2 * Copyright (c) 2000 Jonathan Lemon <jlemon@flugsvamp.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/lib/libc_r/uthread/uthread_kevent.c,v 1.2.2.6 2002/10/22 14:44:03 fjoe Exp $
27 * $DragonFly: src/lib/libc_r/uthread/uthread_kevent.c,v 1.3 2005/03/20 18:45:15 joerg Exp $
32 #include <sys/types.h>
34 #include <sys/event.h>
36 #include "pthread_private.h"
38 __weak_reference(_kevent, kevent);
41 _kevent(int kq, const struct kevent *changelist, int nchanges,
42 struct kevent *eventlist, int nevents, const struct timespec *timeout)
44 struct pthread *curthread = _get_curthread();
45 struct timespec nullts = { 0, 0 };
48 /* Set the wake up time */
49 _thread_kern_set_timeout(timeout);
51 rc = __sys_kevent(kq, changelist, nchanges,
52 eventlist, nevents, &nullts);
53 if (rc == 0 && eventlist != NULL && nevents > 0 && (timeout == NULL ||
54 timeout->tv_sec != 0 || timeout->tv_nsec != 0)) {
55 /* Save the socket file descriptor: */
56 curthread->data.fd.fd = kq;
57 curthread->data.fd.fname = __FILE__;
58 curthread->data.fd.branch = __LINE__;
61 /* Reset the interrupted and timeout flags: */
62 curthread->interrupted = 0;
63 curthread->timeout = 0;
65 _thread_kern_sched_state(PS_FDR_WAIT,
68 if (curthread->interrupted) {
73 rc = __sys_kevent(kq, NULL, 0,
74 eventlist, nevents, &nullts);
75 } while (rc == 0 && curthread->timeout == 0);