140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/* $NetBSD: t_file.c,v 1.3 2010/11/07 17:51:20 jmmv Exp $ */
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/*-
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* Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__COPYRIGHT("@(#) Copyright (c) 2008\
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The NetBSD Foundation, inc. All rights reserved.");
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__RCSID("$NetBSD: t_file.c,v 1.3 2010/11/07 17:51:20 jmmv Exp $");
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#include <sys/param.h>
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#include <sys/event.h>
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#include <sys/mount.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <inttypes.h>
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#include <atf-c.h>
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#include "../../../h_macros.h"
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#define FILENAME "file"
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#define NLINES 5
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static void
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child(void)
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{
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int i, n, fd;
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(void)sleep(1);
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for (i = 0; i < NLINES; ++i) {
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fd = open(FILENAME, O_WRONLY|O_APPEND, 0644);
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if (fd < 0)
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err(EXIT_FAILURE, "open()");
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n = write(fd, "foo\n", 4);
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if (n < 0)
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err(EXIT_FAILURE, "write()");
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(void)close(fd);
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(void)sleep(1);
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}
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_exit(0);
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}
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ATF_TC(file);
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ATF_TC_HEAD(file, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Checks EVFILT_READ on regular file");
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}
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ATF_TC_BODY(file, tc)
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{
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char buffer[128];
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struct kevent event[1];
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pid_t pid;
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int fd, kq, n, num, status;
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RL(pid = fork());
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if (pid == 0) {
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child();
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/* NOTREACHED */
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}
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RL(fd = open(FILENAME, O_RDONLY|O_CREAT, 0644));
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#if 1 /* XXX: why was this disabled? */
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RL(lseek(fd, 0, SEEK_END));
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#endif
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RL(kq = kqueue());
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EV_SET(&event[0], fd, EVFILT_READ, EV_ADD|EV_ENABLE, 0, 0, 0);
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RL(kevent(kq, event, 1, NULL, 0, NULL));
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for (num = 0; num < NLINES;) {
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RL(n = kevent(kq, NULL, 0, event, 1, NULL));
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num += n;
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(void)printf("kevent num %d flags: %#x, fflags: %#x, data: "
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"%" PRId64 "\n", n, event[0].flags, event[0].fflags,
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event[0].data);
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if (event[0].data < 0)
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#if 1 /* XXXLUKEM */
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RL(lseek(fd, 0, SEEK_END));
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#else
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RL(lseek(fd, event[0].data, SEEK_END));
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#endif
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RL(n = read(fd, buffer, 128));
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buffer[n] = '\0';
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(void)printf("file(%d): %s", num, buffer);
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}
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(void)waitpid(pid, &status, 0);
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(void)printf("read: successful end\n");
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, file);
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return atf_no_error();
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}
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