check_block: free up proofs when we add txhash.

rustyrussell · rustyrussell · commit ffedf2619172 · 2014-09-16T12:32:53.000+09:30
We previously did it only when we add a full tx, but adding a txhash
also means we don't need the proof any more (once we have them all).

Otherwise check_block_shard() asserts after we recv_shard.

Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
diff --git a/check_block.c b/check_block.c
@@ -287,6 +287,10 @@ bool put_txhash_in_shard(struct state *state,
 	add_txhash_to_hashes(state, shard, block, shardnum, txoff,
 			     &txrefhash->txhash);
 
+	/* If we've just filled it, we don't need proofs any more. */
+	if (shard_all_hashes(shard))
+		shard->proof = tal_free(shard->proof);
+
 	/* This could eliminate a pending tx. */
 	state->pending->needs_recheck = true;
 
