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bitcoin: Compute block hash while parsing

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This avoids having to re-serialize the block header just to compute the
hash. It also frees us from having to carry around all the details in the
header and we can hand around a minimal version.
This commit is contained in:
Christian Decker
2020-01-23 13:38:13 +01:00
parent ccb895083f
commit 4de0d1ca22
2 changed files with 2 additions and 2 deletions
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2
bitcoin/block.c
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@@ -60,7 +60,7 @@ bitcoin_block_from_hex(const tal_t *ctx, const struct chainparams *chainparams,
b->hdr.nonce = pull_le32(&p, &len); b->hdr.nonce = pull_le32(&p, &len);
sha256_le32(&shactx, b->hdr.nonce); sha256_le32(&shactx, b->hdr.nonce);
} }
sha256_double_done(&shactx, &b->hdr.hash); sha256_double_done(&shactx, &b->hdr.hash.shad);
num = pull_varint(&p, &len); num = pull_varint(&p, &len);
b->tx = tal_arr(b, struct bitcoin_tx *, num); b->tx = tal_arr(b, struct bitcoin_tx *, num);

2
bitcoin/block.h
View File

@@ -23,7 +23,7 @@ struct bitcoin_block_hdr {
le32 timestamp; le32 timestamp;
le32 target; le32 target;
le32 nonce; le32 nonce;
struct sha256_double hash; struct bitcoin_blkid hash;
}; };
struct elements_block_proof { struct elements_block_proof {