diff options
Diffstat (limited to 'kernel/kqueue/write/t_ttypty.c')
| -rw-r--r-- | kernel/kqueue/write/t_ttypty.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/kernel/kqueue/write/t_ttypty.c b/kernel/kqueue/write/t_ttypty.c new file mode 100644 index 000000000000..6983910f9573 --- /dev/null +++ b/kernel/kqueue/write/t_ttypty.c @@ -0,0 +1,130 @@ +/* $NetBSD: t_ttypty.c,v 1.1 2009/02/20 21:39:58 jmmv Exp $ */ + +/*- + * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Luke Mewburn and Jaromir Dolecek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__COPYRIGHT("@(#) Copyright (c) 2008\ + The NetBSD Foundation, inc. All rights reserved."); +__RCSID("$NetBSD: t_ttypty.c,v 1.1 2009/02/20 21:39:58 jmmv Exp $"); + +#include <sys/event.h> +#include <sys/wait.h> + +#include <fcntl.h> +#include <poll.h> +#include <stdio.h> +#include <stdlib.h> +#include <termios.h> +#include <unistd.h> +#include <util.h> + +#include <atf-c.h> + +#include "../../../h_macros.h" + +static void +h_check(bool check_master) +{ + char slavetty[1024]; + char buffer[128]; + struct kevent event[1]; + struct pollfd pfd; + pid_t child; + int status, kq, n; + int amaster, aslave, acurrent; + + RL(openpty(&amaster, &aslave, slavetty, NULL, NULL)); + (void)printf("tty: openpty master %d slave %d tty '%s'\n", + amaster, aslave, slavetty); + acurrent = check_master ? amaster : aslave; + + RL(child = fork()); + if (child == 0) { + (void)sleep(1); + + n = read(check_master ? aslave : amaster, buffer, 128); + (void)printf("tty: child read '%.*s'\n", n, buffer); + + _exit(0); + } + + pfd.fd = acurrent; + pfd.events = POLLOUT; + (void)printf("tty: polling ...\n"); + RL(poll(&pfd, 1, INFTIM)); + (void)printf("tty: returned from poll - %d\n", pfd.revents); + + RL(kq = kqueue()); + + EV_SET(&event[0], acurrent, EVFILT_WRITE, EV_ADD|EV_ENABLE, 0, 0, 0); + RL(kevent(kq, event, 1, NULL, 0, NULL)); + + RL(n = kevent(kq, NULL, 0, event, 1, NULL)); + + (void)printf("kevent num %d filt %d flags: %#x, fflags: %#x, data: " + "%" PRId64 "\n", n, event[0].filter, event[0].flags, event[0].fflags, + event[0].data); + + ATF_REQUIRE_EQ(event[0].filter, EVFILT_WRITE); + + RL(n = write(acurrent, "f00\n", 4)); + (void)printf("tty: wrote 'f00\\n' (wrote %d characters)\n", n); + + (void)waitpid(child, &status, 0); + (void)printf("tty: successful end\n"); +} + +ATF_TC(master); +ATF_TC_HEAD(master, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks EVFILT_WRITE for master tty"); +} +ATF_TC_BODY(master, tc) +{ + h_check(true); +} + +ATF_TC(slave); +ATF_TC_HEAD(slave, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks EVFILT_WRITE for slave tty"); +} +ATF_TC_BODY(slave, tc) +{ + h_check(false); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, master); + ATF_TP_ADD_TC(tp, slave); + + return atf_no_error(); +} |