4 # Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
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.
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
30 # Test scenario by kib@
37 sed '1,/^EOF/d' < $odir/$0 > kevent.c
38 cc -o kevent -Wall kevent.c -pthread
59 #include <sys/types.h>
60 #include <sys/event.h>
72 err(const char *msg, int err_no)
74 fprintf(stderr, "%s: %s\n", msg, strerror(err_no));
90 bzero(&kev, sizeof(kev));
92 kev.flags = EV_ADD | EV_ENABLE;
93 kev.filter = EVFILT_PROC;
94 kev.fflags = NOTE_EXIT | NOTE_FORK | NOTE_EXEC | NOTE_TRACK;
97 int res = kevent(kq, &kev, 1, NULL, 0, NULL);
106 snprintf(msg, sizeof(msg),
107 "kevent - add watch for pid %u", pid);
119 bzero(&kev, sizeof(kev));
121 kev.flags = EV_DELETE;
122 kev.filter = EVFILT_PROC;
125 int res = kevent(kq, &kev, 1, NULL, 0, NULL);
134 snprintf(msg, sizeof(msg),
135 "kevent - del watch for pid %u", pid);
145 struct kevent kev[10];
150 bzero(&kev, sizeof(kev));
151 int res = kevent(kq, NULL, 0, kev,
152 sizeof(kev) / sizeof(kev[0]), NULL);
160 err("kevent", errno);
163 for (i = 0; i < res; i++) {
165 if (kev[i].fflags & NOTE_CHILD) {
167 printf("%u - new process, parent %u\n", pid, kev[i].data);
169 if (kev[i].fflags & NOTE_FORK) {
170 printf("%u forked\n", pid);
172 if (kev[i].fflags & NOTE_EXEC) {
173 printf("%u called exec\n", pid);
175 if (kev[i].fflags & NOTE_EXIT) {
176 printf("%u exited\n", pid);
179 if (kev[i].fflags & NOTE_TRACK) {
180 printf("%u forked - track\n", pid);
182 if (kev[i].fflags & NOTE_TRACKERR) {
183 fprintf(stderr, "%u - track error\n", pid);
189 int main(int argc, char *argv[])
192 fprintf(stderr, "pid ?\n");
195 pid_t parent = atoi(argv[1]);