2 This file is part of PulseAudio.
4 Copyright 2009 Lennart Poettering
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
29 #include <pulsecore/memtrap.h>
30 #include <pulsecore/core-util.h>
32 int main(int argc, char *argv[]) {
37 pa_log_set_level(PA_LOG_DEBUG);
39 /* Create the memory map */
40 pa_assert_se((fd = open("sigbus-test-map", O_RDWR|O_TRUNC|O_CREAT, 0660)) >= 0);
41 pa_assert_se(unlink("sigbus-test-map") == 0);
42 pa_assert_se(ftruncate(fd, PA_PAGE_SIZE) >= 0);
43 pa_assert_se((p = mmap(NULL, PA_PAGE_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) != MAP_FAILED);
45 /* Register memory map */
46 m = pa_memtrap_add(p, PA_PAGE_SIZE);
49 pa_snprintf(p, PA_PAGE_SIZE, "This is a test that should work fine.");
51 /* Verify memory map */
52 pa_log("Let's see if this worked: %s", (char*) p);
53 pa_log("And memtrap says it is good: %s", pa_yes_no(pa_memtrap_is_good(m)));
55 /* Invalidate mapping */
56 pa_assert_se(ftruncate(fd, 0) >= 0);
59 pa_snprintf(p, PA_PAGE_SIZE, "This is a test that should fail but get caught.");
61 /* Verify memory map */
62 pa_log("Let's see if this worked: %s", (char*) p);
63 pa_log("And memtrap says it is good: %s", pa_yes_no(pa_memtrap_is_good(m)));
66 munmap(p, PA_PAGE_SIZE);