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openingd: check with lightningd when we receive an offer.

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Instead of lightningd telling us when it's ready, we ask it.
This also provides an opportunity to have a plugin hook at this point.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2019-05-20 14:35:24 +09:30
committed by neil saitug
parent eda5314cb5
commit f3d30f1267
7 changed files with 67 additions and 53 deletions
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30
lightningd/opening_control.c
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@@ -725,6 +725,20 @@ static void channel_config(struct lightningd *ld,
ours->channel_reserve = AMOUNT_SAT(UINT64_MAX);
}
static void opening_got_offer(struct subd *openingd,
const u8 *msg,
struct uncommitted_channel *uc)
{
const char *reason = NULL;
/* Tell them they can't open, if we already have open channel. */
if (peer_active_channel(uc->peer))
reason = "Already have active channel";
subd_send_msg(openingd,
take(towire_opening_got_offer_reply(NULL, reason)));
}
static unsigned int openingd_msg(struct subd *openingd,
const u8 *msg, const int *fds)
{
@@ -760,10 +774,14 @@ static unsigned int openingd_msg(struct subd *openingd,
opening_fundee_finished(openingd, msg, fds, uc);
return 0;
case WIRE_OPENING_GOT_OFFER:
opening_got_offer(openingd, msg, uc);
return 0;
/* We send these! */
case WIRE_OPENING_INIT:
case WIRE_OPENING_FUNDER:
case WIRE_OPENING_CAN_ACCEPT_CHANNEL:
case WIRE_OPENING_GOT_OFFER_REPLY:
case WIRE_OPENING_DEV_MEMLEAK:
/* Replies never get here */
case WIRE_OPENING_DEV_MEMLEAK_REPLY:
@@ -834,21 +852,11 @@ void peer_start_openingd(struct peer *peer,
uc->minimum_depth,
feerate_min(peer->ld, NULL),
feerate_max(peer->ld, NULL),
!peer_active_channel(peer),
peer->localfeatures,
send_msg);
subd_send_msg(uc->openingd, take(msg));
}
void opening_peer_no_active_channels(struct peer *peer)
{
assert(!peer_active_channel(peer));
if (peer->uncommitted_channel) {
subd_send_msg(peer->uncommitted_channel->openingd,
take(towire_opening_can_accept_channel(NULL)));
}
}
/**
* json_fund_channel - Entrypoint for funding a channel
*/