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/*
* Copyright (C) 2023 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 "thread.h"
#include "android-base/logging.h"
#include "base/locks.h"
#include "base/mutex.h"
#include "common_runtime_test.h"
#include "thread-current-inl.h"
#include "thread-inl.h"
namespace art HIDDEN {
class ThreadTest : public CommonRuntimeTest {};
// Ensure that basic list operations on ThreadExitFlags work. These are rarely
// exercised in practice, since normally only one flag is registered at a time.
TEST_F(ThreadTest, ThreadExitFlagTest) {
Thread* self = Thread::Current();
ThreadExitFlag tefs[3];
{
MutexLock mu(self, *Locks::thread_list_lock_);
self->NotifyOnThreadExit(&tefs[2]);
ASSERT_TRUE(self->IsRegistered(&tefs[2]));
ASSERT_FALSE(tefs[2].HasExited());
ASSERT_FALSE(self->IsRegistered(&tefs[1]));
self->NotifyOnThreadExit(&tefs[1]);
self->NotifyOnThreadExit(&tefs[0]);
ASSERT_TRUE(self->IsRegistered(&tefs[0]));
ASSERT_TRUE(self->IsRegistered(&tefs[1]));
ASSERT_TRUE(self->IsRegistered(&tefs[2]));
self->UnregisterThreadExitFlag(&tefs[1]);
ASSERT_TRUE(self->IsRegistered(&tefs[0]));
ASSERT_FALSE(self->IsRegistered(&tefs[1]));
ASSERT_TRUE(self->IsRegistered(&tefs[2]));
self->UnregisterThreadExitFlag(&tefs[2]);
ASSERT_TRUE(self->IsRegistered(&tefs[0]));
ASSERT_FALSE(self->IsRegistered(&tefs[1]));
ASSERT_FALSE(self->IsRegistered(&tefs[2]));
}
Thread::DCheckUnregisteredEverywhere(&tefs[1], &tefs[2]);
{
MutexLock mu(self, *Locks::thread_list_lock_);
self->UnregisterThreadExitFlag(&tefs[0]);
ASSERT_FALSE(self->IsRegistered(&tefs[0]));
ASSERT_FALSE(self->IsRegistered(&tefs[1]));
ASSERT_FALSE(self->IsRegistered(&tefs[2]));
}
Thread::DCheckUnregisteredEverywhere(&tefs[0], &tefs[2]);
}
TEST_F(ThreadTest, ThreadExitSignalTest) {
Thread* self = Thread::Current();
ThreadExitFlag tefs[3];
{
MutexLock mu(self, *Locks::thread_list_lock_);
self->NotifyOnThreadExit(&tefs[2]);
ASSERT_TRUE(self->IsRegistered(&tefs[2]));
ASSERT_FALSE(self->IsRegistered(&tefs[1]));
self->NotifyOnThreadExit(&tefs[1]);
ASSERT_TRUE(self->IsRegistered(&tefs[1]));
self->SignalExitFlags();
ASSERT_TRUE(tefs[1].HasExited());
ASSERT_TRUE(tefs[2].HasExited());
}
Thread::DCheckUnregisteredEverywhere(&tefs[1], &tefs[2]);
{
MutexLock mu(self, *Locks::thread_list_lock_);
self->NotifyOnThreadExit(&tefs[0]);
tefs[2].~ThreadExitFlag(); // Destroy and reinitialize.
new (&tefs[2]) ThreadExitFlag();
self->NotifyOnThreadExit(&tefs[2]);
ASSERT_FALSE(tefs[0].HasExited());
ASSERT_TRUE(tefs[1].HasExited());
ASSERT_FALSE(tefs[2].HasExited());
self->SignalExitFlags();
ASSERT_TRUE(tefs[0].HasExited());
ASSERT_TRUE(tefs[1].HasExited());
ASSERT_TRUE(tefs[2].HasExited());
}
Thread::DCheckUnregisteredEverywhere(&tefs[0], &tefs[2]);
}
} // namespace art
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