1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <procinfo/process.h>
18
19 #include <fcntl.h>
20 #include <stdlib.h>
21 #include <sys/types.h>
22 #include <unistd.h>
23
24 #include <set>
25 #include <thread>
26 #include <vector>
27
28 #include <gtest/gtest.h>
29
30 #include <android-base/stringprintf.h>
31
32 #if !defined(__BIONIC__)
33 #include <syscall.h>
gettid()34 static pid_t gettid() {
35 return syscall(__NR_gettid);
36 }
37 #endif
38
TEST(process_info,process_info_smoke)39 TEST(process_info, process_info_smoke) {
40 android::procinfo::ProcessInfo self;
41 ASSERT_TRUE(android::procinfo::GetProcessInfo(gettid(), &self));
42 ASSERT_EQ(gettid(), self.tid);
43 ASSERT_EQ(getpid(), self.pid);
44 ASSERT_EQ(getppid(), self.ppid);
45 ASSERT_EQ(getuid(), self.uid);
46 ASSERT_EQ(getgid(), self.gid);
47 }
48
TEST(process_info,process_info_proc_pid_fd_smoke)49 TEST(process_info, process_info_proc_pid_fd_smoke) {
50 android::procinfo::ProcessInfo self;
51 int fd = open(android::base::StringPrintf("/proc/%d", gettid()).c_str(), O_DIRECTORY | O_RDONLY);
52 ASSERT_NE(-1, fd);
53 ASSERT_TRUE(android::procinfo::GetProcessInfoFromProcPidFd(fd, &self));
54
55 // Process name is capped at 15 bytes.
56 ASSERT_EQ("libprocinfo_tes", self.name);
57 ASSERT_EQ(gettid(), self.tid);
58 ASSERT_EQ(getpid(), self.pid);
59 ASSERT_EQ(getppid(), self.ppid);
60 ASSERT_EQ(getuid(), self.uid);
61 ASSERT_EQ(getgid(), self.gid);
62 close(fd);
63 }
64
TEST(process_info,process_tids_smoke)65 TEST(process_info, process_tids_smoke) {
66 pid_t main_tid = gettid();
67 std::thread([main_tid]() {
68 pid_t thread_tid = gettid();
69
70 {
71 std::vector<pid_t> vec;
72 ASSERT_TRUE(android::procinfo::GetProcessTids(getpid(), &vec));
73 ASSERT_EQ(1, std::count(vec.begin(), vec.end(), main_tid));
74 ASSERT_EQ(1, std::count(vec.begin(), vec.end(), thread_tid));
75 }
76
77 {
78 std::set<pid_t> set;
79 ASSERT_TRUE(android::procinfo::GetProcessTids(getpid(), &set));
80 ASSERT_EQ(1, std::count(set.begin(), set.end(), main_tid));
81 ASSERT_EQ(1, std::count(set.begin(), set.end(), thread_tid));
82 }
83 }).join();
84 }
85