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#include "pool.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/stream/output.h>
#include <util/random/fast.h>
#include <util/system/spinlock.h>
#include <util/system/thread.h>
#include <util/system/mutex.h>
#include <util/system/condvar.h>
struct TThreadPoolTest {
TSpinLock Lock;
long R = -1;
struct TTask: public IObjectInQueue {
TThreadPoolTest* Test = nullptr;
long Value = 0;
TTask(TThreadPoolTest* test, int value)
: Test(test)
, Value(value)
{
}
void Process(void*) override {
THolder<TTask> This(this);
TGuard<TSpinLock> guard(Test->Lock);
Test->R ^= Value;
}
};
struct TOwnedTask: public IObjectInQueue {
bool& Processed;
bool& Destructed;
TOwnedTask(bool& processed, bool& destructed)
: Processed(processed)
, Destructed(destructed)
{
}
~TOwnedTask() override {
Destructed = true;
}
void Process(void*) override {
Processed = true;
}
};
inline void TestAnyQueue(IThreadPool* queue, size_t queueSize = 1000) {
TReallyFastRng32 rand(17);
const size_t cnt = 1000;
R = 0;
for (size_t i = 0; i < cnt; ++i) {
R ^= (long)rand.GenRand();
}
queue->Start(10, queueSize);
rand = TReallyFastRng32(17);
for (size_t i = 0; i < cnt; ++i) {
UNIT_ASSERT(queue->Add(new TTask(this, (long)rand.GenRand())));
}
queue->Stop();
UNIT_ASSERT_EQUAL(0, R);
}
};
class TFailAddQueue: public IThreadPool {
public:
bool Add(IObjectInQueue* /*obj*/) override Y_WARN_UNUSED_RESULT {
return false;
}
void Start(size_t, size_t) override {
}
void Stop() noexcept override {
}
size_t Size() const noexcept override {
return 0;
}
};
Y_UNIT_TEST_SUITE(TThreadPoolTest) {
Y_UNIT_TEST(TestTThreadPool) {
TThreadPoolTest t;
TThreadPool q;
t.TestAnyQueue(&q);
}
Y_UNIT_TEST(TestTThreadPoolBlocking) {
TThreadPoolTest t;
TThreadPool q(TThreadPool::TParams().SetBlocking(true));
t.TestAnyQueue(&q, 100);
}
// disabled by pg@ long time ago due to test flaps
// Tried to enable: REVIEW:78772
Y_UNIT_TEST(TestTAdaptiveThreadPool) {
if (false) {
TThreadPoolTest t;
TAdaptiveThreadPool q;
t.TestAnyQueue(&q);
}
}
Y_UNIT_TEST(TestAddAndOwn) {
TThreadPool q;
q.Start(2);
bool processed = false;
bool destructed = false;
q.SafeAddAndOwn(MakeHolder<TThreadPoolTest::TOwnedTask>(processed, destructed));
q.Stop();
UNIT_ASSERT_C(processed, "Not processed");
UNIT_ASSERT_C(destructed, "Not destructed");
}
Y_UNIT_TEST(TestAddFunc) {
TFailAddQueue queue;
bool added = queue.AddFunc(
[]() {} // Lambda, I call him 'Lambda'!
);
UNIT_ASSERT_VALUES_EQUAL(added, false);
}
Y_UNIT_TEST(TestSafeAddFuncThrows) {
TFailAddQueue queue;
UNIT_CHECK_GENERATED_EXCEPTION(queue.SafeAddFunc([] {}), TThreadPoolException);
}
Y_UNIT_TEST(TestFunctionNotCopied) {
struct TFailOnCopy {
TFailOnCopy() {
}
TFailOnCopy(TFailOnCopy&&) {
}
TFailOnCopy(const TFailOnCopy&) {
UNIT_FAIL("Don't copy std::function inside TThreadPool");
}
};
TThreadPool queue(TThreadPool::TParams().SetBlocking(false).SetCatching(true));
queue.Start(2);
queue.SafeAddFunc([data = TFailOnCopy()]() {});
queue.Stop();
}
Y_UNIT_TEST(TestInfoGetters) {
TThreadPool queue;
queue.Start(2, 7);
UNIT_ASSERT_EQUAL(queue.GetThreadCountExpected(), 2);
UNIT_ASSERT_EQUAL(queue.GetThreadCountReal(), 2);
UNIT_ASSERT_EQUAL(queue.GetMaxQueueSize(), 7);
queue.Stop();
queue.Start(4, 1);
UNIT_ASSERT_EQUAL(queue.GetThreadCountExpected(), 4);
UNIT_ASSERT_EQUAL(queue.GetThreadCountReal(), 4);
UNIT_ASSERT_EQUAL(queue.GetMaxQueueSize(), 1);
queue.Stop();
}
void TestFixedThreadName(IThreadPool& pool, const TString& expectedName) {
pool.Start(1);
TString name;
pool.SafeAddFunc([&name]() {
name = TThread::CurrentThreadName();
});
pool.Stop();
if (TThread::CanGetCurrentThreadName()) {
UNIT_ASSERT_EQUAL(name, expectedName);
UNIT_ASSERT_UNEQUAL(TThread::CurrentThreadName(), expectedName);
}
}
Y_UNIT_TEST(TestFixedThreadName) {
const TString expectedName = "HelloWorld";
{
TThreadPool pool(TThreadPool::TParams().SetBlocking(true).SetCatching(false).SetThreadName(expectedName));
TestFixedThreadName(pool, expectedName);
}
{
TAdaptiveThreadPool pool(TThreadPool::TParams().SetThreadName(expectedName));
TestFixedThreadName(pool, expectedName);
}
}
void TestEnumeratedThreadName(IThreadPool& pool, const THashSet<TString>& expectedNames) {
pool.Start(expectedNames.size());
TMutex lock;
TCondVar allReady;
size_t readyCount = 0;
THashSet<TString> names;
for (size_t i = 0; i < expectedNames.size(); ++i) {
pool.SafeAddFunc([&]() {
with_lock (lock) {
if (++readyCount == expectedNames.size()) {
allReady.BroadCast();
} else {
while (readyCount != expectedNames.size()) {
allReady.WaitI(lock);
}
}
names.insert(TThread::CurrentThreadName());
}
});
}
pool.Stop();
if (TThread::CanGetCurrentThreadName()) {
UNIT_ASSERT_EQUAL(names, expectedNames);
}
}
Y_UNIT_TEST(TestEnumeratedThreadName) {
const TString namePrefix = "HelloWorld";
const THashSet<TString> expectedNames = {
"HelloWorld0",
"HelloWorld1",
"HelloWorld2",
"HelloWorld3",
"HelloWorld4",
"HelloWorld5",
"HelloWorld6",
"HelloWorld7",
"HelloWorld8",
"HelloWorld9",
"HelloWorld10",
};
{
TThreadPool pool(TThreadPool::TParams().SetBlocking(true).SetCatching(false).SetThreadNamePrefix(namePrefix));
TestEnumeratedThreadName(pool, expectedNames);
}
{
TAdaptiveThreadPool pool(TThreadPool::TParams().SetThreadNamePrefix(namePrefix));
TestEnumeratedThreadName(pool, expectedNames);
}
}
}
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