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// Copyright 2015 The Cobalt Authors. All Rights Reserved.
//
// 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 "starboard/common/memory.h"
#include "starboard/configuration.h"
#include "starboard/memory.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace starboard {
namespace nplb {
namespace {
// Choose a size that isn't naturally aligned to anything.
const size_t kSize = 1024 * 128 + 1;
TEST(SbMemoryAllocateAlignedTest, AllocatesAligned) {
const size_t kMaxAlign = 4096 + 1;
for (size_t align = 2; align < kMaxAlign; align <<= 1) {
void* memory = SbMemoryAllocateAligned(align, kSize);
ASSERT_NE(static_cast<void*>(NULL), memory);
EXPECT_TRUE(starboard::common::MemoryIsAligned(memory, align));
SbMemoryDeallocateAligned(memory);
}
}
TEST(SbMemoryAllocateAlignedTest, AllocatesAlignedZero) {
const size_t kMaxAlign = 4096 + 1;
for (size_t align = 2; align < kMaxAlign; align <<= 1) {
void* memory = SbMemoryAllocateAligned(align, 0);
// We can't expect anything here because some implementations may return an
// allocated zero-size memory block, and some implementations may return
// NULL.
if (memory) {
EXPECT_TRUE(starboard::common::MemoryIsAligned(memory, align));
}
SbMemoryDeallocateAligned(memory);
}
}
TEST(SbMemoryAllocateAlignedTest, CanReadWriteToResult) {
const size_t kAlign = 4096;
void* memory = SbMemoryAllocateAligned(kAlign, kSize);
ASSERT_NE(static_cast<void*>(NULL), memory);
char* data = static_cast<char*>(memory);
for (int i = 0; i < kSize; ++i) {
data[i] = static_cast<char>(i);
}
for (int i = 0; i < kSize; ++i) {
EXPECT_EQ(data[i], static_cast<char>(i));
}
SbMemoryDeallocateAligned(memory);
}
} // namespace
} // namespace nplb
} // namespace starboard