64 lines
2.8 KiB
C
64 lines
2.8 KiB
C
#ifndef LOG_H
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#define LOG_H
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#define LOG_LEVEL_DEBUG 10
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#define LOG_LEVEL_INFO 20
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#define LOG_LEVEL_WARN 30
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#define LOG_LEVEL_ERROR 40
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#ifndef LOG_LEVEL
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#define LOG_LEVEL LOG_LEVEL_INFO
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#endif
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#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
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#if LOG_LEVEL > LOG_LEVEL_DEBUG
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#define NO_DEBUG 1
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#endif
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#ifdef NO_DEBUG
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/* compile with all debug messages removed */
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#define log_debug(M, ...) do { if (0) fprintf(stderr, "\33[34mDEBUG\33[39m " M " \33[90m at %s (%s:%d) \33[39m\n", ##__VA_ARGS__, __func__, __FILE__, __LINE__); } while (0)
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#else
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#ifdef LOG_NO_COLORS
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#define log_debug(M, ...) fprintf(stderr, "DEBUG " M " at %s (%s:%d) \n", ##__VA_ARGS__, __func__, __FILE__, __LINE__)
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#else
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#define log_debug(M, ...) fprintf(stderr, "\33[34mDEBUG\33[39m " M " \33[90m at %s (%s:%d) \33[39m\n", ##__VA_ARGS__, __func__, __FILE__, __LINE__)
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#endif /* NOCOLORS */
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#endif /* NDEBUG */
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/* safe readable version of errno */
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#define clean_errno() (errno == 0 ? "None" : strerror(errno))
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#ifdef LOG_NO_COLORS
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#define log_error(M, ...) fprintf(stderr, "ERR " M " at %s (%s:%d) errno:%s\n", ##__VA_ARGS__, __func__, __FILE__, __LINE__, clean_errno())
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#define log_warn(M, ...) fprintf(stderr, "WARN " M " at %s (%s:%d) errno:%s\n", ##__VA_ARGS__, __func__, __FILE__, __LINE__, clean_errno())
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#define log_info(M, ...) fprintf(stderr, "INFO " M " at %s (%s:%d)\n", ##__VA_ARGS__, __func__, __FILENAME__, __LINE__)
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#else
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#define log_error(M, ...) fprintf(stderr, "\33[31mERR\33[39m " M " \33[90m at %s (%s:%d) \33[94merrno: %s\33[39m\n", ##__VA_ARGS__, __func__, __FILE__, __LINE__, clean_errno())
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#define log_warn(M, ...) fprintf(stderr, "\33[91mWARN\33[39m " M " \33[90m at %s (%s:%d) \33[94merrno: %s\33[39m\n", ##__VA_ARGS__, __func__, __FILE__, __LINE__, clean_errno())
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#define log_info(M, ...) fprintf(stderr, "\33[32mINFO\33[39m " M " \33[90m at %s (%s:%d) \33[39m\n", ##__VA_ARGS__, __func__, __FILENAME__, __LINE__)
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#endif /* NOCOLORS */
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#if LOG_LEVEL > LOG_LEVEL_INFO
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#undef log_info
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#define log_info(M, ...) do { if (0) fprintf(stderr, "\33[31mERR\33[39m " M " \33[90m at %s (%s:%d) \33[94merrno: %s\33[39m\n", ##__VA_ARGS__, __func__, __FILE__, __LINE__, clean_errno()); } while(0)
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#endif
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#if LOG_LEVEL > LOG_LEVEL_WARN
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#undef log_warn
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#define log_warn(M, ...) do { if (0) fprintf(stderr, "\33[91mWARN\33[39m " M " \33[90m at %s (%s:%d) \33[94merrno: %s\33[39m\n", ##__VA_ARGS__, __func__, __FILE__, __LINE__, clean_errno()); } while (0)
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#endif
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#if LOG_LEVEL > LOG_LEVEL_ERROR
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#undef log_error
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#define log_error(M, ...) do { if (0) fprintf(stderr, "\33[32mINFO\33[39m " M " \33[90m at %s (%s:%d) \33[39m\n", ##__VA_ARGS__, __func__, __FILENAME__, __LINE__); } while (0)
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#endif
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#endif
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