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/*
* Copyright (C) 2017 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 <gtest/gtest.h>
#include "thread/ThreadBase.h"
#include "utils/TimeUtils.h"
#include <chrono>
#include "unistd.h"
using namespace android;
using namespace android::uirenderer;
static ThreadBase& thread() {
class TestThread : public ThreadBase, public virtual RefBase {};
static sp<TestThread> thread = []() -> auto {
sp<TestThread> ret{new TestThread};
ret->start("TestThread");
return ret;
}
();
return *thread;
}
static WorkQueue& queue() {
return thread().queue();
}
TEST(ThreadBase, post) {
std::atomic_bool ran(false);
queue().post([&ran]() { ran = true; });
for (int i = 0; !ran && i < 1000; i++) {
usleep(1);
}
ASSERT_TRUE(ran) << "Failed to flip atomic after 1 second";
}
TEST(ThreadBase, postDelay) {
using clock = WorkQueue::clock;
std::promise<nsecs_t> ranAtPromise;
auto queuedAt = clock::now();
queue().postDelayed(100_us, [&]() { ranAtPromise.set_value(clock::now()); });
auto ranAt = ranAtPromise.get_future().get();
auto ranAfter = ranAt - queuedAt;
ASSERT_TRUE(ranAfter > 90_us) << "Ran after " << ns2us(ranAfter) << "us <= 90us";
}
TEST(ThreadBase, runSync) {
pid_t thisTid = gettid();
pid_t otherTid = thisTid;
auto result = queue().runSync([&otherTid]() -> auto {
otherTid = gettid();
return 42;
});
ASSERT_EQ(42, result);
ASSERT_NE(thisTid, otherTid);
}
TEST(ThreadBase, async) {
pid_t thisTid = gettid();
pid_t thisPid = getpid();
auto otherTid = queue().async([]() -> auto { return gettid(); });
auto otherPid = queue().async([]() -> auto { return getpid(); });
auto result = queue().async([]() -> auto { return 42; });
ASSERT_NE(thisTid, otherTid.get());
ASSERT_EQ(thisPid, otherPid.get());
ASSERT_EQ(42, result.get());
}
TEST(ThreadBase, lifecyclePerf) {
struct EventCount {
std::atomic_int construct{0};
std::atomic_int destruct{0};
std::atomic_int copy{0};
std::atomic_int move{0};
};
struct Counter {
explicit Counter(EventCount* count) : mCount(count) { mCount->construct++; }
Counter(const Counter& other) : mCount(other.mCount) {
if (mCount) mCount->copy++;
}
Counter(Counter&& other) : mCount(other.mCount) {
other.mCount = nullptr;
if (mCount) mCount->move++;
}
Counter& operator=(const Counter& other) {
mCount = other.mCount;
if (mCount) mCount->copy++;
return *this;
}
Counter& operator=(Counter&& other) {
mCount = other.mCount;
other.mCount = nullptr;
if (mCount) mCount->move++;
return *this;
}
~Counter() {
if (mCount) mCount->destruct++;
}
EventCount* mCount;
};
EventCount count;
{
Counter counter{&count};
queue().runSync([c = std::move(counter)](){});
}
ASSERT_EQ(1, count.construct.load());
ASSERT_EQ(1, count.destruct.load());
ASSERT_EQ(0, count.copy.load());
ASSERT_LE(1, count.move.load());
}
int lifecycleTestHelper(const sp<VirtualLightRefBase>& test) {
return queue().runSync([t = test]()->int { return t->getStrongCount(); });
}
TEST(ThreadBase, lifecycle) {
sp<VirtualLightRefBase> dummyObject{new VirtualLightRefBase};
ASSERT_EQ(1, dummyObject->getStrongCount());
ASSERT_EQ(2, queue().runSync([dummyObject]() -> int { return dummyObject->getStrongCount(); }));
ASSERT_EQ(1, dummyObject->getStrongCount());
ASSERT_EQ(2, lifecycleTestHelper(dummyObject));
ASSERT_EQ(1, dummyObject->getStrongCount());
}
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