diff options
Diffstat (limited to 'contrib/netbsd-tests/kernel/kqueue/read/t_file.c')
-rw-r--r-- | contrib/netbsd-tests/kernel/kqueue/read/t_file.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/kernel/kqueue/read/t_file.c b/contrib/netbsd-tests/kernel/kqueue/read/t_file.c new file mode 100644 index 0000000..2335172 --- /dev/null +++ b/contrib/netbsd-tests/kernel/kqueue/read/t_file.c @@ -0,0 +1,139 @@ +/* $NetBSD: t_file.c,v 1.3 2010/11/07 17:51:20 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. + * + * 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_file.c,v 1.3 2010/11/07 17:51:20 jmmv Exp $"); + +#include <sys/param.h> +#include <sys/event.h> +#include <sys/mount.h> +#include <sys/wait.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <inttypes.h> + +#include <atf-c.h> + +#include "../../../h_macros.h" + +#define FILENAME "file" +#define NLINES 5 + +static void +child(void) +{ + int i, n, fd; + + (void)sleep(1); + + for (i = 0; i < NLINES; ++i) { + fd = open(FILENAME, O_WRONLY|O_APPEND, 0644); + if (fd < 0) + err(EXIT_FAILURE, "open()"); + + n = write(fd, "foo\n", 4); + if (n < 0) + err(EXIT_FAILURE, "write()"); + + (void)close(fd); + (void)sleep(1); + } + _exit(0); +} + +ATF_TC(file); +ATF_TC_HEAD(file, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks EVFILT_READ on regular file"); +} +ATF_TC_BODY(file, tc) +{ + char buffer[128]; + struct kevent event[1]; + pid_t pid; + int fd, kq, n, num, status; + + RL(pid = fork()); + if (pid == 0) { + child(); + /* NOTREACHED */ + } + + RL(fd = open(FILENAME, O_RDONLY|O_CREAT, 0644)); + +#if 1 /* XXX: why was this disabled? */ + RL(lseek(fd, 0, SEEK_END)); +#endif + + RL(kq = kqueue()); + + EV_SET(&event[0], fd, EVFILT_READ, EV_ADD|EV_ENABLE, 0, 0, 0); + RL(kevent(kq, event, 1, NULL, 0, NULL)); + + for (num = 0; num < NLINES;) { + RL(n = kevent(kq, NULL, 0, event, 1, NULL)); + num += n; + + (void)printf("kevent num %d flags: %#x, fflags: %#x, data: " + "%" PRId64 "\n", n, event[0].flags, event[0].fflags, + event[0].data); + + if (event[0].data < 0) +#if 1 /* XXXLUKEM */ + RL(lseek(fd, 0, SEEK_END)); +#else + RL(lseek(fd, event[0].data, SEEK_END)); +#endif + + RL(n = read(fd, buffer, 128)); + buffer[n] = '\0'; + (void)printf("file(%d): %s", num, buffer); + } + + (void)waitpid(pid, &status, 0); + + (void)printf("read: successful end\n"); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, file); + + return atf_no_error(); +} |