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ShuffleCommon.fbs
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ShuffleCommon.fbs
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// Copyright (c) 2020, NVIDIA CORPORATION.
//
// 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.
namespace com.nvidia.spark.rapids.format;
enum CodecType : byte {
/// data simply copied, codec is only for testing
COPY = -1,
/// no compression codec was used on the data
UNCOMPRESSED = 0,
}
/// Descriptor for a compressed buffer
table CodecBufferDescriptor {
/// the compression codec used
codec: CodecType;
/// byte offset from the start of the enclosing compressed buffer
/// where the compressed data begins
compressed_offset: long;
/// size of the compressed data in bytes
compressed_size: long;
/// byte offset from the start of the enclosing uncompressed buffer
/// where the uncompressed data should be written
uncompressed_offset: long;
/// size of the uncompressed data in bytes
uncompressed_size: long;
}
table BufferMeta {
/// ID of this buffer
id: int;
/// size of the buffer data in bytes
size: long;
/// size of the uncompressed buffer data if the data is compressed otherwise 0
uncompressed_size: long;
/// array of codec buffer descriptors if the data is compressed
codec_buffer_descrs: [CodecBufferDescriptor];
}