ngx_socket        311 core/ngx_connection.c             s = ngx_socket(ls[i].sockaddr->sa_family, ls[i].type, 0);
ngx_socket       2111 core/ngx_resolver.c     s = ngx_socket(AF_INET, SOCK_DGRAM, 0);
ngx_socket         29 event/ngx_event_connect.c     s = ngx_socket(pc->sockaddr->sa_family, SOCK_STREAM, 0);