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)
34 : thread_(thread), fd_(eventfd(0, 0)), is_same_thread_checked_(false) {
35 EXPECT_NE(fd_, 0);
36 }
37
~SampleReactable()38 ~SampleReactable() { close(fd_); }
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() { return is_same_thread_checked_; }
48
49 Thread* thread_;
50 int fd_;
51 bool is_same_thread_checked_;
52 };
53
54 class ThreadTest : public ::testing::Test {
55 protected:
SetUp()56 void SetUp() override { thread = new Thread("test", Thread::Priority::NORMAL); }
57
TearDown()58 void TearDown() override { delete thread; }
59 Thread* thread = nullptr;
60 };
61
TEST_F(ThreadTest,just_stop_no_op)62 TEST_F(ThreadTest, just_stop_no_op) { thread->Stop(); }
63
TEST_F(ThreadTest,thread_name)64 TEST_F(ThreadTest, thread_name) { EXPECT_EQ(thread->GetThreadName(), "test"); }
65
TEST_F(ThreadTest,thread_to_string)66 TEST_F(ThreadTest, thread_to_string) {
67 EXPECT_NE(thread->ToString().find("test"), std::string::npos);
68 }
69
TEST_F(ThreadTest,not_same_thread)70 TEST_F(ThreadTest, not_same_thread) { EXPECT_FALSE(thread->IsSameThread()); }
71
TEST_F(ThreadTest,same_thread)72 TEST_F(ThreadTest, same_thread) {
73 Reactor* reactor = thread->GetReactor();
74 SampleReactable sample_reactable(thread);
75 auto* reactable = reactor->Register(
76 sample_reactable.fd_,
77 common::Bind(&SampleReactable::OnReadReady, common::Unretained(&sample_reactable)),
78 common::Closure());
79 int fd = sample_reactable.fd_;
80 int write_result = eventfd_write(fd, kCheckIsSameThread);
81 EXPECT_EQ(write_result, 0);
82 while (!sample_reactable.IsSameThreadCheckDone()) {
83 std::this_thread::yield();
84 }
85 reactor->Unregister(reactable);
86 }
87
88 } // namespace
89 } // namespace os
90 } // namespace bluetooth
91