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