log.h

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/*
 * Copyright (c) 2015, Xilinx Inc. and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#ifndef __METAL_METAL_LOG__H__
#define __METAL_METAL_LOG__H__
 
#ifdef __cplusplus
extern "C" {
#endif
 
enum metal_log_level {
        METAL_LOG_EMERGENCY,    
        METAL_LOG_ALERT,        
        METAL_LOG_CRITICAL,     
        METAL_LOG_ERROR,        
        METAL_LOG_WARNING,      
        METAL_LOG_NOTICE,       
        METAL_LOG_INFO,         
        METAL_LOG_DEBUG,        
};
 
typedef void (*metal_log_handler)(enum metal_log_level level,
                                  const char *format, ...);
 
void metal_set_log_handler(metal_log_handler handler);
 
metal_log_handler metal_get_log_handler(void);
 
void metal_set_log_level(enum metal_log_level level);
 
enum metal_log_level metal_get_log_level(void);
 
void metal_default_log_handler(enum metal_log_level level,
                               const char *format, ...);
 
#if defined(ML_FUNC_LINE)
#define metal_fmt(fmt) "%s:%u " fmt, __func__, __LINE__
#else   /* ML_FUNC_LINE */
#define metal_fmt(fmt) fmt
#endif  /* ML_FUNC_LINE */
 
#define metal_log(level, fmt, ...) ({                              \
        if (_metal.common.log_handler && level <= _metal.common.log_level) \
                _metal.common.log_handler(level, metal_fmt(fmt), ## __VA_ARGS__);  \
})
 
#define metal_err(fmt, args...) metal_log(METAL_LOG_ERROR, fmt, ##args)
#define metal_warn(fmt, args...) metal_log(METAL_LOG_WARNING, fmt, ##args)
#define metal_info(fmt, args...) metal_log(METAL_LOG_INFO, fmt, ##args)
#define metal_dbg(fmt, args...) metal_log(METAL_LOG_DEBUG, fmt, ##args)
 
#ifdef __cplusplus
}
#endif
 
#endif /* __METAL_METAL_LOG__H__ */