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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include "rocksdb/cleanable.h"
#include <gtest/gtest.h>
#include <functional>
#include "port/port.h"
#include "port/stack_trace.h"
#include "rocksdb/iostats_context.h"
#include "rocksdb/perf_context.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
namespace ROCKSDB_NAMESPACE {
class CleanableTest : public testing::Test {};
// Use this to keep track of the cleanups that were actually performed
void Multiplier(void* arg1, void* arg2) {
int* res = reinterpret_cast<int*>(arg1);
int* num = reinterpret_cast<int*>(arg2);
*res *= *num;
}
// the first Cleanup is on stack and the rest on heap, so test with both cases
TEST_F(CleanableTest, Register) {
int n2 = 2, n3 = 3;
int res = 1;
{ Cleanable c1; }
// ~Cleanable
ASSERT_EQ(1, res);
res = 1;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
}
// ~Cleanable
ASSERT_EQ(2, res);
res = 1;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
c1.RegisterCleanup(Multiplier, &res, &n3); // res = 2 * 3;
}
// ~Cleanable
ASSERT_EQ(6, res);
// Test the Reset does cleanup
res = 1;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
c1.RegisterCleanup(Multiplier, &res, &n3); // res = 2 * 3;
c1.Reset();
ASSERT_EQ(6, res);
}
// ~Cleanable
ASSERT_EQ(6, res);
// Test Clenable is usable after Reset
res = 1;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
c1.Reset();
ASSERT_EQ(2, res);
c1.RegisterCleanup(Multiplier, &res, &n3); // res = 2 * 3;
}
// ~Cleanable
ASSERT_EQ(6, res);
}
// the first Cleanup is on stack and the rest on heap,
// so test all the combinations of them
TEST_F(CleanableTest, Delegation) {
int n2 = 2, n3 = 3, n5 = 5, n7 = 7;
int res = 1;
{
Cleanable c2;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
c1.DelegateCleanupsTo(&c2);
}
// ~Cleanable
ASSERT_EQ(1, res);
}
// ~Cleanable
ASSERT_EQ(2, res);
res = 1;
{
Cleanable c2;
{
Cleanable c1;
c1.DelegateCleanupsTo(&c2);
}
// ~Cleanable
ASSERT_EQ(1, res);
}
// ~Cleanable
ASSERT_EQ(1, res);
res = 1;
{
Cleanable c2;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
c1.RegisterCleanup(Multiplier, &res, &n3); // res = 2 * 3;
c1.DelegateCleanupsTo(&c2);
}
// ~Cleanable
ASSERT_EQ(1, res);
}
// ~Cleanable
ASSERT_EQ(6, res);
res = 1;
{
Cleanable c2;
c2.RegisterCleanup(Multiplier, &res, &n5); // res = 5;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
c1.RegisterCleanup(Multiplier, &res, &n3); // res = 2 * 3;
c1.DelegateCleanupsTo(&c2); // res = 2 * 3 * 5;
}
// ~Cleanable
ASSERT_EQ(1, res);
}
// ~Cleanable
ASSERT_EQ(30, res);
res = 1;
{
Cleanable c2;
c2.RegisterCleanup(Multiplier, &res, &n5); // res = 5;
c2.RegisterCleanup(Multiplier, &res, &n7); // res = 5 * 7;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
c1.RegisterCleanup(Multiplier, &res, &n3); // res = 2 * 3;
c1.DelegateCleanupsTo(&c2); // res = 2 * 3 * 5 * 7;
}
// ~Cleanable
ASSERT_EQ(1, res);
}
// ~Cleanable
ASSERT_EQ(210, res);
res = 1;
{
Cleanable c2;
c2.RegisterCleanup(Multiplier, &res, &n5); // res = 5;
c2.RegisterCleanup(Multiplier, &res, &n7); // res = 5 * 7;
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
c1.DelegateCleanupsTo(&c2); // res = 2 * 5 * 7;
}
// ~Cleanable
ASSERT_EQ(1, res);
}
// ~Cleanable
ASSERT_EQ(70, res);
res = 1;
{
Cleanable c2;
c2.RegisterCleanup(Multiplier, &res, &n5); // res = 5;
c2.RegisterCleanup(Multiplier, &res, &n7); // res = 5 * 7;
{
Cleanable c1;
c1.DelegateCleanupsTo(&c2); // res = 5 * 7;
}
// ~Cleanable
ASSERT_EQ(1, res);
}
// ~Cleanable
ASSERT_EQ(35, res);
res = 1;
{
Cleanable c2;
c2.RegisterCleanup(Multiplier, &res, &n5); // res = 5;
{
Cleanable c1;
c1.DelegateCleanupsTo(&c2); // res = 5;
}
// ~Cleanable
ASSERT_EQ(1, res);
}
// ~Cleanable
ASSERT_EQ(5, res);
}
static void ReleaseStringHeap(void* s, void*) {
delete reinterpret_cast<const std::string*>(s);
}
class PinnableSlice4Test : public PinnableSlice {
public:
void TestStringIsRegistered(std::string* s) {
ASSERT_TRUE(cleanup_.function == ReleaseStringHeap);
ASSERT_EQ(cleanup_.arg1, s);
ASSERT_EQ(cleanup_.arg2, nullptr);
ASSERT_EQ(cleanup_.next, nullptr);
}
};
// Putting the PinnableSlice tests here due to similarity to Cleanable tests
TEST_F(CleanableTest, PinnableSlice) {
int n2 = 2;
int res = 1;
const std::string const_str = "123";
{
res = 1;
PinnableSlice4Test value;
Slice slice(const_str);
value.PinSlice(slice, Multiplier, &res, &n2);
std::string str;
str.assign(value.data(), value.size());
ASSERT_EQ(const_str, str);
}
// ~Cleanable
ASSERT_EQ(2, res);
{
res = 1;
PinnableSlice4Test value;
Slice slice(const_str);
{
Cleanable c1;
c1.RegisterCleanup(Multiplier, &res, &n2); // res = 2;
value.PinSlice(slice, &c1);
}
// ~Cleanable
ASSERT_EQ(1, res); // cleanups must have be delegated to value
std::string str;
str.assign(value.data(), value.size());
ASSERT_EQ(const_str, str);
}
// ~Cleanable
ASSERT_EQ(2, res);
{
PinnableSlice4Test value;
Slice slice(const_str);
value.PinSelf(slice);
std::string str;
str.assign(value.data(), value.size());
ASSERT_EQ(const_str, str);
}
{
PinnableSlice4Test value;
std::string* self_str_ptr = value.GetSelf();
self_str_ptr->assign(const_str);
value.PinSelf();
std::string str;
str.assign(value.data(), value.size());
ASSERT_EQ(const_str, str);
}
}
static void Decrement(void* intptr, void*) { --*static_cast<int*>(intptr); }
// Allow unit testing moved-from data
template <class T>
void MarkInitializedForClangAnalyze(T& t) {
// No net effect, but confuse analyzer. (Published advice doesn't work.)
char* p = reinterpret_cast<char*>(&t);
std::swap(*p, *p);
}
TEST_F(CleanableTest, SharedWrapCleanables) {
int val = 5;
Cleanable c1, c2;
c1.RegisterCleanup(&Decrement, &val, nullptr);
c1.RegisterCleanup(&Decrement, &val, nullptr);
ASSERT_TRUE(c1.HasCleanups());
ASSERT_FALSE(c2.HasCleanups());
SharedCleanablePtr scp1;
ASSERT_EQ(scp1.get(), nullptr);
// No-ops
scp1.RegisterCopyWith(&c2);
scp1.MoveAsCleanupTo(&c2);
ASSERT_FALSE(c2.HasCleanups());
c2.RegisterCleanup(&Decrement, &val, nullptr);
c2.RegisterCleanup(&Decrement, &val, nullptr);
c2.RegisterCleanup(&Decrement, &val, nullptr);
scp1.Allocate();
ASSERT_NE(scp1.get(), nullptr);
ASSERT_FALSE(scp1->HasCleanups());
// Copy ctor (alias scp2 = scp1)
SharedCleanablePtr scp2{scp1};
ASSERT_EQ(scp1.get(), scp2.get());
c1.DelegateCleanupsTo(&*scp1);
ASSERT_TRUE(scp1->HasCleanups());
ASSERT_TRUE(scp2->HasCleanups());
ASSERT_FALSE(c1.HasCleanups());
SharedCleanablePtr scp3;
ASSERT_EQ(scp3.get(), nullptr);
// Copy operator (alias scp3 = scp2 = scp1)
scp3 = scp2;
// Make scp2 point elsewhere
scp2.Allocate();
c2.DelegateCleanupsTo(&*scp2);
ASSERT_EQ(val, 5);
// Move operator, invoke old c2 cleanups
scp2 = std::move(scp1);
ASSERT_EQ(val, 2);
MarkInitializedForClangAnalyze(scp1);
ASSERT_EQ(scp1.get(), nullptr);
// Move ctor
{
SharedCleanablePtr scp4{std::move(scp3)};
MarkInitializedForClangAnalyze(scp3);
ASSERT_EQ(scp3.get(), nullptr);
ASSERT_EQ(scp4.get(), scp2.get());
scp2.Reset();
ASSERT_EQ(val, 2);
// invoke old c1 cleanups
}
ASSERT_EQ(val, 0);
}
TEST_F(CleanableTest, CleanableWrapShared) {
int val = 5;
SharedCleanablePtr scp1, scp2;
scp1.Allocate();
scp1->RegisterCleanup(&Decrement, &val, nullptr);
scp1->RegisterCleanup(&Decrement, &val, nullptr);
scp2.Allocate();
scp2->RegisterCleanup(&Decrement, &val, nullptr);
scp2->RegisterCleanup(&Decrement, &val, nullptr);
scp2->RegisterCleanup(&Decrement, &val, nullptr);
{
Cleanable c1;
{
Cleanable c2, c3;
scp1.RegisterCopyWith(&c1);
scp1.MoveAsCleanupTo(&c2);
ASSERT_TRUE(c1.HasCleanups());
ASSERT_TRUE(c2.HasCleanups());
ASSERT_EQ(scp1.get(), nullptr);
scp2.MoveAsCleanupTo(&c3);
ASSERT_TRUE(c3.HasCleanups());
ASSERT_EQ(scp2.get(), nullptr);
c2.Reset();
ASSERT_FALSE(c2.HasCleanups());
ASSERT_EQ(val, 5);
// invoke cleanups from scp2
}
ASSERT_EQ(val, 2);
// invoke cleanups from scp1
}
ASSERT_EQ(val, 0);
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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