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2b34e84335
This change implements NOTE_ABSTIME flag for EVFILT_TIMER, which specifies that the data field contains absolute time to fire the event. To make this useful, data member of the struct kevent must be extended to 64bit. Using the opportunity, I also added ext members. This changes struct kevent almost to Apple struct kevent64, except I did not changed type of ident and udata, the later would cause serious API incompatibilities. The type of ident was kept uintptr_t since EVFILT_AIO returns a pointer in this field, and e.g. CHERI is sensitive to the type (discussed with brooks, jhb). Unlike Apple kevent64, symbol versioning allows us to claim ABI compatibility and still name the new syscall kevent(2). Compat shims are provided for both host native and compat32. Requested by: bapt Reviewed by: bapt, brooks, ngie (previous version) Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D11025
338 lines
8.1 KiB
C
338 lines
8.1 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 <sys/types.h>
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#include "config.h"
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#include "common.h"
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int testnum = 1;
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char *cur_test_id = NULL;
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int kqfd;
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extern void test_evfilt_read();
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extern void test_evfilt_signal();
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extern void test_evfilt_vnode();
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extern void test_evfilt_timer();
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extern void test_evfilt_proc();
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#if HAVE_EVFILT_USER
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extern void test_evfilt_user();
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#endif
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/* Checks if any events are pending, which is an error. */
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void
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test_no_kevents(void)
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{
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int nfds;
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struct timespec timeo;
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struct kevent kev;
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puts("confirming that there are no events pending");
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memset(&timeo, 0, sizeof(timeo));
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nfds = kevent(kqfd, NULL, 0, &kev, 1, &timeo);
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if (nfds != 0) {
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puts("\nUnexpected event:");
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puts(kevent_to_str(&kev));
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errx(1, "%d event(s) pending, but none expected:", nfds);
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}
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}
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/* Retrieve a single kevent */
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struct kevent *
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kevent_get(int kqfd)
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{
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int nfds;
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struct kevent *kev;
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if ((kev = calloc(1, sizeof(*kev))) == NULL)
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err(1, "out of memory");
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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, "kevent(2)");
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return (kev);
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}
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/* Retrieve a single kevent, specifying a maximum time to wait for it. */
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struct kevent *
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kevent_get_timeout(int kqfd, int seconds)
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{
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int nfds;
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struct kevent *kev;
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struct timespec timeout = {seconds, 0};
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if ((kev = calloc(1, sizeof(*kev))) == NULL)
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err(1, "out of memory");
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nfds = kevent(kqfd, NULL, 0, kev, 1, &timeout);
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if (nfds < 0) {
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err(1, "kevent(2)");
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} else if (nfds == 0) {
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free(kev);
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kev = NULL;
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}
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return (kev);
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}
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char *
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kevent_fflags_dump(struct kevent *kev)
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{
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char *buf;
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#define KEVFFL_DUMP(attrib) \
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if (kev->fflags & attrib) \
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strncat(buf, #attrib" ", 64);
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if ((buf = calloc(1, 1024)) == NULL)
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abort();
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/* Not every filter has meaningful fflags */
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if (kev->filter == EVFILT_PROC) {
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snprintf(buf, 1024, "fflags = %x (", kev->fflags);
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KEVFFL_DUMP(NOTE_EXIT);
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KEVFFL_DUMP(NOTE_FORK);
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KEVFFL_DUMP(NOTE_EXEC);
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KEVFFL_DUMP(NOTE_CHILD);
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KEVFFL_DUMP(NOTE_TRACKERR);
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KEVFFL_DUMP(NOTE_TRACK);
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buf[strlen(buf) - 1] = ')';
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} else if (kev->filter == EVFILT_PROCDESC) {
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snprintf(buf, 1024, "fflags = %x (", kev->fflags);
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KEVFFL_DUMP(NOTE_EXIT);
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KEVFFL_DUMP(NOTE_FORK);
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KEVFFL_DUMP(NOTE_EXEC);
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buf[strlen(buf) - 1] = ')';
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} else if (kev->filter == EVFILT_VNODE) {
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snprintf(buf, 1024, "fflags = %x (", kev->fflags);
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KEVFFL_DUMP(NOTE_DELETE);
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KEVFFL_DUMP(NOTE_WRITE);
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KEVFFL_DUMP(NOTE_EXTEND);
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#if HAVE_NOTE_TRUNCATE
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KEVFFL_DUMP(NOTE_TRUNCATE);
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#endif
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KEVFFL_DUMP(NOTE_ATTRIB);
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KEVFFL_DUMP(NOTE_LINK);
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KEVFFL_DUMP(NOTE_RENAME);
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#if HAVE_NOTE_REVOKE
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KEVFFL_DUMP(NOTE_REVOKE);
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#endif
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buf[strlen(buf) - 1] = ')';
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} else {
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snprintf(buf, 1024, "fflags = %x", kev->fflags);
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}
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return (buf);
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}
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char *
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kevent_flags_dump(struct kevent *kev)
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{
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char *buf;
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#define KEVFL_DUMP(attrib) \
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if (kev->flags & attrib) \
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strncat(buf, #attrib" ", 64);
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if ((buf = calloc(1, 1024)) == NULL)
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abort();
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snprintf(buf, 1024, "flags = %d (", kev->flags);
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KEVFL_DUMP(EV_ADD);
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KEVFL_DUMP(EV_ENABLE);
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KEVFL_DUMP(EV_DISABLE);
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KEVFL_DUMP(EV_DELETE);
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KEVFL_DUMP(EV_ONESHOT);
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KEVFL_DUMP(EV_CLEAR);
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KEVFL_DUMP(EV_EOF);
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KEVFL_DUMP(EV_ERROR);
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#if HAVE_EV_DISPATCH
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KEVFL_DUMP(EV_DISPATCH);
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#endif
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#if HAVE_EV_RECEIPT
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KEVFL_DUMP(EV_RECEIPT);
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#endif
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buf[strlen(buf) - 1] = ')';
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return (buf);
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}
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/* Copied from ../kevent.c kevent_dump() and improved */
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const char *
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kevent_to_str(struct kevent *kev)
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{
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char buf[512];
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snprintf(&buf[0], sizeof(buf),
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"[ident=%ju, filter=%d, %s, %s, data=%jd, udata=%p, "
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"ext=[%jx %jx %jx %jx]",
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(uintmax_t) kev->ident,
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kev->filter,
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kevent_flags_dump(kev),
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kevent_fflags_dump(kev),
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(uintmax_t)kev->data,
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kev->udata,
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(uintmax_t)kev->ext[0],
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(uintmax_t)kev->ext[1],
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(uintmax_t)kev->ext[2],
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(uintmax_t)kev->ext[3]);
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return (strdup(buf));
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}
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void
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kevent_add(int kqfd, struct kevent *kev,
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uintptr_t ident,
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short filter,
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u_short flags,
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u_int fflags,
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intptr_t data,
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void *udata)
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{
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EV_SET(kev, ident, filter, flags, fflags, data, NULL);
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if (kevent(kqfd, kev, 1, NULL, 0, NULL) < 0) {
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printf("Unable to add the following kevent:\n%s\n",
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kevent_to_str(kev));
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err(1, "kevent(): %s", strerror(errno));
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}
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}
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void
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kevent_cmp(struct kevent *k1, struct kevent *k2)
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{
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/* XXX-
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Workaround for inconsistent implementation of kevent(2)
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*/
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#ifdef __FreeBSD__
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if (k1->flags & EV_ADD)
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k2->flags |= EV_ADD;
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#endif
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if (k1->ident != k2->ident || k1->filter != k2->filter ||
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k1->flags != k2->flags || k1->fflags != k2->fflags ||
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k1->data != k2->data || k1->udata != k2->udata ||
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k1->ext[0] != k2->ext[0] || k1->ext[1] != k2->ext[1] ||
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k1->ext[0] != k2->ext[2] || k1->ext[0] != k2->ext[3]) {
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printf("kevent_cmp: mismatch:\n %s !=\n %s\n",
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kevent_to_str(k1), kevent_to_str(k2));
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abort();
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}
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}
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void
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test_begin(const char *func)
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{
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if (cur_test_id)
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free(cur_test_id);
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cur_test_id = strdup(func);
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if (!cur_test_id)
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err(1, "strdup failed");
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printf("\n\nTest %d: %s\n", testnum++, func);
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}
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void
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success(void)
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{
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printf("%-70s %s\n", cur_test_id, "passed");
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free(cur_test_id);
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cur_test_id = NULL;
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}
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void
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test_kqueue(void)
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{
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test_begin("kqueue()");
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if ((kqfd = kqueue()) < 0)
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err(1, "kqueue()");
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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_kqueue_close(void)
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{
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test_begin("close(kq)");
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if (close(kqfd) < 0)
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err(1, "close()");
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success();
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}
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int
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main(int argc, char **argv)
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{
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int test_proc = 1;
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int test_socket = 1;
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int test_signal = 1;
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int test_vnode = 1;
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int test_timer = 1;
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#ifdef __FreeBSD__
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int test_user = 1;
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#else
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/* XXX-FIXME temporary */
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int test_user = 0;
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#endif
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while (argc) {
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if (strcmp(argv[0], "--no-proc") == 0)
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test_proc = 0;
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if (strcmp(argv[0], "--no-socket") == 0)
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test_socket = 0;
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if (strcmp(argv[0], "--no-timer") == 0)
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test_timer = 0;
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if (strcmp(argv[0], "--no-signal") == 0)
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test_signal = 0;
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if (strcmp(argv[0], "--no-vnode") == 0)
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test_vnode = 0;
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if (strcmp(argv[0], "--no-user") == 0)
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test_user = 0;
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argv++;
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argc--;
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}
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/*
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* Some tests fork. If output is fully buffered,
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* the children inherit some buffered data and flush
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* it when they exit, causing some data to be printed twice.
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* Use line buffering to avoid this problem.
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*/
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setlinebuf(stdout);
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setlinebuf(stderr);
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test_kqueue();
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test_kqueue_close();
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if (test_socket)
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test_evfilt_read();
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if (test_signal)
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test_evfilt_signal();
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if (test_vnode)
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test_evfilt_vnode();
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#if HAVE_EVFILT_USER
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if (test_user)
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test_evfilt_user();
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#endif
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if (test_timer)
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test_evfilt_timer();
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if (test_proc)
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test_evfilt_proc();
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printf("\n---\n"
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"+OK All %d tests completed.\n", testnum - 1);
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return (0);
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}
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