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1 | // Licensed to the Apache Software Foundation (ASF) under one |
2 | // or more contributor license agreements. See the NOTICE file | |
3 | // distributed with this work for additional information | |
4 | // regarding copyright ownership. The ASF licenses this file | |
5 | // to you under the Apache License, Version 2.0 (the | |
6 | // "License"); you may not use this file except in compliance | |
7 | // with the License. You may obtain a copy of the License at | |
8 | // | |
9 | // http://www.apache.org/licenses/LICENSE-2.0 | |
10 | // | |
11 | // Unless required by applicable law or agreed to in writing, | |
12 | // software distributed under the License is distributed on an | |
13 | // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
14 | // KIND, either express or implied. See the License for the | |
15 | // specific language governing permissions and limitations | |
16 | // under the License. | |
17 | ||
18 | #pragma once | |
19 | ||
20 | namespace arrow { | |
21 | ||
22 | namespace internal { | |
23 | struct Empty; | |
24 | } // namespace internal | |
25 | ||
26 | template <typename T = internal::Empty> | |
27 | class WeakFuture; | |
28 | class FutureWaiter; | |
29 | ||
30 | class TimestampParser; | |
31 | ||
32 | namespace internal { | |
33 | ||
34 | class Executor; | |
35 | class TaskGroup; | |
36 | class ThreadPool; | |
37 | ||
38 | } // namespace internal | |
39 | ||
40 | struct Compression { | |
41 | /// \brief Compression algorithm | |
42 | enum type { | |
43 | UNCOMPRESSED, | |
44 | SNAPPY, | |
45 | GZIP, | |
46 | BROTLI, | |
47 | ZSTD, | |
48 | LZ4, | |
49 | LZ4_FRAME, | |
50 | LZO, | |
51 | BZ2, | |
52 | LZ4_HADOOP | |
53 | }; | |
54 | }; | |
55 | ||
56 | namespace util { | |
57 | class Compressor; | |
58 | class Decompressor; | |
59 | class Codec; | |
60 | } // namespace util | |
61 | ||
62 | } // namespace arrow |