mirror of
https://github.com/dart-lang/sdk
synced 2024-09-05 00:13:50 +00:00
6c933a4488
Change-Id: I195232311a146248c601ef84640758db59083d12 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/121200 Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
// 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) {
|
|
RelaxedAtomic<uintptr_t> v = 42;
|
|
EXPECT_EQ(static_cast<uintptr_t>(42), v.fetch_add(1));
|
|
EXPECT_EQ(static_cast<uintptr_t>(43), v);
|
|
}
|
|
|
|
VM_UNIT_TEST_CASE(FetchAndDecrement) {
|
|
RelaxedAtomic<uintptr_t> v = 42;
|
|
EXPECT_EQ(static_cast<uintptr_t>(42), v.fetch_sub(1));
|
|
EXPECT_EQ(static_cast<uintptr_t>(41), v);
|
|
}
|
|
|
|
VM_UNIT_TEST_CASE(FetchAndIncrementSigned) {
|
|
RelaxedAtomic<intptr_t> v = -42;
|
|
EXPECT_EQ(static_cast<intptr_t>(-42), v.fetch_add(1));
|
|
EXPECT_EQ(static_cast<intptr_t>(-41), v);
|
|
}
|
|
|
|
VM_UNIT_TEST_CASE(FetchAndDecrementSigned) {
|
|
RelaxedAtomic<intptr_t> v = -42;
|
|
EXPECT_EQ(static_cast<intptr_t>(-42), v.fetch_sub(1));
|
|
EXPECT_EQ(static_cast<intptr_t>(-43), v);
|
|
}
|
|
|
|
VM_UNIT_TEST_CASE(IncrementBy) {
|
|
RelaxedAtomic<intptr_t> v = 42;
|
|
v.fetch_add(100);
|
|
EXPECT_EQ(static_cast<intptr_t>(142), v);
|
|
}
|
|
|
|
VM_UNIT_TEST_CASE(DecrementBy) {
|
|
RelaxedAtomic<intptr_t> v = 42;
|
|
v.fetch_sub(41);
|
|
EXPECT_EQ(static_cast<intptr_t>(1), v);
|
|
}
|
|
|
|
VM_UNIT_TEST_CASE(FetchOrRelaxed) {
|
|
RelaxedAtomic<uint32_t> v = 42;
|
|
uint32_t previous = v.fetch_or(3);
|
|
EXPECT_EQ(static_cast<uint32_t>(42), previous);
|
|
EXPECT_EQ(static_cast<uint32_t>(43), v);
|
|
}
|
|
|
|
VM_UNIT_TEST_CASE(FetchAndRelaxed) {
|
|
RelaxedAtomic<uint32_t> v = 42;
|
|
uint32_t previous = v.fetch_and(3);
|
|
EXPECT_EQ(static_cast<uint32_t>(42), previous);
|
|
EXPECT_EQ(static_cast<uint32_t>(2), v);
|
|
}
|
|
|
|
VM_UNIT_TEST_CASE(LoadRelaxed) {
|
|
RelaxedAtomic<uword> v = 42;
|
|
EXPECT_EQ(static_cast<uword>(42), v.load());
|
|
}
|
|
|
|
TEST_CASE(CompareAndSwapWord) {
|
|
uword old_value = 42;
|
|
RelaxedAtomic<uword> variable = {old_value};
|
|
uword new_value = 100;
|
|
bool success = variable.compare_exchange_strong(old_value, new_value);
|
|
EXPECT_EQ(true, success);
|
|
EXPECT_EQ(static_cast<uword>(42), old_value);
|
|
|
|
old_value = 50;
|
|
success = variable.compare_exchange_strong(old_value, new_value);
|
|
EXPECT_EQ(false, success);
|
|
EXPECT_EQ(static_cast<uword>(100), old_value);
|
|
}
|
|
|
|
TEST_CASE(CompareAndSwapUint32) {
|
|
uint32_t old_value = 42;
|
|
RelaxedAtomic<uint32_t> variable = {old_value};
|
|
uint32_t new_value = 100;
|
|
bool success = variable.compare_exchange_strong(old_value, new_value);
|
|
EXPECT_EQ(true, success);
|
|
EXPECT_EQ(static_cast<uword>(42), old_value);
|
|
|
|
old_value = 50;
|
|
success = variable.compare_exchange_strong(old_value, new_value);
|
|
EXPECT_EQ(false, success);
|
|
EXPECT_EQ(static_cast<uword>(100), old_value);
|
|
}
|
|
|
|
} // namespace dart
|