1 /*
2 * Copyright 2019 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 "os/thread.h"
18
19 #include <sys/eventfd.h>
20
21 #include "gtest/gtest.h"
22 #include "os/reactor.h"
23
24 namespace bluetooth {
25 namespace os {
26 namespace {
27
28 constexpr int kCheckIsSameThread = 1;
29
30 class SampleReactable {
31 public:
SampleReactable(Thread * thread)32 explicit SampleReactable(Thread* thread) : thread_(thread), fd_(eventfd(0, 0)), is_same_thread_checked_(false) {
33 EXPECT_NE(fd_, 0);
34 }
35
~SampleReactable()36 ~SampleReactable() {
37 close(fd_);
38 }
39
OnReadReady()40 void OnReadReady() {
41 EXPECT_TRUE(thread_->IsSameThread());
42 is_same_thread_checked_ = true;
43 uint64_t val;
44 eventfd_read(fd_, &val);
45 }
46
IsSameThreadCheckDone()47 bool IsSameThreadCheckDone() {
48 return is_same_thread_checked_;
49 }
50
51 Thread* thread_;
52 int fd_;
53 bool is_same_thread_checked_;
54 };
55
56 class ThreadTest : public ::testing::Test {
57 protected:
SetUp()58 void SetUp() override {
59 thread = new Thread("test", Thread::Priority::NORMAL);
60 }
61
TearDown()62 void TearDown() override {
63 delete thread;
64 }
65 Thread* thread = nullptr;
66 };
67
TEST_F(ThreadTest,just_stop_no_op)68 TEST_F(ThreadTest, just_stop_no_op) {
69 thread->Stop();
70 }
71
TEST_F(ThreadTest,thread_name)72 TEST_F(ThreadTest, thread_name) {
73 EXPECT_EQ(thread->GetThreadName(), "test");
74 }
75
TEST_F(ThreadTest,thread_to_string)76 TEST_F(ThreadTest, thread_to_string) {
77 EXPECT_NE(thread->ToString().find("test"), std::string::npos);
78 }
79
TEST_F(ThreadTest,not_same_thread)80 TEST_F(ThreadTest, not_same_thread) {
81 EXPECT_FALSE(thread->IsSameThread());
82 }
83
TEST_F(ThreadTest,same_thread)84 TEST_F(ThreadTest, same_thread) {
85 Reactor* reactor = thread->GetReactor();
86 SampleReactable sample_reactable(thread);
87 auto* reactable =
88 reactor->Register(sample_reactable.fd_, std::bind(&SampleReactable::OnReadReady, &sample_reactable), nullptr);
89 int fd = sample_reactable.fd_;
90 int write_result = eventfd_write(fd, kCheckIsSameThread);
91 EXPECT_EQ(write_result, 0);
92 while (!sample_reactable.IsSameThreadCheckDone()) std::this_thread::yield();
93 reactor->Unregister(reactable);
94 }
95
96 } // namespace
97 } // namespace os
98 } // namespace bluetooth
99