1*8d67ca89SAndroid Build Coastguard Worker /*
2*8d67ca89SAndroid Build Coastguard Worker * Copyright (C) 2016 The Android Open Source Project
3*8d67ca89SAndroid Build Coastguard Worker * All rights reserved.
4*8d67ca89SAndroid Build Coastguard Worker *
5*8d67ca89SAndroid Build Coastguard Worker * Redistribution and use in source and binary forms, with or without
6*8d67ca89SAndroid Build Coastguard Worker * modification, are permitted provided that the following conditions
7*8d67ca89SAndroid Build Coastguard Worker * are met:
8*8d67ca89SAndroid Build Coastguard Worker * * Redistributions of source code must retain the above copyright
9*8d67ca89SAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer.
10*8d67ca89SAndroid Build Coastguard Worker * * Redistributions in binary form must reproduce the above copyright
11*8d67ca89SAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer in
12*8d67ca89SAndroid Build Coastguard Worker * the documentation and/or other materials provided with the
13*8d67ca89SAndroid Build Coastguard Worker * distribution.
14*8d67ca89SAndroid Build Coastguard Worker *
15*8d67ca89SAndroid Build Coastguard Worker * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16*8d67ca89SAndroid Build Coastguard Worker * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17*8d67ca89SAndroid Build Coastguard Worker * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18*8d67ca89SAndroid Build Coastguard Worker * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19*8d67ca89SAndroid Build Coastguard Worker * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20*8d67ca89SAndroid Build Coastguard Worker * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21*8d67ca89SAndroid Build Coastguard Worker * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22*8d67ca89SAndroid Build Coastguard Worker * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23*8d67ca89SAndroid Build Coastguard Worker * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24*8d67ca89SAndroid Build Coastguard Worker * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25*8d67ca89SAndroid Build Coastguard Worker * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*8d67ca89SAndroid Build Coastguard Worker * SUCH DAMAGE.
27*8d67ca89SAndroid Build Coastguard Worker */
28*8d67ca89SAndroid Build Coastguard Worker
29*8d67ca89SAndroid Build Coastguard Worker #include <errno.h>
30*8d67ca89SAndroid Build Coastguard Worker #include <sys/shm.h>
31*8d67ca89SAndroid Build Coastguard Worker
32*8d67ca89SAndroid Build Coastguard Worker #include <android-base/file.h>
33*8d67ca89SAndroid Build Coastguard Worker #include <gtest/gtest.h>
34*8d67ca89SAndroid Build Coastguard Worker
TEST(sys_shm,smoke)35*8d67ca89SAndroid Build Coastguard Worker TEST(sys_shm, smoke) {
36*8d67ca89SAndroid Build Coastguard Worker if (shmctl(-1, IPC_STAT, nullptr) == -1 && errno == ENOSYS) {
37*8d67ca89SAndroid Build Coastguard Worker GTEST_SKIP() << "no <sys/shm.h> support in this kernel";
38*8d67ca89SAndroid Build Coastguard Worker }
39*8d67ca89SAndroid Build Coastguard Worker
40*8d67ca89SAndroid Build Coastguard Worker // Create a segment.
41*8d67ca89SAndroid Build Coastguard Worker TemporaryDir dir;
42*8d67ca89SAndroid Build Coastguard Worker key_t key = ftok(dir.path, 1);
43*8d67ca89SAndroid Build Coastguard Worker int id = shmget(key, 1234, IPC_CREAT|0666);
44*8d67ca89SAndroid Build Coastguard Worker ASSERT_NE(id, -1);
45*8d67ca89SAndroid Build Coastguard Worker
46*8d67ca89SAndroid Build Coastguard Worker // Check segment info.
47*8d67ca89SAndroid Build Coastguard Worker shmid_ds ds;
48*8d67ca89SAndroid Build Coastguard Worker memset(&ds, 0, sizeof(ds));
49*8d67ca89SAndroid Build Coastguard Worker ASSERT_EQ(0, shmctl(id, IPC_STAT, &ds));
50*8d67ca89SAndroid Build Coastguard Worker ASSERT_EQ(1234U, ds.shm_segsz);
51*8d67ca89SAndroid Build Coastguard Worker
52*8d67ca89SAndroid Build Coastguard Worker // Attach.
53*8d67ca89SAndroid Build Coastguard Worker void* p = shmat(id, nullptr, SHM_RDONLY);
54*8d67ca89SAndroid Build Coastguard Worker ASSERT_NE(p, nullptr);
55*8d67ca89SAndroid Build Coastguard Worker
56*8d67ca89SAndroid Build Coastguard Worker // Detach.
57*8d67ca89SAndroid Build Coastguard Worker ASSERT_EQ(0, shmdt(p));
58*8d67ca89SAndroid Build Coastguard Worker
59*8d67ca89SAndroid Build Coastguard Worker // Destroy the segment.
60*8d67ca89SAndroid Build Coastguard Worker ASSERT_EQ(0, shmctl(id, IPC_RMID, nullptr));
61*8d67ca89SAndroid Build Coastguard Worker }
62*8d67ca89SAndroid Build Coastguard Worker
TEST(sys_shm,shmat_failure)63*8d67ca89SAndroid Build Coastguard Worker TEST(sys_shm, shmat_failure) {
64*8d67ca89SAndroid Build Coastguard Worker errno = 0;
65*8d67ca89SAndroid Build Coastguard Worker ASSERT_EQ(reinterpret_cast<void*>(-1), shmat(-1, nullptr, SHM_RDONLY));
66*8d67ca89SAndroid Build Coastguard Worker ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
67*8d67ca89SAndroid Build Coastguard Worker }
68*8d67ca89SAndroid Build Coastguard Worker
TEST(sys_shm,shmctl_failure)69*8d67ca89SAndroid Build Coastguard Worker TEST(sys_shm, shmctl_failure) {
70*8d67ca89SAndroid Build Coastguard Worker errno = 0;
71*8d67ca89SAndroid Build Coastguard Worker ASSERT_EQ(-1, shmctl(-1, IPC_STAT, nullptr));
72*8d67ca89SAndroid Build Coastguard Worker ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
73*8d67ca89SAndroid Build Coastguard Worker }
74*8d67ca89SAndroid Build Coastguard Worker
TEST(sys_shm,shmdt_failure)75*8d67ca89SAndroid Build Coastguard Worker TEST(sys_shm, shmdt_failure) {
76*8d67ca89SAndroid Build Coastguard Worker #pragma clang diagnostic push
77*8d67ca89SAndroid Build Coastguard Worker #pragma clang diagnostic ignored "-Wnonnull"
78*8d67ca89SAndroid Build Coastguard Worker errno = 0;
79*8d67ca89SAndroid Build Coastguard Worker ASSERT_EQ(-1, shmdt(nullptr));
80*8d67ca89SAndroid Build Coastguard Worker ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
81*8d67ca89SAndroid Build Coastguard Worker #pragma clang diagnostic pop
82*8d67ca89SAndroid Build Coastguard Worker }
83*8d67ca89SAndroid Build Coastguard Worker
TEST(sys_shm,shmget_failure)84*8d67ca89SAndroid Build Coastguard Worker TEST(sys_shm, shmget_failure) {
85*8d67ca89SAndroid Build Coastguard Worker errno = 0;
86*8d67ca89SAndroid Build Coastguard Worker ASSERT_EQ(-1, shmget(-1, 1234, 0));
87*8d67ca89SAndroid Build Coastguard Worker ASSERT_TRUE(errno == ENOENT || errno == ENOSYS);
88*8d67ca89SAndroid Build Coastguard Worker }
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