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 #include "It_container_test.h"
31
ChildFun(void * p)32 static int ChildFun(void *p)
33 {
34 (void)p;
35 return getpid();
36 }
37
ChildFunClone2()38 static int ChildFunClone2()
39 {
40 void *pstk = malloc(STACK_SIZE);
41 if (pstk == NULL) {
42 return -1;
43 }
44 int childPid = clone(ChildFun, (char *)pstk + STACK_SIZE, SIGCHLD, NULL);
45
46 free(pstk);
47 return childPid;
48 }
49
ChildFunClone1(void * p)50 static int ChildFunClone1(void *p)
51 {
52 (void)p;
53 pid_t pid = getpid();
54 const int COUNT = 100;
55 int childPid;
56 int childFunRet = (int)pid;
57 int processCount = 0;
58 int ret;
59 int status;
60
61 for (int i = 0; i < COUNT; i++) {
62 childPid = ChildFunClone2();
63 if (childPid != -1) {
64 processCount++;
65 } else {
66 ret = wait(&status);
67 if (ret > 0) {
68 processCount--;
69 } else {
70 sleep(1);
71 }
72 continue;
73 }
74 }
75
76 ret = 0;
77 while (processCount > 0) {
78 ret = wait(&status);
79 if (ret > 0) {
80 processCount--;
81 }
82 }
83
84 return childFunRet;
85 }
86
ItPidContainer003(void)87 void ItPidContainer003(void)
88 {
89 int status;
90 int ret;
91 void *pstk = malloc(STACK_SIZE);
92 ASSERT_TRUE(pstk != NULL);
93 int childPid = clone(ChildFunClone1, (char *)pstk + STACK_SIZE, CLONE_NEWPID | SIGCHLD, NULL);
94 ASSERT_NE(childPid, -1);
95
96 ret = waitpid(childPid, &status, 0);
97 ASSERT_EQ(ret, childPid);
98 ret = WIFEXITED(status);
99 ASSERT_NE(ret, 0);
100 ret = WEXITSTATUS(status);
101 ASSERT_EQ(ret, CONTAINER_FIRST_PID);
102
103 sleep(5); /* 5: Wait for process resources to be reclaimed */
104 }
105