1 /*
2 * Copyright (C) 2021 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 #pragma once
18
19 #include <chrono>
20 #include <string>
21
22 namespace android::hardware::health::storage::test {
23
24 // Dev GC timeout. This is the timeout used by vold.
25 const uint64_t kDevGcTimeoutSec = 120;
26 const std::chrono::seconds kDevGcTimeout{kDevGcTimeoutSec};
27 // Dev GC timeout tolerance. The HAL may not immediately return after the
28 // timeout, so include an acceptable tolerance.
29 const std::chrono::seconds kDevGcTolerance{3};
30 // Time accounted for RPC calls.
31 const std::chrono::milliseconds kRpcTime{1000};
32
33 template <typename R>
to_string(std::chrono::duration<R,std::milli> time)34 std::string to_string(std::chrono::duration<R, std::milli> time) {
35 return std::to_string(time.count()) + "ms";
36 }
37
38 /** An atomic boolean flag that indicates whether a task has finished. */
39 class Flag {
40 public:
OnFinish()41 void OnFinish() {
42 std::unique_lock<std::mutex> lock(mutex_);
43 OnFinishLocked(&lock);
44 }
45 template <typename R, typename P>
Wait(std::chrono::duration<R,P> duration)46 bool Wait(std::chrono::duration<R, P> duration) {
47 std::unique_lock<std::mutex> lock(mutex_);
48 return WaitLocked(&lock, duration);
49 }
50
51 protected:
52 /** Will unlock. */
OnFinishLocked(std::unique_lock<std::mutex> * lock)53 void OnFinishLocked(std::unique_lock<std::mutex>* lock) {
54 finished_ = true;
55 lock->unlock();
56 cv_.notify_all();
57 }
58 template <typename R, typename P>
WaitLocked(std::unique_lock<std::mutex> * lock,std::chrono::duration<R,P> duration)59 bool WaitLocked(std::unique_lock<std::mutex>* lock, std::chrono::duration<R, P> duration) {
60 cv_.wait_for(*lock, duration, [this] { return finished_; });
61 return finished_;
62 }
63
64 bool finished_{false};
65 std::mutex mutex_;
66 std::condition_variable cv_;
67 };
68
69 } // namespace android::hardware::health::storage::test
70