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LibCompress: Port DeflateCompressor to Core::Stream

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This commit is contained in:
Tim Schumacher 2022-12-27 13:49:42 +01:00 • committed by Andreas Kling
parent a212bc3052
commit 8cd2cf2b77
7 changed files with 107 additions and 97 deletions
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8
Userland/Libraries/LibCompress/Gzip.cpp
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@ -194,11 +194,9 @@ ErrorOr<size_t> GzipCompressor::write(ReadonlyBytes bytes)
header.extra_flags = 3; // DEFLATE sets 2 for maximum compression and 4 for minimum compression
header.operating_system = 3; // unix
TRY(m_output_stream->write_entire_buffer({ &header, sizeof(header) }));
Core::Stream::WrapInAKOutputStream wrapped_stream { *m_output_stream };
DeflateCompressor compressed_stream { wrapped_stream };
if (!compressed_stream.write_or_error(bytes))
return Error::from_string_literal("Underlying DeflateCompressor indicated an error");
compressed_stream.final_flush();
DeflateCompressor compressed_stream { Core::Stream::Handle(*m_output_stream) };
TRY(compressed_stream.write_entire_buffer(bytes));
TRY(compressed_stream.final_flush());
Crypto::Checksum::CRC32 crc32;
crc32.update(bytes);
LittleEndian<u32> digest = crc32.digest();