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connectd: optimize case where peer doesn't want gossip.

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LND and us send 0xFFFFFFFF to turn off gossip.  LDK and Eclair don't
seem to turn off gossip at all, but that's OK.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2022-07-15 15:28:45 +09:30
parent 50180e040c
commit 92fe871467
1 changed files with 6 additions and 1 deletions
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7
connectd/multiplex.c
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@ -632,7 +632,12 @@ static void handle_gossip_timestamp_filter_in(struct peer *peer, const u8 *msg)
if (peer->gs.timestamp_max < peer->gs.timestamp_min)
peer->gs.timestamp_max = UINT32_MAX;
peer->gs.off = 1;
/* Optimization: they don't want anything. LND and us (at least),
* both set first_timestamp to 0xFFFFFFFF to indicate that. */
if (peer->gs.timestamp_min == UINT32_MAX)
peer->gs.off = peer->daemon->gossip_store_end;
else
peer->gs.off = 1;
/* BOLT #7:
* - MAY wait for the next outgoing gossip flush to send these.