ngx_log_tid        18 os/unix/ngx_freebsd_rfork_thread.h #define ngx_log_tid    0
ngx_log_tid        29 os/unix/ngx_thread.h #define ngx_log_tid                  (int) ngx_thread_self()
ngx_log_tid       113 os/unix/ngx_thread.h #define ngx_log_tid           0