1 /*
2 * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this list of
8 * conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <iostream>
32 #include "It_container_test.h"
33
GenTimeLinkPath(int pid)34 static std::string GenTimeLinkPath(int pid)
35 {
36 std::ostringstream buf;
37 buf << "/proc/" << pid << "/container/time";
38 return buf.str();
39 }
40
ReadlinkTime(int pid)41 static std::string ReadlinkTime(int pid)
42 {
43 auto path = GenTimeLinkPath(pid);
44 struct stat sb;
45
46 int ret = lstat(path.data(), &sb);
47 if (ret == -1) {
48 perror("lstat");
49 return std::string();
50 }
51
52 auto bufsiz = sb.st_size + 1;
53 if (sb.st_size == 0) {
54 bufsiz = PATH_MAX;
55 }
56
57 std::vector<char> buf(bufsiz);
58 auto nbytes = readlink(path.c_str(), buf.data(), bufsiz);
59 if (nbytes == -1) {
60 perror("readlink");
61 return std::string();
62 }
63
64 return buf.data();
65 }
66
ItTimeContainer009(void)67 void ItTimeContainer009(void)
68 {
69 auto timelink = ReadlinkTime(getpid());
70 std::cout << "Contents of the time link is: " << timelink << std::endl;
71
72 std::regex reg("'time:\\[[0-9]+\\]'");
73 bool ret = std::regex_match(timelink, reg);
74 ASSERT_TRUE(ret);
75 }
76