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 "common/bind.h"
22 #include "gtest/gtest.h"
23 #include "os/reactor.h"
24
25 namespace bluetooth {
26 namespace os {
27 namespace {
28
29 constexpr int kCheckIsSameThread = 1;
30
31 class SampleReactable {
32 public:
SampleReactable(Thread * thread)33 explicit SampleReactable(Thread* thread) : thread_(thread), fd_(eventfd(0, 0)), is_same_thread_checked_(false) {
34 EXPECT_NE(fd_, 0);
35 }
36
~SampleReactable()37 ~SampleReactable() {
38 close(fd_);
39 }
40
OnReadReady()41 void OnReadReady() {
42 EXPECT_TRUE(thread_->IsSameThread());
43 is_same_thread_checked_ = true;
44 uint64_t val;
45 eventfd_read(fd_, &val);
46 }
47
IsSameThreadCheckDone()48 bool IsSameThreadCheckDone() {
49 return is_same_thread_checked_;
50 }
51
52 Thread* thread_;
53 int fd_;
54 bool is_same_thread_checked_;
55 };
56
57 class ThreadTest : public ::testing::Test {
58 protected:
SetUp()59 void SetUp() override {
60 thread = new Thread("test", Thread::Priority::NORMAL);
61 }
62
TearDown()63 void TearDown() override {
64 delete thread;
65 }
66 Thread* thread = nullptr;
67 };
68
TEST_F(ThreadTest,just_stop_no_op)69 TEST_F(ThreadTest, just_stop_no_op) {
70 thread->Stop();
71 }
72
TEST_F(ThreadTest,thread_name)73 TEST_F(ThreadTest, thread_name) {
74 EXPECT_EQ(thread->GetThreadName(), "test");
75 }
76
TEST_F(ThreadTest,thread_to_string)77 TEST_F(ThreadTest, thread_to_string) {
78 EXPECT_NE(thread->ToString().find("test"), std::string::npos);
79 }
80
TEST_F(ThreadTest,not_same_thread)81 TEST_F(ThreadTest, not_same_thread) {
82 EXPECT_FALSE(thread->IsSameThread());
83 }
84
TEST_F(ThreadTest,same_thread)85 TEST_F(ThreadTest, same_thread) {
86 Reactor* reactor = thread->GetReactor();
87 SampleReactable sample_reactable(thread);
88 auto* reactable = reactor->Register(
89 sample_reactable.fd_,
90 common::Bind(&SampleReactable::OnReadReady, common::Unretained(&sample_reactable)),
91 common::Closure());
92 int fd = sample_reactable.fd_;
93 int write_result = eventfd_write(fd, kCheckIsSameThread);
94 EXPECT_EQ(write_result, 0);
95 while (!sample_reactable.IsSameThreadCheckDone()) std::this_thread::yield();
96 reactor->Unregister(reactable);
97 }
98
99 } // namespace
100 } // namespace os
101 } // namespace bluetooth
102