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/*
* Copyright (C) 2014 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 "common_runtime_test.h"
#include "reference_queue.h"
#include "handle_scope-inl.h"
#include "mirror/class-inl.h"
#include "scoped_thread_state_change.h"
namespace art {
namespace gc {
class ReferenceQueueTest : public CommonRuntimeTest {};
TEST_F(ReferenceQueueTest, EnqueueDequeue) {
Thread* self = Thread::Current();
StackHandleScope<20> hs(self);
Mutex lock("Reference queue lock");
ReferenceQueue queue(&lock);
ASSERT_TRUE(queue.IsEmpty());
ScopedObjectAccess soa(self);
ASSERT_EQ(queue.GetLength(), 0U);
auto ref_class = hs.NewHandle(
Runtime::Current()->GetClassLinker()->FindClass(self, "Ljava/lang/ref/WeakReference;",
NullHandle<mirror::ClassLoader>()));
ASSERT_TRUE(ref_class.Get() != nullptr);
auto ref1(hs.NewHandle(ref_class->AllocObject(self)->AsReference()));
ASSERT_TRUE(ref1.Get() != nullptr);
auto ref2(hs.NewHandle(ref_class->AllocObject(self)->AsReference()));
ASSERT_TRUE(ref2.Get() != nullptr);
// FIFO ordering.
queue.EnqueuePendingReference(ref1.Get());
ASSERT_TRUE(!queue.IsEmpty());
ASSERT_EQ(queue.GetLength(), 1U);
queue.EnqueuePendingReference(ref2.Get());
ASSERT_TRUE(!queue.IsEmpty());
ASSERT_EQ(queue.GetLength(), 2U);
ASSERT_EQ(queue.DequeuePendingReference(), ref2.Get());
ASSERT_TRUE(!queue.IsEmpty());
ASSERT_EQ(queue.GetLength(), 1U);
ASSERT_EQ(queue.DequeuePendingReference(), ref1.Get());
ASSERT_EQ(queue.GetLength(), 0U);
ASSERT_TRUE(queue.IsEmpty());
}
TEST_F(ReferenceQueueTest, Dump) {
Thread* self = Thread::Current();
StackHandleScope<20> hs(self);
Mutex lock("Reference queue lock");
ReferenceQueue queue(&lock);
ScopedObjectAccess soa(self);
queue.Dump(LOG(INFO));
auto weak_ref_class = hs.NewHandle(
Runtime::Current()->GetClassLinker()->FindClass(self, "Ljava/lang/ref/WeakReference;",
NullHandle<mirror::ClassLoader>()));
ASSERT_TRUE(weak_ref_class.Get() != nullptr);
auto finalizer_ref_class = hs.NewHandle(
Runtime::Current()->GetClassLinker()->FindClass(self, "Ljava/lang/ref/FinalizerReference;",
NullHandle<mirror::ClassLoader>()));
ASSERT_TRUE(finalizer_ref_class.Get() != nullptr);
auto ref1(hs.NewHandle(weak_ref_class->AllocObject(self)->AsReference()));
ASSERT_TRUE(ref1.Get() != nullptr);
auto ref2(hs.NewHandle(finalizer_ref_class->AllocObject(self)->AsReference()));
ASSERT_TRUE(ref2.Get() != nullptr);
queue.EnqueuePendingReference(ref1.Get());
queue.Dump(LOG(INFO));
queue.EnqueuePendingReference(ref2.Get());
queue.Dump(LOG(INFO));
}
} // namespace gc
} // namespace art
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