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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <stdlib.h> | |
23 | #include <sys/mman.h> | |
24 | #include <unistd.h> | |
2d5bdf5b | 25 | #include <fcntl.h> |
2a2507e6 LP |
26 | |
27 | #include "log.h" | |
28 | #include "macro.h" | |
29 | #include "util.h" | |
30 | #include "mmap-cache.h" | |
31 | ||
32 | int main(int argc, char *argv[]) { | |
33 | int x, y, z, r; | |
34 | char px[] = "/tmp/testmmapXXXXXXX", py[] = "/tmp/testmmapYXXXXXX", pz[] = "/tmp/testmmapZXXXXXX"; | |
35 | MMapCache *m; | |
36 | void *p, *q; | |
37 | ||
38 | assert_se(m = mmap_cache_new()); | |
39 | ||
2d5bdf5b | 40 | x = mkostemp_safe(px, O_RDWR|O_CLOEXEC); |
2a2507e6 LP |
41 | assert(x >= 0); |
42 | unlink(px); | |
43 | ||
2d5bdf5b | 44 | y = mkostemp_safe(py, O_RDWR|O_CLOEXEC); |
2a2507e6 LP |
45 | assert(y >= 0); |
46 | unlink(py); | |
47 | ||
2d5bdf5b | 48 | z = mkostemp_safe(pz, O_RDWR|O_CLOEXEC); |
2a2507e6 LP |
49 | assert(z >= 0); |
50 | unlink(pz); | |
51 | ||
52 | r = mmap_cache_get(m, x, PROT_READ, 0, false, 1, 2, NULL, &p); | |
53 | assert(r >= 0); | |
54 | ||
55 | r = mmap_cache_get(m, x, PROT_READ, 0, false, 2, 2, NULL, &q); | |
56 | assert(r >= 0); | |
57 | ||
58 | assert((uint8_t*) p + 1 == (uint8_t*) q); | |
59 | ||
60 | r = mmap_cache_get(m, x, PROT_READ, 1, false, 3, 2, NULL, &q); | |
61 | assert(r >= 0); | |
62 | ||
63 | assert((uint8_t*) p + 2 == (uint8_t*) q); | |
64 | ||
65 | r = mmap_cache_get(m, x, PROT_READ, 0, false, 16ULL*1024ULL*1024ULL, 2, NULL, &p); | |
66 | assert(r >= 0); | |
67 | ||
68 | r = mmap_cache_get(m, x, PROT_READ, 1, false, 16ULL*1024ULL*1024ULL+1, 2, NULL, &q); | |
69 | assert(r >= 0); | |
70 | ||
71 | assert((uint8_t*) p + 1 == (uint8_t*) q); | |
72 | ||
73 | mmap_cache_unref(m); | |
74 | ||
03e334a1 LP |
75 | safe_close(x); |
76 | safe_close(y); | |
77 | safe_close(z); | |
2a2507e6 LP |
78 | |
79 | return 0; | |
80 | } |