69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* Utils file for any Context Hub VTS code (i.e. not specific to e.g. HIDL).
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*/
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#pragma once
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#include <chrono>
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#include <future>
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namespace android {
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namespace hardware {
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namespace contexthub {
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namespace vts_utils {
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// App ID with vendor "GoogT" (Google Testing), app identifier 0x555555. This
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// app ID is reserved and must never appear in the list of loaded apps.
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constexpr uint64_t kNonExistentAppId = 0x476f6f6754555555;
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// Helper that does explicit conversion of an enum class to its underlying/base
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// type. Useful for stream output of enum values.
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template <typename EnumType>
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inline constexpr typename std::underlying_type<EnumType>::type asBaseType(EnumType value) {
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return static_cast<typename std::underlying_type<EnumType>::type>(value);
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}
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// Wait for a callback to occur (signaled by the given future) up to the
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// provided timeout. If the future is invalid or the callback does not come
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// within the given time, returns false.
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template <class ReturnType>
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bool waitForCallback(std::future<ReturnType> future, ReturnType* result,
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std::chrono::milliseconds timeout = std::chrono::seconds(5)) {
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auto expiration = std::chrono::system_clock::now() + timeout;
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EXPECT_NE(result, nullptr);
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EXPECT_TRUE(future.valid());
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if (result != nullptr && future.valid()) {
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std::future_status status = future.wait_until(expiration);
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EXPECT_NE(status, std::future_status::timeout) << "Timed out waiting for callback";
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if (status == std::future_status::ready) {
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*result = future.get();
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return true;
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}
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}
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return false;
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}
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} // namespace vts_utils
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} // namespace contexthub
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} // namespace hardware
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} // namespace android
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