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android13/system/tools/hidl/test/lazy_test/hidl_lazy_test.cpp

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/*
* Copyright (C) 2019, 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.
*/
#include <cstdlib>
#include <ctime>
#include <iostream>
#include <numeric>
#include <string>
#include <thread>
#include <sys/epoll.h>
#include <sys/eventfd.h>
#include <unistd.h>
#include <android-base/properties.h>
#include <android-base/unique_fd.h>
#include <android/hardware/tests/lazy/1.1/ILazy.h>
#include <android/hardware/tests/lazy_cb/1.0/ILazyCb.h>
#include <android/hidl/manager/1.2/IServiceManager.h>
#include <cutils/native_handle.h>
#include <gtest/gtest.h>
#include <hidl-util/FqInstance.h>
#include <hidl/HidlSupport.h>
#include <hidl/HidlTransportSupport.h>
#include <hidl/HidlTransportUtils.h>
#include <hwbinder/IPCThreadState.h>
using ::android::FqInstance;
using ::android::sp;
using ::android::base::unique_fd;
using ::android::hardware::hidl_handle;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using ::android::hardware::IPCThreadState;
using ::android::hardware::Return;
using ::android::hardware::tests::lazy::V1_1::ILazy;
using ::android::hardware::tests::lazy_cb::V1_0::ILazyCb;
using ::android::hidl::base::V1_0::IBase;
using ::android::hidl::manager::V1_2::IServiceManager;
static std::vector<FqInstance> gInstances;
sp<IBase> getHal(const FqInstance& instance) {
return ::android::hardware::details::getRawServiceInternal(instance.getFqName().string(),
instance.getInstance(),
true /*retry*/, false /*getStub*/);
}
class HidlLazyTestBase : public ::testing::Test {
protected:
static constexpr size_t SHUTDOWN_WAIT_TIME = 10;
sp<IServiceManager> manager;
void SetUp() override {
manager = IServiceManager::getService();
ASSERT_NE(manager, nullptr);
}
bool isServiceRunning(const FqInstance& instance) {
bool isRunning = false;
EXPECT_TRUE(manager->listByInterface(instance.getFqName().string(),
[&](const hidl_vec<hidl_string>& instanceNames) {
for (const hidl_string& name : instanceNames) {
if (name == instance.getInstance()) {
isRunning = true;
break;
}
}
})
.isOk());
return isRunning;
}
};
class HidlLazyTest : public HidlLazyTestBase {
protected:
void SetUp() override {
HidlLazyTestBase::SetUp();
for (const auto& instance : gInstances) {
ASSERT_FALSE(isServiceRunning(instance))
<< "Service '" << instance.string()
<< "' is already running. Please ensure this "
<< "service is implemented as a lazy HAL, then kill all "
<< "clients of this service and try again.";
}
}
void TearDown() override {
std::cout << "Waiting " << SHUTDOWN_WAIT_TIME << " seconds before checking that the "
<< "service has shut down." << std::endl;
IPCThreadState::self()->flushCommands();
int timeout_multiplier = android::base::GetIntProperty("ro.hw_timeout_multiplier", 1);
sleep(SHUTDOWN_WAIT_TIME * timeout_multiplier);
for (const auto& instance : gInstances) {
ASSERT_FALSE(isServiceRunning(instance))
<< "Service failed to shutdown " << instance.string();
}
}
};
class HidlLazyCbTest : public HidlLazyTestBase {
protected:
static constexpr size_t CALLBACK_SHUTDOWN_WAIT_TIME = 5;
};
static constexpr size_t NUM_IMMEDIATE_GET_UNGETS = 100;
TEST_F(HidlLazyTest, GetUnget) {
for (size_t i = 0; i < NUM_IMMEDIATE_GET_UNGETS; i++) {
IPCThreadState::self()->flushCommands();
for (const auto& instance : gInstances) {
sp<IBase> hal = getHal(instance);
ASSERT_NE(hal.get(), nullptr);
EXPECT_TRUE(hal->ping().isOk());
}
}
}
static std::vector<size_t> waitTimes(size_t numTimes, size_t maxWait) {
std::vector<size_t> times(numTimes);
for (size_t i = 0; i < numTimes; i++) {
times[i] = (size_t)(rand() % (maxWait + 1));
}
return times;
}
static void testWithTimes(const std::vector<size_t>& waitTimes, const FqInstance& instance) {
std::cout << "Note runtime expected from sleeps: "
<< std::accumulate(waitTimes.begin(), waitTimes.end(), 0) << " second(s)."
<< std::endl;
for (size_t sleepTime : waitTimes) {
IPCThreadState::self()->flushCommands();
std::cout << "Thread for " << instance.string() << " waiting " << sleepTime
<< " while not holding HAL." << std::endl;
int timeout_multiplier = android::base::GetIntProperty("ro.hw_timeout_multiplier", 1);
sleep(sleepTime * timeout_multiplier);
sp<IBase> hal = getHal(instance);
ASSERT_NE(hal.get(), nullptr);
ASSERT_TRUE(hal->ping().isOk());
}
}
static constexpr size_t NUM_TIMES_GET_UNGET = 5;
static constexpr size_t MAX_WAITING_DURATION = 10;
static constexpr size_t NUM_CONCURRENT_THREADS = 5;
TEST_F(HidlLazyTest, GetWithWaitConcurrent) {
std::vector<std::vector<size_t>> threadWaitTimes(NUM_CONCURRENT_THREADS);
for (size_t i = 0; i < threadWaitTimes.size(); i++) {
threadWaitTimes[i] = waitTimes(NUM_TIMES_GET_UNGET, MAX_WAITING_DURATION);
}
std::vector<std::thread> threads(NUM_CONCURRENT_THREADS);
for (size_t i = 0; i < threads.size(); i++) {
const FqInstance& instance = gInstances[i % gInstances.size()];
threads[i] = std::thread(testWithTimes, threadWaitTimes[i], instance);
}
for (auto& thread : threads) {
thread.join();
}
}
TEST_F(HidlLazyCbTest, ActiveServicesCallbackTest) {
const std::string fqInstanceName = "android.hardware.tests.lazy_cb@1.0::ILazyCb/default";
FqInstance fqInstance;
ASSERT_TRUE(fqInstance.setTo(fqInstanceName));
ASSERT_FALSE(isServiceRunning(fqInstance)) << "Lazy service already running.";
sp<IBase> hal = getHal(fqInstance);
ASSERT_NE(hal, nullptr);
sp<ILazyCb> lazyCb = ILazyCb::castFrom(hal);
ASSERT_NE(lazyCb, nullptr);
hal = nullptr;
int efd = eventfd(0, 0);
ASSERT_GE(efd, 0) << "Failed to create eventfd";
unique_fd uniqueEventFd(efd);
native_handle_t* h = native_handle_create(/* numFds */ 1, /* numInts */ 0);
h->data[0] = efd;
hidl_handle handle(h);
Return<bool> setEventFdRet = lazyCb->setEventFd(handle);
native_handle_delete(h);
ASSERT_TRUE(setEventFdRet.isOk());
ASSERT_TRUE(setEventFdRet);
lazyCb = nullptr;
IPCThreadState::self()->flushCommands();
std::cout << "Waiting " << SHUTDOWN_WAIT_TIME << " seconds for callback completion "
<< "notification." << std::endl;
int epollFd = epoll_create1(EPOLL_CLOEXEC);
ASSERT_GE(epollFd, 0) << "Failed to create epoll";
unique_fd epollUniqueFd(epollFd);
const int EPOLL_MAX_EVENTS = 1;
struct epoll_event event, events[EPOLL_MAX_EVENTS];
event.events = EPOLLIN;
event.data.fd = efd;
int rc = epoll_ctl(epollFd, EPOLL_CTL_ADD, efd, &event);
ASSERT_GE(rc, 0) << "Failed to add fd to epoll";
rc = TEMP_FAILURE_RETRY(
epoll_wait(epollFd, events, EPOLL_MAX_EVENTS, SHUTDOWN_WAIT_TIME * 1000));
ASSERT_NE(rc, 0) << "Service shutdown timeout";
ASSERT_GT(rc, 0) << "Error waiting for service shutdown notification";
eventfd_t counter;
rc = TEMP_FAILURE_RETRY(eventfd_read(uniqueEventFd.get(), &counter));
ASSERT_GE(rc, 0) << "Failed to get callback completion notification from service";
ASSERT_EQ(counter, 1);
std::cout << "Waiting " << CALLBACK_SHUTDOWN_WAIT_TIME
<< " seconds before checking whether the "
<< "service is still running." << std::endl;
int timeout_multiplier = android::base::GetIntProperty("ro.hw_timeout_multiplier", 1);
sleep(CALLBACK_SHUTDOWN_WAIT_TIME * timeout_multiplier);
ASSERT_FALSE(isServiceRunning(fqInstance)) << "Service failed to shut down.";
}
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
srand(time(nullptr));
std::vector<std::string> fqInstances;
if (argc == 1) {
fqInstances.push_back("android.hardware.tests.lazy@1.0::ILazy/default1");
fqInstances.push_back("android.hardware.tests.lazy@1.0::ILazy/default2");
} else {
for (size_t arg = 1; arg < argc; arg++) {
fqInstances.push_back(argv[arg]);
}
}
for (const std::string& instance : fqInstances) {
FqInstance fqInstance;
if (!fqInstance.setTo(instance)) {
std::cerr << "Invalid fqinstance: " << instance << std::endl;
return 1;
}
gInstances.push_back(fqInstance);
}
return RUN_ALL_TESTS();
}
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