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lightningd: scan blockchain from first possible block.

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Eventually we want to save blockchain in db to avoid this scan, but
for the moment, we need to reload as far back as we may be interested in.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2018-01-03 15:56:43 +10:30 • committed by Christian Decker
parent 93c589efe8
commit 7b735e5de8
3 changed files with 14 additions and 9 deletions
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14
lightningd/chaintopology.c
View file

@ -467,13 +467,11 @@ static void get_init_block(struct bitcoind *bitcoind,
static void get_init_blockhash(struct bitcoind *bitcoind, u32 blockcount,
struct chain_topology *topo)
{
/* Start back before any reasonable forks. */
if (blockcount < 100)
topo->first_blocknum = 0;
else if (!topo->first_blocknum || blockcount - 100 < topo->first_blocknum)
topo->first_blocknum = blockcount - 100;
/* This happens if first_blocknum is UINTMAX-1 */
if (blockcount < topo->first_blocknum)
topo->first_blocknum = blockcount;
/* Start topology from 100 blocks back. */
/* Get up to speed with topology. */
bitcoind_getblockhash(bitcoind, topo->first_blocknum,
get_init_block, topo);
}
@ -716,7 +714,9 @@ void setup_topology(struct chain_topology *topo,
memset(&topo->feerate, 0, sizeof(topo->feerate));
topo->timers = timers;
topo->poll_time = poll_time;
topo->first_blocknum = first_peer_block;
/* Start one before the block we are interested in (as we won't
* get notifications on txs in that block). */
topo->first_blocknum = first_peer_block - 1;
/* Make sure bitcoind is started, and ready */
wait_for_bitcoind(topo->bitcoind);

6
lightningd/lightningd.c
View file

@ -210,6 +210,7 @@ int main(int argc, char *argv[])
struct log_book *log_book;
struct lightningd *ld;
bool newdir;
u32 peer_first_blocknum;
err_set_progname(argv[0]);
@ -291,14 +292,15 @@ int main(int argc, char *argv[])
if (!wallet_htlcs_reconnect(ld->wallet, &ld->htlcs_in, &ld->htlcs_out))
fatal("could not reconnect htlcs loaded from wallet, wallet may be inconsistent.");
peer_first_blocknum = wallet_channels_first_blocknum(ld->wallet);
db_commit_transaction(ld->wallet->db);
/* Initialize block topology (does its own transaction) */
setup_topology(ld->topology,
&ld->timers,
ld->config.poll_time,
/* FIXME: Load from peers. */
0);
peer_first_blocknum);
/* Create RPC socket (if any) */
setup_jsonrpc(ld, ld->rpc_filename);

3
lightningd/test/run-find_my_path.c
View file

@ -87,6 +87,9 @@ struct txfilter *txfilter_new(const tal_t *ctx UNNEEDED)
/* Generated stub for version */
const char *version(void)
{ fprintf(stderr, "version called!\n"); abort(); }
/* Generated stub for wallet_channels_first_blocknum */
u32 wallet_channels_first_blocknum(struct wallet *w UNNEEDED)
{ fprintf(stderr, "wallet_channels_first_blocknum called!\n"); abort(); }
/* Generated stub for wallet_channels_load_active */
bool wallet_channels_load_active(struct wallet *w UNNEEDED, struct list_head *peers UNNEEDED)
{ fprintf(stderr, "wallet_channels_load_active called!\n"); abort(); }