blob: 3be228f7fceec51633c984f86465d896b55bc588 [file] [log] [blame]
/*
* Copyright (C) 2017-2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "RefLogger.h"
#include <mutex>
#include <wtf/Poisoned.h>
#include <wtf/RefPtr.h>
namespace TestWebKitAPI {
namespace {
uintptr_t g_poisonA;
uintptr_t g_poisonB;
uintptr_t g_poisonC;
uintptr_t g_poisonD;
uintptr_t g_poisonE;
uintptr_t g_poisonF;
using PoisonA = Poison<g_poisonA>;
using PoisonB = Poison<g_poisonB>;
using PoisonC = Poison<g_poisonC>;
using PoisonD = Poison<g_poisonD>;
using PoisonE = Poison<g_poisonE>;
using PoisonF = Poison<g_poisonF>;
static void initializePoisons()
{
static std::once_flag initializeOnceFlag;
std::call_once(initializeOnceFlag, [] {
g_poisonA = makePoison();
g_poisonB = makePoison();
g_poisonC = makePoison();
g_poisonD = makePoison();
g_poisonF = makePoison();
g_poisonF = makePoison();
});
}
} // namespace anonymous
TEST(WTF_PoisonedRef, Basic)
{
initializePoisons();
DerivedRefLogger a("a");
{
PoisonedRef<PoisonA, RefLogger> ref(a);
EXPECT_EQ(&a, ref.ptr());
EXPECT_EQ(&a.name, &ref->name);
#if ENABLE(POISON)
uintptr_t ptrBits;
std::memcpy(&ptrBits, &ref, sizeof(ptrBits));
ASSERT_TRUE(ptrBits != bitwise_cast<uintptr_t>(&a));
ASSERT_EQ(ptrBits, (Poisoned<PoisonA, RefLogger*>(&a).bits()));
#if ENABLE(POISON_ASSERTS)
ASSERT_TRUE((Poisoned<PoisonA, RefLogger*>::isPoisoned(ptrBits)));
#endif
#endif // ENABLE(POISON)
}
EXPECT_STREQ("ref(a) deref(a) ", takeLogStr().c_str());
{
PoisonedRef<PoisonB, RefLogger> ref(adoptRef(a));
EXPECT_EQ(&a, ref.ptr());
EXPECT_EQ(&a.name, &ref->name);
}
EXPECT_STREQ("deref(a) ", takeLogStr().c_str());
}
TEST(WTF_PoisonedRef, Assignment)
{
initializePoisons();
DerivedRefLogger a("a");
RefLogger b("b");
DerivedRefLogger c("c");
{
PoisonedRef<PoisonC, RefLogger> ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
ref = b;
EXPECT_EQ(&b, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | ref(b) deref(a) | deref(b) ", takeLogStr().c_str());
{
PoisonedRef<PoisonD, RefLogger> ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
ref = c;
EXPECT_EQ(&c, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | ref(c) deref(a) | deref(c) ", takeLogStr().c_str());
{
PoisonedRef<PoisonE, RefLogger> ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
ref = adoptRef(b);
EXPECT_EQ(&b, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | deref(a) | deref(b) ", takeLogStr().c_str());
{
PoisonedRef<PoisonF, RefLogger> ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
ref = adoptRef(c);
EXPECT_EQ(&c, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | deref(a) | deref(c) ", takeLogStr().c_str());
}
static PoisonedRef<PoisonB, RefLogger> passWithRef(PoisonedRef<PoisonC, RefLogger>&& reference)
{
return WTFMove(reference);
}
TEST(WTF_PoisonedRef, ReturnValue)
{
initializePoisons();
DerivedRefLogger a("a");
RefLogger b("b");
DerivedRefLogger c("c");
{
PoisonedRef<PoisonB, RefLogger> ref(passWithRef(PoisonedRef<PoisonC, RefLogger>(a)));
EXPECT_EQ(&a, ref.ptr());
}
EXPECT_STREQ("ref(a) deref(a) ", takeLogStr().c_str());
{
PoisonedRef<PoisonD, RefLogger> ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
ref = passWithRef(b);
EXPECT_EQ(&b, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | ref(b) deref(a) | deref(b) ", takeLogStr().c_str());
{
PoisonedRefPtr<PoisonE, RefLogger> ptr(passWithRef(a));
EXPECT_EQ(&a, ptr.get());
}
EXPECT_STREQ("ref(a) deref(a) ", takeLogStr().c_str());
{
PoisonedRefPtr<PoisonF, DerivedRefLogger> ptr(&a);
PoisonedRefPtr<PoisonA, RefLogger> ptr2(WTFMove(ptr));
EXPECT_EQ(nullptr, ptr.get());
EXPECT_EQ(&a, ptr2.get());
}
EXPECT_STREQ("ref(a) deref(a) ", takeLogStr().c_str());
{
PoisonedRef<PoisonB, DerivedRefLogger> derivedReference(a);
PoisonedRef<PoisonC, RefLogger> baseReference(passWithRef(derivedReference.copyRef()));
EXPECT_EQ(&a, derivedReference.ptr());
EXPECT_EQ(&a, baseReference.ptr());
}
EXPECT_STREQ("ref(a) ref(a) deref(a) deref(a) ", takeLogStr().c_str());
}
TEST(WTF_PoisonedRef, Swap)
{
initializePoisons();
RefLogger a("a");
RefLogger b("b");
{
PoisonedRef<PoisonD, RefLogger> p1(a);
PoisonedRef<PoisonE, RefLogger> p2(b);
log() << "| ";
EXPECT_EQ(&a, p1.ptr());
EXPECT_EQ(&b, p2.ptr());
p1.swap(p2);
EXPECT_EQ(&b, p1.ptr());
EXPECT_EQ(&a, p2.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) ref(b) | | deref(a) deref(b) ", takeLogStr().c_str());
{
PoisonedRef<PoisonF, RefLogger> p1(a);
PoisonedRef<PoisonA, RefLogger> p2(b);
log() << "| ";
EXPECT_EQ(&a, p1.ptr());
EXPECT_EQ(&b, p2.ptr());
swap(p1, p2);
EXPECT_EQ(&b, p1.ptr());
EXPECT_EQ(&a, p2.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) ref(b) | | deref(a) deref(b) ", takeLogStr().c_str());
{
PoisonedRef<PoisonF, RefLogger> p1(a);
Ref<RefLogger> p2(b);
log() << "| ";
EXPECT_EQ(&a, p1.ptr());
EXPECT_EQ(&b, p2.ptr());
swap(p1, p2);
EXPECT_EQ(&b, p1.ptr());
EXPECT_EQ(&a, p2.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) ref(b) | | deref(a) deref(b) ", takeLogStr().c_str());
{
PoisonedRef<PoisonF, RefLogger> p1(a);
Ref<RefLogger> p2(b);
log() << "| ";
EXPECT_EQ(&a, p1.ptr());
EXPECT_EQ(&b, p2.ptr());
p1.swap(p2);
EXPECT_EQ(&b, p1.ptr());
EXPECT_EQ(&a, p2.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) ref(b) | | deref(a) deref(b) ", takeLogStr().c_str());
}
struct PoisonedRefCheckingRefLogger : RefLogger {
using Ref = PoisonedRef<PoisonB, PoisonedRefCheckingRefLogger>;
PoisonedRefCheckingRefLogger(const char* name);
void ref();
void deref();
const Ref* slotToCheck { nullptr };
};
struct DerivedPoisonedRefCheckingRefLogger : PoisonedRefCheckingRefLogger {
DerivedPoisonedRefCheckingRefLogger(const char* name);
};
PoisonedRefCheckingRefLogger::PoisonedRefCheckingRefLogger(const char* name)
: RefLogger { name }
{
}
void PoisonedRefCheckingRefLogger::ref()
{
if (slotToCheck)
log() << "slot=" << slotToCheck->get().name << " ";
RefLogger::ref();
}
void PoisonedRefCheckingRefLogger::deref()
{
if (slotToCheck)
log() << "slot=" << slotToCheck->get().name << " ";
RefLogger::deref();
}
DerivedPoisonedRefCheckingRefLogger::DerivedPoisonedRefCheckingRefLogger(const char* name)
: PoisonedRefCheckingRefLogger { name }
{
}
TEST(WTF_PoisonedRef, AssignBeforeDeref)
{
initializePoisons();
DerivedPoisonedRefCheckingRefLogger a("a");
PoisonedRefCheckingRefLogger b("b");
DerivedPoisonedRefCheckingRefLogger c("c");
{
PoisonedRefCheckingRefLogger::Ref ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
a.slotToCheck = &ref;
b.slotToCheck = &ref;
ref = b;
a.slotToCheck = nullptr;
b.slotToCheck = nullptr;
EXPECT_EQ(&b, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | slot=a ref(b) slot=b deref(a) | deref(b) ", takeLogStr().c_str());
{
PoisonedRefCheckingRefLogger::Ref ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
a.slotToCheck = &ref;
c.slotToCheck = &ref;
ref = c;
a.slotToCheck = nullptr;
c.slotToCheck = nullptr;
EXPECT_EQ(&c, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | slot=a ref(c) slot=c deref(a) | deref(c) ", takeLogStr().c_str());
{
PoisonedRefCheckingRefLogger::Ref ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
a.slotToCheck = &ref;
ref = adoptRef(b);
a.slotToCheck = nullptr;
EXPECT_EQ(&b, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | slot=b deref(a) | deref(b) ", takeLogStr().c_str());
{
PoisonedRefCheckingRefLogger::Ref ref(a);
EXPECT_EQ(&a, ref.ptr());
log() << "| ";
a.slotToCheck = &ref;
ref = adoptRef(c);
a.slotToCheck = nullptr;
EXPECT_EQ(&c, ref.ptr());
log() << "| ";
}
EXPECT_STREQ("ref(a) | slot=c deref(a) | deref(c) ", takeLogStr().c_str());
}
} // namespace TestWebKitAPI