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 <gtest/gtest.h> 30 31 #include <errno.h> 32 #include <sys/msg.h> 33 34 #include "TemporaryFile.h" 35 36 TEST(sys_msg, smoke) { 37 if (msgctl(-1, IPC_STAT, nullptr) == -1 && errno == ENOSYS) { 38 GTEST_LOG_(INFO) << "no <sys/msg.h> support in this kernel\n"; 39 return; 40 } 41 42 // Create a queue. 43 TemporaryDir dir; 44 key_t key = ftok(dir.dirname, 1); 45 int id = msgget(key, IPC_CREAT|0666); 46 ASSERT_NE(id, -1); 47 48 // Queue should be empty. 49 msqid_ds ds; 50 memset(&ds, 0, sizeof(ds)); 51 ASSERT_EQ(0, msgctl(id, IPC_STAT, &ds)); 52 ASSERT_EQ(0U, ds.msg_qnum); 53 ASSERT_EQ(0U, ds.msg_cbytes); 54 55 // Send a message. 56 struct { 57 long type; 58 char data[32]; 59 } msg = { 1, "hello world" }; 60 ASSERT_EQ(0, msgsnd(id, &msg, sizeof(msg), 0)); 61 62 // Queue should be non-empty. 63 ASSERT_EQ(0, msgctl(id, IPC_STAT, &ds)); 64 ASSERT_EQ(1U, ds.msg_qnum); 65 ASSERT_EQ(sizeof(msg), ds.msg_cbytes); 66 67 // Read the message. 68 memset(&msg, 0, sizeof(msg)); 69 ASSERT_EQ(static_cast<ssize_t>(sizeof(msg)), msgrcv(id, &msg, sizeof(msg), 0, 0)); 70 ASSERT_EQ(1, msg.type); 71 ASSERT_STREQ("hello world", msg.data); 72 73 // Destroy the queue. 74 ASSERT_EQ(0, msgctl(id, IPC_RMID, 0)); 75 } 76 77 TEST(sys_msg, msgctl_failure) { 78 errno = 0; 79 ASSERT_EQ(-1, msgctl(-1, IPC_STAT, nullptr)); 80 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS); 81 } 82 83 TEST(sys_msg, msgget_failure) { 84 errno = 0; 85 ASSERT_EQ(-1, msgget(-1, 0)); 86 ASSERT_TRUE(errno == ENOENT || errno == ENOSYS); 87 } 88 89 TEST(sys_msg, msgrcv_failure) { 90 errno = 0; 91 ASSERT_EQ(-1, msgrcv(-1, nullptr, 0, 0, 0)); 92 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS); 93 } 94 95 TEST(sys_msg, msgsnd_failure) { 96 errno = 0; 97 ASSERT_EQ(-1, msgsnd(-1, "", 0, 0)); 98 ASSERT_TRUE(errno == EINVAL || errno == ENOSYS); 99 } 100
