NGX_ENOTCONN     1067 src/core/ngx_connection.c         if (err == NGX_ECONNRESET || err == NGX_ENOTCONN) {
NGX_ENOTCONN     1249 src/core/ngx_connection.c         || err == NGX_ENOTCONN
NGX_ENOTCONN     1878 src/event/ngx_event_openssl.c             || err == NGX_ENOTCONN