1#!/bin/sh 2 3# 4# Copyright (c) 2008 Peter Holm <pho@FreeBSD.org> 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28# $FreeBSD$ 29# 30 31. ../default.cfg 32 33odir=`pwd` 34 35cd /tmp 36sed '1,/^EOF/d' < $odir/$0 > kevent.c 37cc -o kevent -Wall kevent.c -pthread 38rm -f kevent.c 39cd $RUNDIR 40 41for i in `jot 64`; do 42 for j in `jot 12`; do 43 /tmp/kevent > /dev/null 2>&1 & 44 done 45 for j in `jot 12`; do 46 wait 47 done 48done 49exit 50EOF 51/* 52 * Obtained from: 53 * http://projects.info-pull.com/mokb/MOKB-24-11-2006.html 54 */ 55#include <sys/types.h> 56#include <sys/event.h> 57#include <sys/time.h> 58#include <stdio.h> 59#include <unistd.h> 60 61int main(void) 62{ 63 struct kevent ke; 64 int kq; 65 kq = kqueue(); 66 EV_SET(&ke, getpid(), EVFILT_PROC, EV_ADD, 67 NOTE_EXIT|NOTE_EXEC|NOTE_TRACK, 0, NULL); 68 kevent(kq, &ke, 1, NULL, 0, NULL); 69 if (fork() != 0) 70 kevent(kq, NULL, 0, &ke, 1, NULL); 71 return (0); 72} 73