1 /*
2 * Copyright (c) 2018 The strace developers.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include "mmap_notify.h"
28
29 struct mmap_notify_client {
30 mmap_notify_fn fn;
31 void *data;
32 struct mmap_notify_client *next;
33 };
34
35 static struct mmap_notify_client *clients;
36
37 void
mmap_notify_register_client(mmap_notify_fn fn,void * data)38 mmap_notify_register_client(mmap_notify_fn fn, void *data)
39 {
40 struct mmap_notify_client *client = xmalloc(sizeof(*client));
41 client->fn = fn;
42 client->data = data;
43 client->next = clients;
44 clients = client;
45 }
46
47 void
mmap_notify_report(struct tcb * tcp)48 mmap_notify_report(struct tcb *tcp)
49 {
50 struct mmap_notify_client *client;
51
52 for (client = clients; client; client = client->next)
53 client->fn(tcp, client->data);
54 }
55