2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/types.h>
36 #include <sys/event.h>
46 typedef struct monitor_elm {
51 static void usage(int exit_code);
52 static void monitor_add(const char *path);
53 static void monitor_events(void);
55 static int VerboseOpt;
61 static monitor_elm_t *Elms;
64 main(int ac, char **av)
69 while ((ch = getopt(ac, av, "qvx")) != -1) {
99 if ((KQueueFd = kqueue()) < 0) {
103 NumFiles = MaxFiles = 16;
104 Elms = calloc(MaxFiles, sizeof(monitor_elm_t));
106 for (i = 0; i < ac; ++i) {
113 } while (ExitOpt == 0);
119 monitor_add(const char *path)
125 elm = malloc(sizeof(*elm));
126 bzero(elm, sizeof(*elm));
128 elm->fd = open(path, O_RDONLY);
130 printf("%s\tnot found\n", path);
133 EV_SET(&kev, elm->fd, EVFILT_VNODE, EV_ADD|EV_ENABLE|EV_CLEAR,
134 NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND|NOTE_ATTRIB|
135 NOTE_LINK|NOTE_RENAME|NOTE_REVOKE,
137 n = kevent(KQueueFd, &kev, 1, NULL, 0, NULL);
143 if (elm->fd >= NumFiles) {
144 MaxFiles = (elm->fd + 16) * 3 / 2;
145 Elms = realloc(Elms, MaxFiles * sizeof(elm));
146 bzero(&Elms[NumFiles], (MaxFiles - NumFiles) * sizeof(elm));
156 struct kevent kev_array[1];
164 n = kevent(KQueueFd, NULL, 0, kev_array, 1, NULL);
165 for (i = 0; i < n; ++i) {
167 elm = Elms[kev->ident];
168 printf("%-23s", elm->path);
169 if (VerboseOpt && fstat(kev->ident, &st) == 0 &&
170 S_ISREG(st.st_mode)) {
171 printf(" %10jd", (intmax_t)st.st_size);
173 while (QuietOpt == 0 && (bno = ffs(kev->fflags)) > 0) {
176 kev->fflags &= ~(1 << bno);
200 printf("%08x", 1 << bno);
213 "monitor [-vx] files...\n"
214 " -v Be more verbose\n"
215 " -x Exit after first event reported\n"