59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/***
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* IPFS has the notion of storage blocks.
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* Raw data with a multihash key (the Cid)
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*/
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#ifndef __IPFS_BLOCKS_BLOCK_H__
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#define __IPFS_BLOCKS_BLOCK_H__
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#include "ipfs/cid/cid.h"
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struct Block {
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struct Cid* cid;
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unsigned char* data;
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size_t data_length;
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};
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/***
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* Create a new block
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* @returns a new allocated Block struct
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*/
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struct Block* ipfs_blocks_block_new();
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int ipfs_blocks_block_add_data(const unsigned char* data, size_t data_size, struct Block* block);
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/***
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* Free resources used by the creation of a block
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* @param block the block to free
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* @returns true(1) on success
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*/
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int ipfs_blocks_block_free(struct Block* block);
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/**
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* Determine the approximate size of an encoded block
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* @param block the block to measure
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* @returns the approximate size needed to encode the protobuf
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*/
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size_t ipfs_blocks_block_protobuf_encode_size(const struct Block* block);
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/**
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* Encode the Block into protobuf format
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* @param block the block to encode
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* @param buffer the buffer to fill
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* @param max_buffer_size the max size of the buffer
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* @param bytes_written the number of bytes used
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* @returns true(1) on success
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*/
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int ipfs_blocks_block_protobuf_encode(const struct Block* block, unsigned char* buffer, size_t max_buffer_size, size_t* bytes_written);
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/***
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* Decode from a protobuf stream into a Block struct
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* @param buffer the buffer to pull from
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* @param buffer_length the length of the buffer
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* @param block the block to fill
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* @returns true(1) on success
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*/
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int ipfs_blocks_block_protobuf_decode(const unsigned char* buffer, const size_t buffer_length, struct Block** block);
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#endif
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