1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <errno.h>
30 #include <sys/shm.h>
31
32 #include <android-base/file.h>
33 #include <gtest/gtest.h>
34
TEST(sys_shm,smoke)35 TEST(sys_shm, smoke) {
36 if (shmctl(-1, IPC_STAT, nullptr) == -1 && errno == ENOSYS) {
37 GTEST_SKIP() << "no <sys/shm.h> support in this kernel";
38 }
39
40 // Create a segment.
41 TemporaryDir dir;
42 key_t key = ftok(dir.path, 1);
43 int id = shmget(key, 1234, IPC_CREAT|0666);
44 ASSERT_NE(id, -1);
45
46 // Check segment info.
47 shmid_ds ds;
48 memset(&ds, 0, sizeof(ds));
49 ASSERT_EQ(0, shmctl(id, IPC_STAT, &ds));
50 ASSERT_EQ(1234U, ds.shm_segsz);
51
52 // Attach.
53 void* p = shmat(id, nullptr, SHM_RDONLY);
54 ASSERT_NE(p, nullptr);
55
56 // Detach.
57 ASSERT_EQ(0, shmdt(p));
58
59 // Destroy the segment.
60 ASSERT_EQ(0, shmctl(id, IPC_RMID, nullptr));
61 }
62
TEST(sys_shm,shmat_failure)63 TEST(sys_shm, shmat_failure) {
64 errno = 0;
65 ASSERT_EQ(reinterpret_cast<void*>(-1), shmat(-1, nullptr, SHM_RDONLY));
66 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
67 }
68
TEST(sys_shm,shmctl_failure)69 TEST(sys_shm, shmctl_failure) {
70 errno = 0;
71 ASSERT_EQ(-1, shmctl(-1, IPC_STAT, nullptr));
72 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
73 }
74
TEST(sys_shm,shmdt_failure)75 TEST(sys_shm, shmdt_failure) {
76 errno = 0;
77 ASSERT_EQ(-1, shmdt(nullptr));
78 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
79 }
80
TEST(sys_shm,shmget_failure)81 TEST(sys_shm, shmget_failure) {
82 errno = 0;
83 ASSERT_EQ(-1, shmget(-1, 1234, 0));
84 ASSERT_TRUE(errno == ENOENT || errno == ENOSYS);
85 }
86