1/*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <stdio.h>
17#include <stdlib.h>
18#include <errno.h>
19#include <time.h>
20#include <unistd.h>
21#include "test.h"
22
23/**
24 * @tc.name      : vfork_0100
25 * @tc.desc      : The parent process will execute after the child process exits, and the two share memory space
26 * @tc.level     : Level 0
27 */
28void vfork_0100()
29{
30    int a = 1;
31    int b = 2;
32
33    pid_t pid;
34    pid = vfork();
35
36    if (pid < 0) {
37        t_error("%s vfork failed\n", __func__);
38    } else if (pid == 0) {
39        sleep(1);
40        printf("child\n");
41        a = 10;
42        b = 20;
43        _exit(0);
44    } else if (pid > 0) {
45        if (a == 1 || b == 2) {
46            t_error("%s failed, a is %d, b is %d\n", __func__, a, b);
47        }
48    }
49}
50
51int main(int argc, char *argv[])
52{
53    vfork_0100();
54    return t_status;
55}