| // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "platform/atomic.h" |
| #include "platform/assert.h" |
| #include "platform/utils.h" |
| #include "vm/globals.h" |
| #include "vm/unit_test.h" |
| |
| namespace dart { |
| |
| VM_UNIT_TEST_CASE(FetchAndIncrement) { |
| uintptr_t v = 42; |
| EXPECT_EQ(static_cast<uintptr_t>(42), |
| AtomicOperations::FetchAndIncrement(&v)); |
| EXPECT_EQ(static_cast<uintptr_t>(43), v); |
| } |
| |
| VM_UNIT_TEST_CASE(FetchAndDecrement) { |
| uintptr_t v = 42; |
| EXPECT_EQ(static_cast<uintptr_t>(42), |
| AtomicOperations::FetchAndDecrement(&v)); |
| EXPECT_EQ(static_cast<uintptr_t>(41), v); |
| } |
| |
| VM_UNIT_TEST_CASE(FetchAndIncrementSigned) { |
| intptr_t v = -42; |
| EXPECT_EQ(static_cast<intptr_t>(-42), |
| AtomicOperations::FetchAndIncrement(&v)); |
| EXPECT_EQ(static_cast<intptr_t>(-41), v); |
| } |
| |
| VM_UNIT_TEST_CASE(FetchAndDecrementSigned) { |
| intptr_t v = -42; |
| EXPECT_EQ(static_cast<intptr_t>(-42), |
| AtomicOperations::FetchAndDecrement(&v)); |
| EXPECT_EQ(static_cast<intptr_t>(-43), v); |
| } |
| |
| VM_UNIT_TEST_CASE(IncrementBy) { |
| intptr_t v = 42; |
| AtomicOperations::IncrementBy(&v, 100); |
| EXPECT_EQ(static_cast<intptr_t>(142), v); |
| } |
| |
| VM_UNIT_TEST_CASE(DecrementBy) { |
| intptr_t v = 42; |
| AtomicOperations::DecrementBy(&v, 41); |
| EXPECT_EQ(static_cast<intptr_t>(1), v); |
| } |
| |
| VM_UNIT_TEST_CASE(FetchOrRelaxed) { |
| uint32_t v = 42; |
| uint32_t previous = AtomicOperations::FetchOrRelaxedUint32(&v, 3); |
| EXPECT_EQ(static_cast<uint32_t>(42), previous); |
| EXPECT_EQ(static_cast<uint32_t>(43), v); |
| } |
| |
| VM_UNIT_TEST_CASE(FetchAndRelaxed) { |
| uint32_t v = 42; |
| uint32_t previous = AtomicOperations::FetchAndRelaxedUint32(&v, 3); |
| EXPECT_EQ(static_cast<uint32_t>(42), previous); |
| EXPECT_EQ(static_cast<uint32_t>(2), v); |
| } |
| |
| VM_UNIT_TEST_CASE(LoadRelaxed) { |
| uword v = 42; |
| EXPECT_EQ(static_cast<uword>(42), AtomicOperations::LoadRelaxed(&v)); |
| } |
| |
| TEST_CASE(CompareAndSwapWord) { |
| uword old_value = 42; |
| uword new_value = 100; |
| uword result = |
| AtomicOperations::CompareAndSwapWord(&old_value, old_value, new_value); |
| EXPECT_EQ(static_cast<uword>(42), result); |
| } |
| |
| TEST_CASE(CompareAndSwapUint32) { |
| uint32_t old_value = 42; |
| uint32_t new_value = 100; |
| uint32_t result = |
| AtomicOperations::CompareAndSwapUint32(&old_value, old_value, new_value); |
| EXPECT_EQ(static_cast<uint32_t>(42), result); |
| } |
| |
| } // namespace dart |