1 /* 2 * Copyright (C) 2018 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 /* 18 * Stand-alone tests for the ioctls in the vsoc driver. 19 */ 20 21 #include "uapi/vsoc_shm.h" 22 #include <atomic> 23 #include <stdint.h> 24 #include "common/vsoc/lib/e2e_test_region_view.h" 25 #include "guest/vsoc/lib/manager_region_view.h" 26 27 #include <android-base/logging.h> 28 #include <gtest/gtest.h> 29 30 void BasicWaitForSignal(vsoc::E2EPrimaryRegionView* region, 31 uint32_t expected_start, 32 uint32_t expected_finish) { 33 ASSERT_EQ(expected_start, region->read_guest_self_register()); 34 int rval = region->wait_guest_self_register(expected_start); 35 EXPECT_LE(0, rval); 36 EXPECT_GT(5, rval); 37 EXPECT_EQ(expected_finish, region->read_guest_self_register()); 38 } 39 40 TEST(FutexTest, BasicFutexTests) { 41 constexpr uint32_t INITIAL_SIGNAL = 0; 42 constexpr uint32_t SILENT_UPDATE_SIGNAL = 1; 43 constexpr uint32_t WAKE_SIGNAL = 2; 44 auto region = vsoc::E2EPrimaryRegionView::GetInstance(); 45 ASSERT_TRUE(region != NULL); 46 LOG(INFO) << "Regions are open"; 47 region->write_guest_self_register(INITIAL_SIGNAL); 48 std::thread waiter(BasicWaitForSignal, region, INITIAL_SIGNAL, WAKE_SIGNAL); 49 sleep(1); 50 LOG(INFO) << "Still waiting. Trying to wake wrong address"; 51 region->signal_guest_to_host_register(); 52 sleep(1); 53 LOG(INFO) << "Still waiting. Trying to wake without update"; 54 region->signal_guest_self_register(); 55 sleep(1); 56 LOG(INFO) << "Still waiting. Trying to wake without signal"; 57 region->write_guest_self_register(SILENT_UPDATE_SIGNAL); 58 sleep(1); 59 LOG(INFO) << "Still waiting. Trying to wake with signal"; 60 region->write_guest_self_register(WAKE_SIGNAL); 61 region->signal_guest_self_register(); 62 waiter.join(); 63 LOG(INFO) << "Wake worked"; 64 LOG(INFO) << "PASS: BasicPeerTests"; 65 } 66 67 int main(int argc, char* argv[]) { 68 android::base::InitLogging(argv); 69 testing::InitGoogleTest(&argc, argv); 70 return RUN_ALL_TESTS(); 71 } 72
