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* Move consts, ipfs, and ipld to pkg (#508) * move ipfs and ipld packages to new pkg/da/ * moved consts to pkg * clean up * go mod tidy
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,64 @@ | ||
| package consts | ||
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| import ( | ||
| "crypto/sha256" | ||
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| "github.com/celestiaorg/nmt/namespace" | ||
| ) | ||
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| // This contains all constants of: | ||
| // https://github.com/celestiaorg/celestia-specs/blob/master/specs/consensus.md#constants | ||
| const ( | ||
| // ShareSize is the size of a share (in bytes). | ||
| // see: https://github.com/celestiaorg/celestia-specs/blob/master/specs/consensus.md#constants | ||
| ShareSize = 256 | ||
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| // NamespaceSize is the namespace size in bytes. | ||
| NamespaceSize = 8 | ||
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| // ShareReservedBytes is the reserved bytes for contiguous appends. | ||
| ShareReservedBytes = 1 | ||
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| // TxShareSize is the number of bytes usable for tx/evidence/ISR shares. | ||
| TxShareSize = ShareSize - NamespaceSize - ShareReservedBytes | ||
| // MsgShareSize is the number of bytes usable for message shares. | ||
| MsgShareSize = ShareSize - NamespaceSize | ||
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| // MaxSquareSize is the maximum number of | ||
| // rows/columns of the original data shares in square layout. | ||
| // Corresponds to AVAILABLE_DATA_ORIGINAL_SQUARE_MAX in the spec. | ||
| // 128*128*256 = 4 Megabytes | ||
| // TODO(ismail): settle on a proper max square | ||
| MaxSquareSize = 128 | ||
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| // MinSquareSize depicts the smallest original square width. | ||
| MinSquareSize = 1 | ||
| MinSharecount = MinSquareSize * MinSquareSize | ||
| ) | ||
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| var ( | ||
| // See spec for further details on the types of available data | ||
| // https://github.com/celestiaorg/celestia-specs/blob/master/specs/consensus.md#reserved-namespace-ids | ||
| // https://github.com/celestiaorg/celestia-specs/blob/de5f4f74f56922e9fa735ef79d9e6e6492a2bad1/specs/data_structures.md#availabledata | ||
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| // TxNamespaceID is the namespace reserved for transaction data | ||
| TxNamespaceID = namespace.ID{0, 0, 0, 0, 0, 0, 0, 1} | ||
| // IntermediateStateRootsNamespaceID is the namespace reserved for | ||
| // intermediate state root data | ||
| IntermediateStateRootsNamespaceID = namespace.ID{0, 0, 0, 0, 0, 0, 0, 2} | ||
| // EvidenceNamespaceID is the namespace reserved for evidence | ||
| EvidenceNamespaceID = namespace.ID{0, 0, 0, 0, 0, 0, 0, 3} | ||
| // MaxReservedNamespace is the lexicographically largest namespace that is | ||
| // reserved for protocol use. It is derived from NAMESPACE_ID_MAX_RESERVED | ||
| // https://github.com/celestiaorg/celestia-specs/blob/master/specs/consensus.md#constants | ||
| MaxReservedNamespace = namespace.ID{0, 0, 0, 0, 0, 0, 0, 255} | ||
| // TailPaddingNamespaceID is the namespace ID for tail padding. All data | ||
| // with this namespace will be ignored | ||
| TailPaddingNamespaceID = namespace.ID{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE} | ||
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| // ParitySharesNamespaceID indicates that share contains erasure data | ||
| ParitySharesNamespaceID = namespace.ID{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF} | ||
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| // NewBaseHashFunc change accordingly if another hash.Hash should be used as a base hasher in the NMT: | ||
| NewBaseHashFunc = sha256.New | ||
| ) |