7259ca3104
This gives the vfs layer a chance to provide handling for EVFILT_VNODE, for instance. Change pipe_specops to use the default vop_kqfilter to accommodate fifoops that don't specify the method (i.e. all in-tree). Based on a patch by Jan Kokemüller. PR: 225934 Reviewed by: kib, markj (both pre-KASSERT) Differential Revision: https://reviews.freebsd.org/D32271
325 lines
8.6 KiB
C
325 lines
8.6 KiB
C
/*
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* Copyright (c) 2009 Mark Heily <mark@heily.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $FreeBSD$
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*/
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#include "common.h"
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int vnode_fd;
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static void
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test_kevent_vnode_add(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, EV_ADD)";
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const char *testfile = "./kqueue-test.tmp";
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struct kevent kev;
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test_begin(test_id);
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system("touch ./kqueue-test.tmp");
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vnode_fd = open(testfile, O_RDONLY);
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if (vnode_fd < 0)
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err(1, "open of %s", testfile);
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else
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printf("vnode_fd = %d\n", vnode_fd);
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_ADD,
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NOTE_WRITE | NOTE_ATTRIB | NOTE_RENAME | NOTE_DELETE, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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success();
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}
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static void
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test_kevent_vnode_note_delete(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, NOTE_DELETE)";
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struct kevent kev;
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test_begin(test_id);
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_ADD | EV_ONESHOT, NOTE_DELETE, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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if (unlink("./kqueue-test.tmp") < 0)
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err(1, "unlink");
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kevent_cmp(&kev, kevent_get(kqfd));
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success();
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}
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static void
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test_kevent_vnode_note_delete_fifo(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, NOTE_DELETE, FIFO)";
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const char *fifo_path = "./kqueue-fifo.tmp";
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struct kevent kev;
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int fd;
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pid_t pid;
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test_begin(test_id);
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if (mkfifo(fifo_path, 0600) != 0)
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err(1, "mkfifo");
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pid = fork();
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if (pid == -1)
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err(1, "fork");
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if (pid == 0) {
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char buf[4];
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fd = open(fifo_path, O_RDONLY);
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if (fd == -1)
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_exit(1);
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while (read(fd, buf, sizeof(buf)) != 0) {
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}
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_exit(0);
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}
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sleep(1);
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if (waitpid(pid, NULL, WNOHANG) == pid) {
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unlink(fifo_path);
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err(1, "open");
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}
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fd = open(fifo_path, O_WRONLY);
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if (fd < 0) {
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unlink(fifo_path);
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err(1, "open");
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}
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EV_SET(&kev, fd, EVFILT_VNODE, EV_ADD | EV_ONESHOT, NOTE_DELETE, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0) {
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unlink(fifo_path);
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err(1, "%s", test_id);
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}
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if (unlink(fifo_path) < 0)
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err(1, "unlink");
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kevent_cmp(&kev, kevent_get(kqfd));
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close(fd);
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success();
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}
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static void
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test_kevent_vnode_note_write(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, NOTE_WRITE)";
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struct kevent kev;
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test_begin(test_id);
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_ADD | EV_ONESHOT, NOTE_WRITE, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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if (system("echo hello >> ./kqueue-test.tmp") < 0)
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err(1, "system");
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/* BSD kqueue adds NOTE_EXTEND even though it was not requested */
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/* BSD kqueue removes EV_ENABLE */
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kev.flags &= ~EV_ENABLE; // XXX-FIXME compatibility issue
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kev.fflags |= NOTE_EXTEND; // XXX-FIXME compatibility issue
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kevent_cmp(&kev, kevent_get(kqfd));
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success();
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}
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static void
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test_kevent_vnode_note_attrib(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, NOTE_ATTRIB)";
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struct kevent kev;
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int nfds;
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test_begin(test_id);
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_ADD | EV_ONESHOT, NOTE_ATTRIB, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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if (system("touch ./kqueue-test.tmp") < 0)
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err(1, "system");
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nfds = kevent(kqfd, NULL, 0, &kev, 1, NULL);
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if (nfds < 1)
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err(1, "%s", test_id);
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if (kev.ident != (uintptr_t)vnode_fd ||
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kev.filter != EVFILT_VNODE ||
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kev.fflags != NOTE_ATTRIB)
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err(1, "%s - incorrect event (sig=%u; filt=%d; flags=%d)",
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test_id, (unsigned int)kev.ident, kev.filter, kev.flags);
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success();
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}
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static void
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test_kevent_vnode_note_rename(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, NOTE_RENAME)";
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struct kevent kev;
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int nfds;
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test_begin(test_id);
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_ADD | EV_ONESHOT, NOTE_RENAME, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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if (system("mv ./kqueue-test.tmp ./kqueue-test2.tmp") < 0)
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err(1, "system");
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nfds = kevent(kqfd, NULL, 0, &kev, 1, NULL);
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if (nfds < 1)
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err(1, "%s", test_id);
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if (kev.ident != (uintptr_t)vnode_fd ||
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kev.filter != EVFILT_VNODE ||
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kev.fflags != NOTE_RENAME)
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err(1, "%s - incorrect event (sig=%u; filt=%d; flags=%d)",
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test_id, (unsigned int)kev.ident, kev.filter, kev.flags);
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if (system("mv ./kqueue-test2.tmp ./kqueue-test.tmp") < 0)
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err(1, "system");
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success();
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}
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static void
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test_kevent_vnode_del(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, EV_DELETE)";
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struct kevent kev;
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test_begin(test_id);
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_DELETE, 0, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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success();
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}
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static void
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test_kevent_vnode_disable_and_enable(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, EV_DISABLE and EV_ENABLE)";
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struct kevent kev;
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int nfds;
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test_begin(test_id);
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test_no_kevents();
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/* Add the watch and immediately disable it */
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_ADD | EV_ONESHOT, NOTE_ATTRIB, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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kev.flags = EV_DISABLE;
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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/* Confirm that the watch is disabled */
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if (system("touch ./kqueue-test.tmp") < 0)
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err(1, "system");
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test_no_kevents();
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/* Re-enable and check again */
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kev.flags = EV_ENABLE;
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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if (system("touch ./kqueue-test.tmp") < 0)
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err(1, "system");
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nfds = kevent(kqfd, NULL, 0, &kev, 1, NULL);
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if (nfds < 1)
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err(1, "%s", test_id);
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if (kev.ident != (uintptr_t)vnode_fd ||
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kev.filter != EVFILT_VNODE ||
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kev.fflags != NOTE_ATTRIB)
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err(1, "%s - incorrect event (sig=%u; filt=%d; flags=%d)",
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test_id, (unsigned int)kev.ident, kev.filter, kev.flags);
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success();
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}
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#if HAVE_EV_DISPATCH
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static void
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test_kevent_vnode_dispatch(void)
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{
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const char *test_id = "kevent(EVFILT_VNODE, EV_DISPATCH)";
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struct kevent kev;
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int nfds;
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test_begin(test_id);
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test_no_kevents();
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_ADD | EV_DISPATCH, NOTE_ATTRIB, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "%s", test_id);
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if (system("touch ./kqueue-test.tmp") < 0)
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err(1, "system");
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nfds = kevent(kqfd, NULL, 0, &kev, 1, NULL);
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if (nfds < 1)
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err(1, "%s", test_id);
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if (kev.ident != (uintptr_t)vnode_fd ||
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kev.filter != EVFILT_VNODE ||
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kev.fflags != NOTE_ATTRIB)
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err(1, "%s - incorrect event (sig=%u; filt=%d; flags=%d)",
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test_id, (unsigned int)kev.ident, kev.filter, kev.flags);
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/* Confirm that the watch is disabled automatically */
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puts("-- checking that watch is disabled");
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if (system("touch ./kqueue-test.tmp") < 0)
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err(1, "system");
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test_no_kevents();
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/* Delete the watch */
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EV_SET(&kev, vnode_fd, EVFILT_VNODE, EV_DELETE, NOTE_ATTRIB, 0, NULL);
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if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
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err(1, "remove watch failed: %s", test_id);
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success();
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}
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#endif /* HAVE_EV_DISPATCH */
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void
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test_evfilt_vnode(void)
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{
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kqfd = kqueue();
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test_kevent_vnode_add();
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test_kevent_vnode_del();
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test_kevent_vnode_disable_and_enable();
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#if HAVE_EV_DISPATCH
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test_kevent_vnode_dispatch();
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#endif
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test_kevent_vnode_note_write();
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test_kevent_vnode_note_attrib();
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test_kevent_vnode_note_rename();
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test_kevent_vnode_note_delete();
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test_kevent_vnode_note_delete_fifo();
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close(kqfd);
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}
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