1 | #include <Compression/CompressionCodecNone.h> |
2 | #include <Compression/CompressionInfo.h> |
3 | #include <Compression/CompressionFactory.h> |
4 | |
5 | |
6 | namespace DB |
7 | { |
8 | |
9 | UInt8 CompressionCodecNone::getMethodByte() const |
10 | { |
11 | return static_cast<UInt8>(CompressionMethodByte::NONE); |
12 | } |
13 | |
14 | String CompressionCodecNone::getCodecDesc() const |
15 | { |
16 | return "NONE" ; |
17 | } |
18 | |
19 | UInt32 CompressionCodecNone::doCompressData(const char * source, UInt32 source_size, char * dest) const |
20 | { |
21 | memcpy(dest, source, source_size); |
22 | return source_size; |
23 | } |
24 | |
25 | void CompressionCodecNone::doDecompressData(const char * source, UInt32 /*source_size*/, char * dest, UInt32 uncompressed_size) const |
26 | { |
27 | memcpy(dest, source, uncompressed_size); |
28 | } |
29 | |
30 | void registerCodecNone(CompressionCodecFactory & factory) |
31 | { |
32 | factory.registerSimpleCompressionCodec("NONE" , static_cast<char>(CompressionMethodByte::NONE), [&] () |
33 | { |
34 | return std::make_shared<CompressionCodecNone>(); |
35 | }); |
36 | } |
37 | |
38 | } |
39 | |