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 <cstdio>
32 #include "It_process_fs_test.h"
33
gen_proc_pid_meminfo_path(int pid)34 static std::string gen_proc_pid_meminfo_path(int pid)
35 {
36 std::ostringstream buf;
37 buf << "/proc/" << pid << "/meminfo";
38 return buf.str();
39 }
40
operPidMemInfo(std::string strFile)41 static void operPidMemInfo(std::string strFile)
42 {
43 const int FILE_LEN = 1024;
44 char szStatBuf[FILE_LEN];
45 FILE *fp = fopen(strFile.c_str(), "rb");
46 ASSERT_NE(fp, nullptr);
47
48 (void)memset_s(szStatBuf, FILE_LEN, 0, FILE_LEN);
49 int ret = fread(szStatBuf, 1, FILE_LEN, fp);
50 PrintTest("cat %s\n", strFile.c_str());
51 PrintTest("%s\n", szStatBuf);
52 ASSERT_EQ(ret, strlen(szStatBuf));
53
54 char *res = strstr(szStatBuf, "VMSpaceSize");
55 ASSERT_NE(res, nullptr);
56
57 (void)fclose(fp);
58 }
59
ItProcessFs004(void)60 void ItProcessFs004(void)
61 {
62 auto path = gen_proc_pid_meminfo_path(getpid());
63 operPidMemInfo(path);
64 }
65