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 #include "CancellationSignal.h"
18 
19 #include <android-base/logging.h>
20 #include <chrono>
21 
22 namespace aidl::android::hardware::biometrics::fingerprint {
23 
CancellationSignal(std::promise<void> && cancellationPromise)24 CancellationSignal::CancellationSignal(std::promise<void>&& cancellationPromise)
25     : mCancellationPromise(std::move(cancellationPromise)) {}
26 
cancel()27 ndk::ScopedAStatus CancellationSignal::cancel() {
28     mCancellationPromise.set_value();
29     return ndk::ScopedAStatus::ok();
30 }
31 
shouldCancel(const std::future<void> & f)32 bool shouldCancel(const std::future<void>& f) {
33     CHECK(f.valid());
34     return f.wait_for(std::chrono::seconds(0)) == std::future_status::ready;
35 }
36 
37 }  // namespace aidl::android::hardware::biometrics::fingerprint
38