ngx_log            50 core/ngx_log.c static ngx_log_t        ngx_log;
ngx_log           270 core/ngx_log.c     ngx_log.file = &ngx_log_file;
ngx_log           271 core/ngx_log.c     ngx_log.log_level = NGX_LOG_NOTICE;
ngx_log           284 core/ngx_log.c         return &ngx_log;
ngx_log           346 core/ngx_log.c     return &ngx_log;