84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
|
/*
|
||
|
|
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
|
||
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||
|
|
*
|
||
|
|
* This code is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License version 2 only, as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
||
|
|
* accompanied this code).
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License version
|
||
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
||
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
|
|
*
|
||
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
||
|
|
* or visit www.oracle.com if you need additional information or have any
|
||
|
|
* questions.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "precompiled.hpp"
|
||
|
|
#include "runtime/atomic.hpp"
|
||
|
|
#include "unittest.hpp"
|
||
|
|
|
||
|
|
// These tests of Atomic only verify functionality. They don't verify atomicity.
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
struct AtomicEnumTestSupport {
|
||
|
|
volatile T _test_value;
|
||
|
|
|
||
|
|
AtomicEnumTestSupport() : _test_value{} {}
|
||
|
|
|
||
|
|
void test_store_load(T value) {
|
||
|
|
EXPECT_NE(value, Atomic::load(&_test_value));
|
||
|
|
Atomic::store(&_test_value, value);
|
||
|
|
EXPECT_EQ(value, Atomic::load(&_test_value));
|
||
|
|
}
|
||
|
|
|
||
|
|
void test_cmpxchg(T value1, T value2) {
|
||
|
|
EXPECT_NE(value1, Atomic::load(&_test_value));
|
||
|
|
Atomic::store(&_test_value, value1);
|
||
|
|
EXPECT_EQ(value1, Atomic::cmpxchg(&_test_value, value2, value2));
|
||
|
|
EXPECT_EQ(value1, Atomic::load(&_test_value));
|
||
|
|
EXPECT_EQ(value1, Atomic::cmpxchg(&_test_value, value1, value2));
|
||
|
|
EXPECT_EQ(value2, Atomic::load(&_test_value));
|
||
|
|
}
|
||
|
|
|
||
|
|
void test_xchg(T value1, T value2) {
|
||
|
|
EXPECT_NE(value1, Atomic::load(&_test_value));
|
||
|
|
Atomic::store(&_test_value, value1);
|
||
|
|
EXPECT_EQ(value1, Atomic::xchg(&_test_value, value2));
|
||
|
|
EXPECT_EQ(value2, Atomic::load(&_test_value));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
namespace AtomicEnumTestUnscoped { // Scope the enumerators.
|
||
|
|
enum TestEnum { A, B, C };
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(AtomicEnumTest, unscoped_enum) {
|
||
|
|
using namespace AtomicEnumTestUnscoped;
|
||
|
|
using Support = AtomicEnumTestSupport<TestEnum>;
|
||
|
|
|
||
|
|
Support().test_store_load(B);
|
||
|
|
Support().test_cmpxchg(B, C);
|
||
|
|
Support().test_xchg(B, C);
|
||
|
|
}
|
||
|
|
|
||
|
|
enum class AtomicEnumTestScoped { A, B, C };
|
||
|
|
|
||
|
|
TEST(AtomicEnumTest, scoped_enum) {
|
||
|
|
const AtomicEnumTestScoped B = AtomicEnumTestScoped::B;
|
||
|
|
const AtomicEnumTestScoped C = AtomicEnumTestScoped::C;
|
||
|
|
using Support = AtomicEnumTestSupport<AtomicEnumTestScoped>;
|
||
|
|
|
||
|
|
Support().test_store_load(B);
|
||
|
|
Support().test_cmpxchg(B, C);
|
||
|
|
Support().test_xchg(B, C);
|
||
|
|
}
|