| tty.c (92069) | tty.c (92252) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1990, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 22 unchanged lines hidden (view full) --- 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)tty.c 8.8 (Berkeley) 1/21/94 | 1/*- 2 * Copyright (c) 1982, 1986, 1990, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 22 unchanged lines hidden (view full) --- 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)tty.c 8.8 (Berkeley) 1/21/94 |
| 39 * $FreeBSD: head/sys/kern/tty.c 92069 2002-03-11 07:53:13Z tanimura $ | 39 * $FreeBSD: head/sys/kern/tty.c 92252 2002-03-14 01:32:30Z alfred $ |
| 40 */ 41 42/*- 43 * TODO: 44 * o Fix races for sending the start char in ttyflush(). 45 * o Handle inter-byte timeout for "MIN > 0, TIME > 0" in ttyselect(). 46 * With luck, there will be MIN chars before select() returns(). 47 * o Handle CLOCAL consistently for ptys. Perhaps disallow setting it. --- 2220 unchanged lines hidden (view full) --- 2268/* 2269 * Wake up any readers on a tty. 2270 */ 2271void 2272ttwakeup(tp) 2273 register struct tty *tp; 2274{ 2275 | 40 */ 41 42/*- 43 * TODO: 44 * o Fix races for sending the start char in ttyflush(). 45 * o Handle inter-byte timeout for "MIN > 0, TIME > 0" in ttyselect(). 46 * With luck, there will be MIN chars before select() returns(). 47 * o Handle CLOCAL consistently for ptys. Perhaps disallow setting it. --- 2220 unchanged lines hidden (view full) --- 2268/* 2269 * Wake up any readers on a tty. 2270 */ 2271void 2272ttwakeup(tp) 2273 register struct tty *tp; 2274{ 2275 |
| 2276 if (tp->t_rsel.si_pid != 0) | 2276 if (SEL_WAITING(&tp->t_rsel)) |
| 2277 selwakeup(&tp->t_rsel); 2278 if (ISSET(tp->t_state, TS_ASYNC) && tp->t_sigio != NULL) 2279 pgsigio(tp->t_sigio, SIGIO, (tp->t_session != NULL)); 2280 wakeup(TSA_HUP_OR_INPUT(tp)); 2281 KNOTE(&tp->t_rsel.si_note, 0); 2282} 2283 2284/* 2285 * Wake up any writers on a tty. 2286 */ 2287void 2288ttwwakeup(tp) 2289 register struct tty *tp; 2290{ 2291 | 2277 selwakeup(&tp->t_rsel); 2278 if (ISSET(tp->t_state, TS_ASYNC) && tp->t_sigio != NULL) 2279 pgsigio(tp->t_sigio, SIGIO, (tp->t_session != NULL)); 2280 wakeup(TSA_HUP_OR_INPUT(tp)); 2281 KNOTE(&tp->t_rsel.si_note, 0); 2282} 2283 2284/* 2285 * Wake up any writers on a tty. 2286 */ 2287void 2288ttwwakeup(tp) 2289 register struct tty *tp; 2290{ 2291 |
| 2292 if (tp->t_wsel.si_pid != 0 && tp->t_outq.c_cc <= tp->t_olowat) | 2292 if (SEL_WAITING(&tp->t_wsel) && tp->t_outq.c_cc <= tp->t_olowat) |
| 2293 selwakeup(&tp->t_wsel); 2294 if (ISSET(tp->t_state, TS_ASYNC) && tp->t_sigio != NULL) 2295 pgsigio(tp->t_sigio, SIGIO, (tp->t_session != NULL)); 2296 if (ISSET(tp->t_state, TS_BUSY | TS_SO_OCOMPLETE) == 2297 TS_SO_OCOMPLETE && tp->t_outq.c_cc == 0) { 2298 CLR(tp->t_state, TS_SO_OCOMPLETE); 2299 wakeup(TSA_OCOMPLETE(tp)); 2300 } --- 383 unchanged lines hidden --- | 2293 selwakeup(&tp->t_wsel); 2294 if (ISSET(tp->t_state, TS_ASYNC) && tp->t_sigio != NULL) 2295 pgsigio(tp->t_sigio, SIGIO, (tp->t_session != NULL)); 2296 if (ISSET(tp->t_state, TS_BUSY | TS_SO_OCOMPLETE) == 2297 TS_SO_OCOMPLETE && tp->t_outq.c_cc == 0) { 2298 CLR(tp->t_state, TS_SO_OCOMPLETE); 2299 wakeup(TSA_OCOMPLETE(tp)); 2300 } --- 383 unchanged lines hidden --- |