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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Stand-alone tests for the ioctls in the vsoc driver.
*/
#include "uapi/vsoc_shm.h"
#include <atomic>
#include <stdint.h>
#include "common/vsoc/lib/e2e_test_region_view.h"
#include "guest/vsoc/lib/manager_region_view.h"
#include <android-base/logging.h>
#include <gtest/gtest.h>
void BasicWaitForSignal(vsoc::E2EPrimaryRegionView* region,
uint32_t expected_start,
uint32_t expected_finish) {
ASSERT_EQ(expected_start, region->read_guest_self_register());
int rval = region->wait_guest_self_register(expected_start);
EXPECT_LE(0, rval);
EXPECT_GT(5, rval);
EXPECT_EQ(expected_finish, region->read_guest_self_register());
}
TEST(FutexTest, BasicFutexTests) {
constexpr uint32_t INITIAL_SIGNAL = 0;
constexpr uint32_t SILENT_UPDATE_SIGNAL = 1;
constexpr uint32_t WAKE_SIGNAL = 2;
auto region = vsoc::E2EPrimaryRegionView::GetInstance();
ASSERT_TRUE(region != NULL);
LOG(INFO) << "Regions are open";
region->write_guest_self_register(INITIAL_SIGNAL);
std::thread waiter(BasicWaitForSignal, region, INITIAL_SIGNAL, WAKE_SIGNAL);
sleep(1);
LOG(INFO) << "Still waiting. Trying to wake wrong address";
region->signal_guest_to_host_register();
sleep(1);
LOG(INFO) << "Still waiting. Trying to wake without update";
region->signal_guest_self_register();
sleep(1);
LOG(INFO) << "Still waiting. Trying to wake without signal";
region->write_guest_self_register(SILENT_UPDATE_SIGNAL);
sleep(1);
LOG(INFO) << "Still waiting. Trying to wake with signal";
region->write_guest_self_register(WAKE_SIGNAL);
region->signal_guest_self_register();
waiter.join();
LOG(INFO) << "Wake worked";
LOG(INFO) << "PASS: BasicPeerTests";
}
int main(int argc, char* argv[]) {
android::base::InitLogging(argv);
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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