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42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include <cstdint>
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namespace arrow {
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namespace ipc {
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// Buffers are padded to 64-byte boundaries (for SIMD)
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static constexpr int32_t kArrowAlignment = 64;
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// Tensors are padded to 64-byte boundaries
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static constexpr int32_t kTensorAlignment = 64;
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// Align on 8-byte boundaries in IPC
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static constexpr int32_t kArrowIpcAlignment = 8;
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static constexpr uint8_t kPaddingBytes[kArrowAlignment] = {0};
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static inline int64_t PaddedLength(int64_t nbytes, int32_t alignment = kArrowAlignment) {
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return ((nbytes + alignment - 1) / alignment) * alignment;
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}
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} // namespace ipc
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} // namespace arrow
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