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 <gtest/gtest.h>
18
19 #include <condition_variable>
20 #include <mutex>
21 #include <thread>
22
23 #include "adb_io.h"
24 #include "adb_unique_fd.h"
25 #include "socket.h"
26 #include "sysdeps.h"
27 #include "sysdeps/chrono.h"
28
WaitForFdeventLoop()29 static void WaitForFdeventLoop() {
30 // Sleep for a bit to make sure that network events have propagated.
31 std::this_thread::sleep_for(100ms);
32
33 // fdevent_run_on_looper has a guaranteed ordering, and is guaranteed to happen after
34 // socket events, so as soon as our function is called, we know that we've processed all
35 // previous events.
36 std::mutex mutex;
37 std::condition_variable cv;
38 std::unique_lock<std::mutex> lock(mutex);
39 fdevent_run_on_looper([&]() {
40 mutex.lock();
41 mutex.unlock();
42 cv.notify_one();
43 });
44 cv.wait(lock);
45 }
46
47 class FdeventTest : public ::testing::Test {
48 protected:
~FdeventTest()49 ~FdeventTest() {
50 if (thread_.joinable()) {
51 TerminateThread();
52 }
53 }
54
SetUpTestCase()55 static void SetUpTestCase() {
56 #if !defined(_WIN32)
57 ASSERT_NE(SIG_ERR, signal(SIGPIPE, SIG_IGN));
58 #endif
59 }
60
SetUp()61 void SetUp() override {
62 fdevent_reset();
63 ASSERT_EQ(0u, fdevent_installed_count());
64 }
65
PrepareThread()66 void PrepareThread() {
67 thread_ = std::thread([]() { fdevent_loop(); });
68 WaitForFdeventLoop();
69 }
70
TerminateThread()71 void TerminateThread() {
72 fdevent_terminate_loop();
73 thread_.join();
74 }
75
76 std::thread thread_;
77 };
78