ngx_thread_set_tls   97 os/unix/ngx_freebsd_rfork_thread.h ngx_err_t ngx_thread_set_tls(ngx_tls_key_t key, void *value);
ngx_thread_set_tls 1238 os/unix/ngx_process_cycle.c     err = ngx_thread_set_tls(ngx_core_tls_key, tls);