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gossip: Tracking tx index in topology

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The txlocator was reporting the index in the purged array of
transactions instead of the index in the original block.
This commit is contained in:
Christian Decker 2016-12-11 23:22:08 +01:00 committed by Rusty Russell
parent 57d5ae96a4
commit e8d68757f6
1 changed files with 11 additions and 6 deletions
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17
daemon/chaintopology.c
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@ -37,6 +37,9 @@ struct block {
/* Transactions in this block we care about */
struct sha256_double *txids;
/* And their associated index in the block */
u32 *txnums;
/* Full copy of txs (trimmed to txs list in connect_block) */
struct bitcoin_tx **full_txs;
};
@ -107,12 +110,14 @@ static u32 get_mediantime(const struct topology *topo, const struct block *b)
}
/* FIXME: Remove tx from block when peer done. */
static void add_tx_to_block(struct block *b, const struct sha256_double *txid)
static void add_tx_to_block(struct block *b, const struct sha256_double *txid, const u32 txnum)
{
size_t n = tal_count(b->txids);
tal_resize(&b->txids, n+1);
tal_resize(&b->txnums, n+1);
b->txids[n] = *txid;
b->txnums[n] = txnum;
}
static bool we_broadcast(struct lightningd_state *dstate,
@ -171,7 +176,7 @@ static void connect_block(struct lightningd_state *dstate,
/* We did spends first, in case that tells us to watch tx. */
bitcoin_txid(tx, &txid);
if (watching_txid(dstate, &txid) || we_broadcast(dstate, &txid))
add_tx_to_block(b, &txid);
add_tx_to_block(b, &txid, i);
}
b->full_txs = tal_free(b->full_txs);
@ -403,6 +408,7 @@ static struct block *new_block(struct lightningd_state *dstate,
b->hdr = blk->hdr;
b->txids = tal_arr(b, struct sha256_double, 0);
b->txnums = tal_arr(b, u32, 0);
b->full_txs = tal_steal(b, blk->tx);
return b;
@ -547,15 +553,14 @@ struct txlocator *locate_tx(const void *ctx, struct lightningd_state *dstate,
struct txlocator *loc = talz(ctx, struct txlocator);
loc->blkheight = block->height;
size_t i, n = tal_count(block->txids);
for (i = 0; i < n; i++) {
if (structeq(&block->txids[i], txid)){
loc->index = i;
break;
loc->index = block->txnums[i];
return loc;
}
}
return loc;
return tal_free(loc);
}
static void json_dev_broadcast(struct command *cmd,