1 /* 2 * Copyright (C) 2017 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 #ifndef ANDROID_HARDWARE_BROADCASTRADIO_VTS_POINTER_UTILS 17 #define ANDROID_HARDWARE_BROADCASTRADIO_VTS_POINTER_UTILS 18 19 #include <chrono> 20 #include <thread> 21 22 using namespace std::chrono_literals; 23 24 namespace android { 25 namespace hardware { 26 namespace broadcastradio { 27 namespace vts { 28 29 /** 30 * Clears strong pointer and waits until the object gets destroyed. 31 * 32 * @param ptr The pointer to get cleared. 33 * @param timeout Time to wait for other references. 34 */ 35 template <typename T> clearAndWait(sp<T> & ptr,std::chrono::milliseconds timeout)36static void clearAndWait(sp<T>& ptr, std::chrono::milliseconds timeout) { 37 using std::chrono::steady_clock; 38 39 constexpr auto step = 10ms; 40 41 wp<T> wptr = ptr; 42 ptr.clear(); 43 44 auto limit = steady_clock::now() + timeout; 45 while (wptr.promote() != nullptr) { 46 if (steady_clock::now() + step > limit) { 47 FAIL() << "Pointer was not released within timeout"; 48 break; 49 } 50 std::this_thread::sleep_for(step); 51 } 52 } 53 54 } // namespace vts 55 } // namespace broadcastradio 56 } // namespace hardware 57 } // namespace android 58 59 #endif // ANDROID_HARDWARE_BROADCASTRADIO_VTS_POINTER_UTILS 60