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#ifndef VL_LOG_H_INCLUDED
#define VL_LOG_H_INCLUDED
#include <stdio.h>
#include <stdarg.h>
#define LOG_TRACE 0u
#define LOG_DEBUG 1u
#define LOG_INFO 2u
#define LOG_WARN 3u
#define LOG_ERROR 4u
/* Log functions MUST leave errno untouched */
void vl_log_setlevel(unsigned level);
void vl_logv(unsigned level, const char *fmt, va_list args);
void vl_log(unsigned level, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
#ifndef LOG_MIN_LEVEL
#define LOG_MIN_LEVEL LOG_TRACE
#endif
#if LOG_TRACE >= LOG_MIN_LEVEL
#define LOG_TRACE_ENABLED
#define vl_trace(...) vl_log(LOG_TRACE, __VA_ARGS__)
#define vl_tracev(...) vl_logv(LOG_TRACE, __VA_ARGS__)
#else
#define vl_trace(...)
#define vl_tracev(...)
#endif
#if LOG_DEBUG >= LOG_MIN_LEVEL
#define LOG_DEBUG_ENABLED
#define vl_debug(...) vl_log(LOG_DEBUG, __VA_ARGS__)
#define vl_debugv(...) vl_logv(LOG_DEBUG, __VA_ARGS__)
#else
#define vl_debug(...)
#define vl_debugv(...)
#endif
#if LOG_INFO >= LOG_MIN_LEVEL
#define LOG_INFO_ENABLED
#define vl_info(...) vl_log(LOG_INFO, __VA_ARGS__)
#define vl_infov(...) vl_logv(LOG_INFO, __VA_ARGS__)
#else
#define vl_info(...)
#define vl_infov(...)
#endif
#define LOG_WARN_ENABLED
#define vl_warn(...) vl_log(LOG_WARN, __VA_ARGS__)
#define vl_warnv(...) vl_logv(LOG_WARN, __VA_ARGS__)
#define LOG_ERROR_ENABLED
#define vl_error(...) vl_log(LOG_ERROR, __VA_ARGS__)
#define vl_errorv(...) vl_logv(LOG_ERROR, __VA_ARGS__)
#endif
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