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 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 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 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 75 TEST(sys_shm, shmdt_failure) { 76 errno = 0; 77 ASSERT_EQ(-1, shmdt(nullptr)); 78 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS); 79 } 80 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
