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liquidity-ads: persist channel blockheight states to disk

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Adds new tables to database, backfills, basically copies the fee_rates
state machine for channeld.
This commit is contained in:
niftynei
2021-06-22 13:25:59 -05:00
committed by neil saitug
parent a396c341cf
commit 265f960cfe
72 changed files with 1414 additions and 441 deletions
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45
lightningd/channel_control.c
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@@ -69,6 +69,30 @@ static void try_update_feerates(struct lightningd *ld, struct channel *channel)
update_feerates(ld, channel);
}
static void try_update_blockheight(struct lightningd *ld,
struct channel *channel,
u32 blockheight)
{
u8 *msg;
/* We use the same heuristic for channel states as feerates */
if (!channel_fees_can_change(channel))
return;
/* Can't if no daemon listening. */
if (!channel->owner)
return;
/* We don't update the blockheight for non-leased chans */
if (channel->lease_expiry == 0)
return;
log_debug(ld->log, "update_blockheight: height = %u", blockheight);
msg = towire_channeld_blockheight(NULL, blockheight);
subd_send_msg(channel->owner, take(msg));
}
void notify_feerate_change(struct lightningd *ld)
{
struct peer *peer;
@@ -155,6 +179,9 @@ static void lockin_complete(struct channel *channel)
/* Fees might have changed (and we use IMMEDIATE once we're funded),
* so update now. */
try_update_feerates(channel->peer->ld, channel);
try_update_blockheight(channel->peer->ld, channel,
get_block_height(channel->peer->ld->topology));
channel_record_open(channel);
}
@@ -451,6 +478,7 @@ static unsigned channel_msg(struct subd *sd, const u8 *msg, const int *fds)
case WIRE_CHANNELD_SEND_SHUTDOWN:
case WIRE_CHANNELD_DEV_REENABLE_COMMIT:
case WIRE_CHANNELD_FEERATES:
case WIRE_CHANNELD_BLOCKHEIGHT:
case WIRE_CHANNELD_SPECIFIC_FEERATES:
case WIRE_CHANNELD_DEV_MEMLEAK:
case WIRE_CHANNELD_DEV_QUIESCE:
@@ -587,6 +615,9 @@ void peer_start_channeld(struct channel *channel,
channel->funding_outnum,
channel->funding,
channel->minimum_depth,
get_block_height(ld->topology),
channel->blockheight_states,
channel->lease_expiry,
&channel->our_config,
&channel->channel_info.their_config,
channel->fee_states,
@@ -647,9 +678,13 @@ void peer_start_channeld(struct channel *channel,
/* We don't expect a response: we are triggered by funding_depth_cb. */
subd_send_msg(channel->owner, take(initmsg));
/* On restart, feerate might not be what we expect: adjust now. */
if (channel->opener == LOCAL)
/* On restart, feerate and blockheight
* might not be what we expect: adjust now. */
if (channel->opener == LOCAL) {
try_update_feerates(ld, channel);
try_update_blockheight(ld, channel,
get_block_height(ld->topology));
}
}
bool channel_tell_depth(struct lightningd *ld,
@@ -757,7 +792,11 @@ void channel_notify_new_block(struct lightningd *ld,
continue;
if (is_fundee_should_forget(ld, channel, block_height)) {
tal_arr_expand(&to_forget, channel);
}
} else
/* Let channels know about new blocks,
* required for lease updates */
try_update_blockheight(ld, channel,
block_height);
}
}