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/*
* Copyright 2021 Google LLC
*
* 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 <cstdlib>
#include <memory>
namespace csrblocksparse {
void Free(void* ptr) { free(ptr); }
void* Malloc(size_t size) { return malloc(size); }
void aligned_free(void* aligned_memory) { Free(aligned_memory); }
void* aligned_malloc(size_t size, int minimum_alignment) {
#if defined(__ANDROID__)
return memalign(minimum_alignment, size);
#else // !defined(__ANDROID__)
void* ptr = nullptr;
// posix_memalign requires that the requested alignment be at least
// sizeof(void*). In this case, fall back on malloc which should return
// memory aligned to at least the size of a pointer.
const int required_alignment = sizeof(void*);
if (minimum_alignment < required_alignment) return Malloc(size);
int err = posix_memalign(&ptr, minimum_alignment, size);
if (err != 0) {
return nullptr;
} else {
return ptr;
}
#endif
}
} // namespace csrblocksparse
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