Commit 90c5fd48 authored by Peter Holm's avatar Peter Holm
Browse files

stress2: Added a regression test

parent 5691cbec
#!/bin/sh
# Bug 258310 - kevent() does not see signal with zero timeout
# Test scenario copied from the bug report.
# Fixed by: 98168a6e6c12 - main - kqueue: drain kqueue taskqueue if syscall tickled it
cat > /tmp/kevent16.c <<EOF
#ifdef NDEBUG
#undef NDEBUG
#endif
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/event.h>
#include <assert.h>
#include <errno.h>
#include <signal.h>
#include <stdlib.h>
#include <poll.h>
#include <unistd.h>
int
main(void)
{
long l;
int rv;
sigset_t set;
rv = sigemptyset(&set);
assert(rv == 0);
rv = sigaddset(&set, SIGUSR1);
assert(rv == 0);
rv = sigprocmask(SIG_BLOCK, &set, NULL);
assert(rv == 0);
int skq = kqueue();
assert(skq >= 0);
struct kevent kev;
EV_SET(&kev, SIGUSR1, EVFILT_SIGNAL, EV_ADD, 0, 0, 0);
rv = kevent(skq, &kev, 1, NULL, 0, NULL);
assert(rv == 0);
int kq = kqueue();
assert(kq >= 0);
EV_SET(&kev, skq, EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, 0);
rv = kevent(kq, &kev, 1, NULL, 0, NULL);
assert(rv == 0);
for (l = 0; l < 1000000; l++) {
rv = kill(getpid(), SIGUSR1);
assert(rv == 0);
/* Turn this into `#if 1` to avoid the race. */
#if 0
rv = kevent(kq, NULL, 0, &kev, 1, NULL);
#else
rv = kevent(kq, NULL, 0, &kev, 1, &(struct timespec) { 0, 0 });
#endif
assert(rv == 1);
rv = kevent(kq, NULL, 0, &kev, 1, &(struct timespec) { 0, 0 });
assert(rv == 0);
rv = kevent(skq, NULL, 0, &kev, 1, &(struct timespec) { 0, 0 });
assert(rv == 1);
rv = kevent(skq, NULL, 0, &kev, 1, &(struct timespec) { 0, 0 });
assert(rv == 0);
siginfo_t siginfo;
rv = sigtimedwait(&set, &siginfo, &(struct timespec) { 0, 0 });
assert(rv == SIGUSR1);
rv = sigtimedwait(&set, &siginfo, &(struct timespec) { 0, 0 });
assert(rv < 0);
assert(errno == EAGAIN);
}
}
EOF
cc -o /tmp/kevent16 -Wall -Wextra -O2 /tmp/kevent16.c || exit 1
/tmp/kevent16; s=$?
rm -f /tmp/kevent16.c kevent16 kevent16.core
exit $s
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