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authorngie <ngie@FreeBSD.org>2016-12-03 02:55:19 +0000
committerngie <ngie@FreeBSD.org>2016-12-03 02:55:19 +0000
commit2191e1f6f481f1ccb95a292874a4676a56e01b6c (patch)
treedf47b4e512fc62f8eb97c24ee2d67c4c5f4c3eac /tests/sys/kqueue/proc.c
parent6a5b5c2afb18d38280c7cf791468a73ce609265a (diff)
downloadFreeBSD-src-2191e1f6f481f1ccb95a292874a4676a56e01b6c.zip
FreeBSD-src-2191e1f6f481f1ccb95a292874a4676a56e01b6c.tar.gz
MFC r304797,r305467,r305468,r305483:
r304797 (by jmmv): Make use of Kyua's work directories. Change the vnode tests to use the current directory when creating temporary files, which we can assume is a volatile work directory, and then make the kqueue_test.sh driver _not_ abandon the directory created by Kyua. This makes the various kqueue tests independent of each other, and ensures the temporary file is cleaned up on failure. Problem spotted by asomers@ when reviewing D4254. r305467: Move tests/sys/kqueue/... to tests/sys/kqueue/libkqueue/... This is being done to clearly distinguish the libkqueue tests from the (soon to be imported) NetBSD tests. r305468: Port contrib/netbsd-tests/kernel/kqueue/... as tests/sys/kqueue/... proc2_test must be skipped because the invariant tested (`ke.fflags & NOTE_TRACKERR`) doesn't pass. r305483: Fix tests/sys/kqueue NetBSD tests on 32-bit platforms by using proper format specifier for pointers when printing them out with printf(3) Pointyhat to: ngie
Diffstat (limited to 'tests/sys/kqueue/proc.c')
-rw-r--r--tests/sys/kqueue/proc.c423
1 files changed, 0 insertions, 423 deletions
diff --git a/tests/sys/kqueue/proc.c b/tests/sys/kqueue/proc.c
deleted file mode 100644
index 79b8d35..0000000
--- a/tests/sys/kqueue/proc.c
+++ /dev/null
@@ -1,423 +0,0 @@
-/*
- * Copyright (c) 2009 Mark Heily <mark@heily.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * $FreeBSD$
- */
-
-#include <sys/stat.h>
-
-#include <err.h>
-
-#include "config.h"
-#include "common.h"
-
-static int sigusr1_caught = 0;
-
-int kqfd;
-
-static void
-sig_handler(int signum)
-{
- sigusr1_caught = 1;
-}
-
-static void
-add_and_delete(void)
-{
- struct kevent kev;
- pid_t pid;
-
- /* Create a child that waits to be killed and then exits */
- pid = fork();
- if (pid == 0) {
- struct stat s;
- if (fstat(kqfd, &s) != -1)
- errx(1, "kqueue inherited across fork! (%s() at %s:%d)",
- __func__, __FILE__, __LINE__);
-
- pause();
- exit(2);
- }
- printf(" -- child created (pid %d)\n", (int) pid);
-
- test_begin("kevent(EVFILT_PROC, EV_ADD)");
-
- test_no_kevents();
- kevent_add(kqfd, &kev, pid, EVFILT_PROC, EV_ADD, 0, 0, NULL);
- test_no_kevents();
-
- success();
-
- test_begin("kevent(EVFILT_PROC, EV_DELETE)");
-
- sleep(1);
- test_no_kevents();
- kevent_add(kqfd, &kev, pid, EVFILT_PROC, EV_DELETE, 0, 0, NULL);
- if (kill(pid, SIGKILL) < 0)
- err(1, "kill");
- sleep(1);
- test_no_kevents();
-
- success();
-
-}
-
-static void
-proc_track(int sleep_time)
-{
- char test_id[64];
- struct kevent kev;
- pid_t pid;
- int pipe_fd[2];
- ssize_t result;
-
- snprintf(test_id, sizeof(test_id),
- "kevent(EVFILT_PROC, NOTE_TRACK); sleep %d", sleep_time);
- test_begin(test_id);
- test_no_kevents();
-
- if (pipe(pipe_fd)) {
- err(1, "pipe (parent) failed! (%s() at %s:%d)",
- __func__, __FILE__, __LINE__);
- }
-
- /* Create a child to track. */
- pid = fork();
- if (pid == 0) { /* Child */
- pid_t grandchild = -1;
-
- /*
- * Give the parent a chance to start tracking us.
- */
- result = read(pipe_fd[1], test_id, 1);
- if (result != 1) {
- err(1, "read from pipe in child failed! (ret %zd) (%s() at %s:%d)",
- result, __func__, __FILE__, __LINE__);
- }
-
- /*
- * Spawn a grandchild that will immediately exit. If the kernel has bug
- * 180385, the parent will see a kevent with both NOTE_CHILD and
- * NOTE_EXIT. If that bug is fixed, it will see two separate kevents
- * for those notes. Note that this triggers the conditions for
- * detecting the bug quite reliably on a 1 CPU system (or if the test
- * process is restricted to a single CPU), but may not trigger it on a
- * multi-CPU system.
- */
- grandchild = fork();
- if (grandchild == 0) { /* Grandchild */
- if (sleep_time) sleep(sleep_time);
- exit(1);
- } else if (grandchild == -1) { /* Error */
- err(1, "fork (grandchild) failed! (%s() at %s:%d)",
- __func__, __FILE__, __LINE__);
- } else { /* Child (Grandchild Parent) */
- printf(" -- grandchild created (pid %d)\n", (int) grandchild);
- }
- if (sleep_time) sleep(sleep_time);
- exit(0);
- } else if (pid == -1) { /* Error */
- err(1, "fork (child) failed! (%s() at %s:%d)",
- __func__, __FILE__, __LINE__);
- }
-
- printf(" -- child created (pid %d)\n", (int) pid);
-
- kevent_add(kqfd, &kev, pid, EVFILT_PROC, EV_ADD | EV_ENABLE,
- NOTE_TRACK | NOTE_EXEC | NOTE_EXIT | NOTE_FORK,
- 0, NULL);
-
- printf(" -- tracking child (pid %d)\n", (int) pid);
-
- /* Now that we're tracking the child, tell it to proceed. */
- result = write(pipe_fd[0], test_id, 1);
- if (result != 1) {
- err(1, "write to pipe in parent failed! (ret %zd) (%s() at %s:%d)",
- result, __func__, __FILE__, __LINE__);
- }
-
- /*
- * Several events should be received:
- * - NOTE_FORK (from child)
- * - NOTE_CHILD (from grandchild)
- * - NOTE_EXIT (from grandchild)
- * - NOTE_EXIT (from child)
- *
- * The NOTE_FORK and NOTE_EXIT from the child could be combined into a
- * single event, but the NOTE_CHILD and NOTE_EXIT from the grandchild must
- * not be combined.
- *
- * The loop continues until no events are received within a 5 second
- * period, at which point it is assumed that no more will be coming. The
- * loop is deliberately designed to attempt to get events even after all
- * the expected ones are received in case some spurious events are
- * generated as well as the expected ones.
- */
- {
- int child_exit = 0;
- int child_fork = 0;
- int gchild_exit = 0;
- int gchild_note = 0;
- pid_t gchild_pid = -1;
- int done = 0;
-
- while (!done)
- {
- int handled = 0;
- struct kevent *kevp;
-
- kevp = kevent_get_timeout(kqfd, 5);
- if (kevp == NULL) {
- done = 1;
- } else {
- printf(" -- Received kevent: %s\n", kevent_to_str(kevp));
-
- if ((kevp->fflags & NOTE_CHILD) && (kevp->fflags & NOTE_EXIT)) {
- errx(1, "NOTE_CHILD and NOTE_EXIT in same kevent: %s", kevent_to_str(kevp));
- }
-
- if (kevp->fflags & NOTE_CHILD) {
- if (kevp->data == pid) {
- if (!gchild_note) {
- ++gchild_note;
- gchild_pid = kevp->ident;
- ++handled;
- } else {
- errx(1, "Spurious NOTE_CHILD: %s", kevent_to_str(kevp));
- }
- }
- }
-
- if (kevp->fflags & NOTE_EXIT) {
- if ((kevp->ident == pid) && (!child_exit)) {
- ++child_exit;
- ++handled;
- } else if ((kevp->ident == gchild_pid) && (!gchild_exit)) {
- ++gchild_exit;
- ++handled;
- } else {
- errx(1, "Spurious NOTE_EXIT: %s", kevent_to_str(kevp));
- }
- }
-
- if (kevp->fflags & NOTE_FORK) {
- if ((kevp->ident == pid) && (!child_fork)) {
- ++child_fork;
- ++handled;
- } else {
- errx(1, "Spurious NOTE_FORK: %s", kevent_to_str(kevp));
- }
- }
-
- if (!handled) {
- errx(1, "Spurious kevent: %s", kevent_to_str(kevp));
- }
-
- free(kevp);
- }
- }
-
- /* Make sure all expected events were received. */
- if (child_exit && child_fork && gchild_exit && gchild_note) {
- printf(" -- Received all expected events.\n");
- } else {
- errx(1, "Did not receive all expected events.");
- }
- }
-
- success();
-}
-
-#ifdef TODO
-static void
-event_trigger(void)
-{
- struct kevent kev;
- pid_t pid;
-
- test_begin("kevent(EVFILT_PROC, wait)");
-
- /* Create a child that waits to be killed and then exits */
- pid = fork();
- if (pid == 0) {
- pause();
- printf(" -- child caught signal, exiting\n");
- exit(2);
- }
- printf(" -- child created (pid %d)\n", (int) pid);
-
- test_no_kevents();
- kevent_add(kqfd, &kev, pid, EVFILT_PROC, EV_ADD, 0, 0, NULL);
-
- /* Cause the child to exit, then retrieve the event */
- printf(" -- killing process %d\n", (int) pid);
- if (kill(pid, SIGUSR1) < 0)
- err(1, "kill");
- kevent_cmp(&kev, kevent_get(kqfd));
- test_no_kevents();
-
- success();
-}
-
-void
-test_kevent_signal_disable(void)
-{
- const char *test_id = "kevent(EVFILT_SIGNAL, EV_DISABLE)";
- struct kevent kev;
-
- test_begin(test_id);
-
- EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, EV_DISABLE, 0, 0, NULL);
- if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
- err(1, "%s", test_id);
-
- /* Block SIGUSR1, then send it to ourselves */
- sigset_t mask;
- sigemptyset(&mask);
- sigaddset(&mask, SIGUSR1);
- if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
- err(1, "sigprocmask");
- if (kill(getpid(), SIGKILL) < 0)
- err(1, "kill");
-
- test_no_kevents();
-
- success();
-}
-
-void
-test_kevent_signal_enable(void)
-{
- const char *test_id = "kevent(EVFILT_SIGNAL, EV_ENABLE)";
- struct kevent kev;
-
- test_begin(test_id);
-
- EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, EV_ENABLE, 0, 0, NULL);
- if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
- err(1, "%s", test_id);
-
- /* Block SIGUSR1, then send it to ourselves */
- sigset_t mask;
- sigemptyset(&mask);
- sigaddset(&mask, SIGUSR1);
- if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
- err(1, "sigprocmask");
- if (kill(getpid(), SIGUSR1) < 0)
- err(1, "kill");
-
- kev.flags = EV_ADD | EV_CLEAR;
-#if LIBKQUEUE
- kev.data = 1; /* WORKAROUND */
-#else
- kev.data = 2; // one extra time from test_kevent_signal_disable()
-#endif
- kevent_cmp(&kev, kevent_get(kqfd));
-
- /* Delete the watch */
- kev.flags = EV_DELETE;
- if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
- err(1, "%s", test_id);
-
- success();
-}
-
-void
-test_kevent_signal_del(void)
-{
- const char *test_id = "kevent(EVFILT_SIGNAL, EV_DELETE)";
- struct kevent kev;
-
- test_begin(test_id);
-
- /* Delete the kevent */
- EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, EV_DELETE, 0, 0, NULL);
- if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
- err(1, "%s", test_id);
-
- /* Block SIGUSR1, then send it to ourselves */
- sigset_t mask;
- sigemptyset(&mask);
- sigaddset(&mask, SIGUSR1);
- if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
- err(1, "sigprocmask");
- if (kill(getpid(), SIGUSR1) < 0)
- err(1, "kill");
-
- test_no_kevents();
- success();
-}
-
-void
-test_kevent_signal_oneshot(void)
-{
- const char *test_id = "kevent(EVFILT_SIGNAL, EV_ONESHOT)";
- struct kevent kev;
-
- test_begin(test_id);
-
- EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, EV_ADD | EV_ONESHOT, 0, 0, NULL);
- if (kevent(kqfd, &kev, 1, NULL, 0, NULL) < 0)
- err(1, "%s", test_id);
-
- /* Block SIGUSR1, then send it to ourselves */
- sigset_t mask;
- sigemptyset(&mask);
- sigaddset(&mask, SIGUSR1);
- if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
- err(1, "sigprocmask");
- if (kill(getpid(), SIGUSR1) < 0)
- err(1, "kill");
-
- kev.flags |= EV_CLEAR;
- kev.data = 1;
- kevent_cmp(&kev, kevent_get(kqfd));
-
- /* Send another one and make sure we get no events */
- if (kill(getpid(), SIGUSR1) < 0)
- err(1, "kill");
- test_no_kevents();
-
- success();
-}
-#endif
-
-void
-test_evfilt_proc()
-{
- kqfd = kqueue();
-
- signal(SIGUSR1, sig_handler);
-
- add_and_delete();
- proc_track(0); /* Run without sleeping before children exit. */
- proc_track(1); /* Sleep a bit in the children before exiting. */
-
-#if TODO
- event_trigger();
-#endif
-
- signal(SIGUSR1, SIG_DFL);
-
-#if TODO
- test_kevent_signal_add();
- test_kevent_signal_del();
- test_kevent_signal_get();
- test_kevent_signal_disable();
- test_kevent_signal_enable();
- test_kevent_signal_oneshot();
-#endif
- close(kqfd);
-}
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