1 /*
2 * Copyright (C) 2012 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 <gtest/gtest.h>
18
19 #include <errno.h>
20 #include <pthread.h>
21 #include <unistd.h>
22
TEST(pthread,pthread_key_create)23 TEST(pthread, pthread_key_create) {
24 pthread_key_t key;
25 ASSERT_EQ(0, pthread_key_create(&key, NULL));
26 ASSERT_EQ(0, pthread_key_delete(key));
27 // Can't delete a key that's already been deleted.
28 ASSERT_EQ(EINVAL, pthread_key_delete(key));
29 }
30
IdFn(void * arg)31 static void* IdFn(void* arg) {
32 return arg;
33 }
34
SleepFn(void * arg)35 static void* SleepFn(void* arg) {
36 sleep(reinterpret_cast<unsigned int>(arg));
37 return NULL;
38 }
39
JoinFn(void * arg)40 static void* JoinFn(void* arg) {
41 return reinterpret_cast<void*>(pthread_join(reinterpret_cast<pthread_t>(arg), NULL));
42 }
43
TEST(pthread,pthread_create)44 TEST(pthread, pthread_create) {
45 void* expected_result = reinterpret_cast<void*>(123);
46 // Can we create a thread?
47 pthread_t t;
48 ASSERT_EQ(0, pthread_create(&t, NULL, IdFn, expected_result));
49 // If we join, do we get the expected value back?
50 void* result;
51 ASSERT_EQ(0, pthread_join(t, &result));
52 ASSERT_EQ(expected_result, result);
53 }
54
TEST(pthread,pthread_no_join_after_detach)55 TEST(pthread, pthread_no_join_after_detach) {
56 pthread_t t1;
57 ASSERT_EQ(0, pthread_create(&t1, NULL, SleepFn, reinterpret_cast<void*>(5)));
58
59 // After a pthread_detach...
60 ASSERT_EQ(0, pthread_detach(t1));
61
62 // ...pthread_join should fail.
63 void* result;
64 ASSERT_EQ(EINVAL, pthread_join(t1, &result));
65 }
66
TEST(pthread,pthread_no_op_detach_after_join)67 TEST(pthread, pthread_no_op_detach_after_join) {
68 pthread_t t1;
69 ASSERT_EQ(0, pthread_create(&t1, NULL, SleepFn, reinterpret_cast<void*>(1)));
70
71 // If thread 2 is already waiting to join thread 1...
72 pthread_t t2;
73 ASSERT_EQ(0, pthread_create(&t2, NULL, JoinFn, reinterpret_cast<void*>(t1)));
74
75 // ...a call to pthread_detach on thread 1 will "succeed"...
76 ASSERT_EQ(0, pthread_detach(t1));
77
78 // ...but the join still goes ahead.
79 void* join_result;
80 ASSERT_EQ(0, pthread_join(t2, &join_result));
81 ASSERT_EQ(EINVAL, reinterpret_cast<int>(join_result));
82 }
83