal)(UA_LoggerCategory category, const char *msg, ...);
} UA_Logger;

#if UA_LOGLEVEL <= 100
#define UA_LOG_TRACE(CATEGORY, MSG, ...) do { logger.log_trace(CATEGORY, MSG, __VA_ARGS__); } while(0)
#else
#define UA_LOG_TRACE(CATEGORY, MSG, ...) do {} while(0)
#endif

#if UA_LOGLEVEL <= 200
#define UA_LOG_DEBUG(CATEGORY, MSG, ...) do { logger.log_debug(CATEGORY, MSG, __VA_ARGS__); } while(0)
#else
#define UA_LOG_DEBUG(CATEGORY, MSG, ...) do {} while(0)
#endif

#if UA_LOGLEVEL <= 300
#define UA_LOG_INFO(CATEGORY, MSG, ...) do { logger.log_info(CATEGORY, MSG, __VA_ARGS__); } while(0)
#else
#define UA_LOG_INFO(CATEGORY, MSG, ...) do {} while(0)
#endif

#if UA_LOGLEVEL <= 400
#define UA_LOG_WARNING(CATEGORY, MSG, ...) do { logger.log_warning(CATEGORY, MSG, __VA_ARGS__); } while(0)
#else
#define UA_LOG_WARNING(CATEGORY, MSG, ...) do {} while(0)
#endif

#if UA_LOGLEVEL <= 500
#define UA_LOG_ERROR(CATEGORY, MSG, ...) do { logger.log_error(CATEGORY, MSG, __VA_ARGS__); } while(0)
#else
#define UA_LOG_ERROR(CATEGORY, MSG, ...) do {} while(0)
#endif

#if UA_LOGLEVEL <= 600
#define UA_LOG_FATAL(CATEGORY, MSG, ...) do { logger.log_fatal(CATEGORY, MSG, __VA_ARGS__); } while(0)
#else
#define UA_LOG_FATAL(CATEGORY, MSG, ...) do {} while(0)
#endif

#endif /* UA_LOG_H_ */