ngx_log_debug4    147 src/core/ngx_log.h #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4)          \
ngx_log_debug4    187 src/core/ngx_log.h #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4)          \
ngx_log_debug4    220 src/core/ngx_log.h #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4)