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zstd_compression: Make use of std::span

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Allows for the incoming data stream to be non-allocating.
This commit is contained in:
Lioncash 2021-05-24 05:32:32 -04:00
parent 00213377b1
commit 49bfd0c461
2 changed files with 4 additions and 3 deletions
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2
src/common/zstd_compression.cpp
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@ -32,7 +32,7 @@ std::vector<u8> CompressDataZSTDDefault(const u8* source, std::size_t source_siz
return CompressDataZSTD(source, source_size, ZSTD_CLEVEL_DEFAULT); return CompressDataZSTD(source, source_size, ZSTD_CLEVEL_DEFAULT);
} }
std::vector<u8> DecompressDataZSTD(const std::vector<u8>& compressed) { std::vector<u8> DecompressDataZSTD(std::span<const u8> compressed) {
const std::size_t decompressed_size = const std::size_t decompressed_size =
ZSTD_getDecompressedSize(compressed.data(), compressed.size()); ZSTD_getDecompressedSize(compressed.data(), compressed.size());
std::vector<u8> decompressed(decompressed_size); std::vector<u8> decompressed(decompressed_size);

5
src/common/zstd_compression.h
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@ -4,6 +4,7 @@
#pragma once #pragma once
#include <span>
#include <vector> #include <vector>
#include "common/common_types.h" #include "common/common_types.h"
@ -40,6 +41,6 @@ namespace Common::Compression {
* *
* @return the decompressed data. * @return the decompressed data.
*/ */
[[nodiscard]] std::vector<u8> DecompressDataZSTD(const std::vector<u8>& compressed); [[nodiscard]] std::vector<u8> DecompressDataZSTD(std::span<const u8> compressed);
} // namespace Common::Compression } // namespace Common::Compression