60a396a4f7
tools/regression. It tests a number of aspects of kqueue behavior, although not all currently pass (possibly bugs in the test suite?). Submitted by: Mark Heily <mark at heily.com> Obtained from: svn://mark.heily.com/libkqueue/trunk/test (r114)
242 lines
5.6 KiB
C
242 lines
5.6 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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static int sigusr1_caught = 0;
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int kqfd;
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static void
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sig_handler(int signum)
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{
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sigusr1_caught = 1;
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}
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static void
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add_and_delete(void)
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{
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struct kevent kev;
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pid_t pid;
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/* Create a child that waits to be killed and then exits */
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pid = fork();
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if (pid == 0) {
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pause();
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exit(2);
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}
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printf(" -- child created (pid %d)\n", (int) pid);
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test_begin("kevent(EVFILT_PROC, EV_ADD)");
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test_no_kevents();
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kevent_add(kqfd, &kev, pid, EVFILT_PROC, EV_ADD, 0, 0, NULL);
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test_no_kevents();
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success();
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test_begin("kevent(EVFILT_PROC, EV_DELETE)");
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test_no_kevents();
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kevent_add(kqfd, &kev, pid, EVFILT_PROC, EV_DELETE, 0, 0, NULL);
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if (kill(pid, SIGKILL) < 0)
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err(1, "kill");
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sleep(1);
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test_no_kevents();
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success();
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}
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static void
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event_trigger(void)
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{
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struct kevent kev;
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pid_t pid;
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test_begin("kevent(EVFILT_PROC, wait)");
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/* Create a child that waits to be killed and then exits */
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pid = fork();
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if (pid == 0) {
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pause();
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printf(" -- child caught signal, exiting\n");
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exit(2);
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}
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printf(" -- child created (pid %d)\n", (int) pid);
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test_no_kevents();
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kevent_add(kqfd, &kev, pid, EVFILT_PROC, EV_ADD, 0, 0, NULL);
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/* Cause the child to exit, then retrieve the event */
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printf(" -- killing process %d\n", (int) pid);
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if (kill(pid, SIGUSR1) < 0)
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err(1, "kill");
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kevent_cmp(&kev, kevent_get(kqfd));
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test_no_kevents();
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success();
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}
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#ifdef TODO
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void
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test_kevent_signal_disable(void)
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{
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const char *test_id = "kevent(EVFILT_SIGNAL, EV_DISABLE)";
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struct kevent kev;
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test_begin(test_id);
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EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, EV_DISABLE, 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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/* Block SIGUSR1, then send it to ourselves */
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sigset_t mask;
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sigemptyset(&mask);
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sigaddset(&mask, SIGUSR1);
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if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
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err(1, "sigprocmask");
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if (kill(getpid(), SIGKILL) < 0)
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err(1, "kill");
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test_no_kevents();
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success();
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}
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void
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test_kevent_signal_enable(void)
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{
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const char *test_id = "kevent(EVFILT_SIGNAL, EV_ENABLE)";
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struct kevent kev;
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test_begin(test_id);
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EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, EV_ENABLE, 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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/* Block SIGUSR1, then send it to ourselves */
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sigset_t mask;
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sigemptyset(&mask);
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sigaddset(&mask, SIGUSR1);
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if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
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err(1, "sigprocmask");
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if (kill(getpid(), SIGUSR1) < 0)
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err(1, "kill");
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kev.flags = EV_ADD | EV_CLEAR;
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#if LIBKQUEUE
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kev.data = 1; /* WORKAROUND */
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#else
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kev.data = 2; // one extra time from test_kevent_signal_disable()
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#endif
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kevent_cmp(&kev, kevent_get(kqfd));
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/* Delete the watch */
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kev.flags = EV_DELETE;
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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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void
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test_kevent_signal_del(void)
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{
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const char *test_id = "kevent(EVFILT_SIGNAL, EV_DELETE)";
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struct kevent kev;
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test_begin(test_id);
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/* Delete the kevent */
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EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, 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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/* Block SIGUSR1, then send it to ourselves */
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sigset_t mask;
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sigemptyset(&mask);
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sigaddset(&mask, SIGUSR1);
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if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
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err(1, "sigprocmask");
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if (kill(getpid(), SIGUSR1) < 0)
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err(1, "kill");
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test_no_kevents();
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success();
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}
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void
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test_kevent_signal_oneshot(void)
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{
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const char *test_id = "kevent(EVFILT_SIGNAL, EV_ONESHOT)";
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struct kevent kev;
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test_begin(test_id);
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EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, EV_ADD | EV_ONESHOT, 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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/* Block SIGUSR1, then send it to ourselves */
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sigset_t mask;
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sigemptyset(&mask);
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sigaddset(&mask, SIGUSR1);
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if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1)
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err(1, "sigprocmask");
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if (kill(getpid(), SIGUSR1) < 0)
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err(1, "kill");
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kev.flags |= EV_CLEAR;
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kev.data = 1;
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kevent_cmp(&kev, kevent_get(kqfd));
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/* Send another one and make sure we get no events */
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if (kill(getpid(), SIGUSR1) < 0)
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err(1, "kill");
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test_no_kevents();
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success();
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}
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#endif
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void
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test_evfilt_proc()
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{
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kqfd = kqueue();
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signal(SIGUSR1, sig_handler);
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add_and_delete();
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event_trigger();
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signal(SIGUSR1, SIG_DFL);
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#if TODO
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test_kevent_signal_add();
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test_kevent_signal_del();
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test_kevent_signal_get();
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test_kevent_signal_disable();
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test_kevent_signal_enable();
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test_kevent_signal_oneshot();
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#endif
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close(kqfd);
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}
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