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#pragma once
#include <util/generic/buffer.h>
#include <util/generic/yexception.h>
#include <util/memory/blob.h>
#include <util/string/cast.h>
#include <util/system/src_root.h>
#include <vector>
#include <bitset>
namespace NErasure {
//! The maximum total number of blocks our erasure codec can handle.
static constexpr int MaxTotalPartCount = 16;
//! Max word size to use. `w` in jerasure notation
static constexpr int MaxWordSize = 8;
//! Max threshold to generate bitmask for CanRepair indices for LRC encoding.
static constexpr int BitmaskOptimizationThreshold = 22;
//! A vector type for holding block indexes.
using TPartIndexList = std::vector<int>;
//! Each bit corresponds to a possible block index.
using TPartIndexSet = std::bitset<MaxTotalPartCount>;
template <class TBlobType>
struct ICodec;
struct TDefaultCodecTraits {
using TBlobType = TBlob;
using TMutableBlobType = TBlob;
using TBufferType = TBuffer;
static inline TMutableBlobType AllocateBlob(size_t size) {
TBufferType buffer(size);
buffer.Resize(size);
// The buffer is cleared after this call so no use after free.
return TBlob::FromBuffer(buffer);
}
// AllocateBuffer must fill the memory with 0.
static inline TBufferType AllocateBuffer(size_t size) {
TBufferType buffer(size);
buffer.Fill(0, size);
return buffer;
}
static inline TBlobType FromBufferToBlob(TBufferType&& blob) {
return TBlobType::FromBuffer(blob);
}
};
} // namespace NErasure
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