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gossip: Prevent normal messages to trigger the staggered broadcast

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Only call `peer_dump_gossip` if the broadcast timer actually
expired. previously it could get triggered by any normal message.
This commit is contained in:
Christian Decker 2017-02-08 14:05:21 +01:00
parent fccab6411d
commit 8912272983
1 changed files with 12 additions and 4 deletions
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16
lightningd/gossip/gossip.c
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@ -60,6 +60,8 @@ struct peer {
/* High water mark for the staggered broadcast */
u64 broadcast_index;
u8 **msg_out;
/* Is it time to continue the staggered broadcast? */
bool gossip_sync;
};
static void destroy_peer(struct peer *peer)
@ -158,11 +160,12 @@ static struct io_plan *pkt_out(struct io_conn *conn, struct peer *peer);
/* Wake up the outgoing direction of the connection and write any
* queued messages. Needed since the `io_wake` method signature does
* not allow us to specify it as the callback for `new_reltimer`.
* not allow us to specify it as the callback for `new_reltimer`, but
* it allows us to set an additional flag for the routing dump..
*/
static void wake_pkt_out(struct peer *peer)
{
/* */
peer->gossip_sync = true;
io_wake(peer);
}
@ -196,8 +199,13 @@ static struct io_plan *pkt_out(struct io_conn *conn, struct peer *peer)
return peer_write_message(conn, peer->cs, out, pkt_out);
}
/* Send any queued up broadcast messages */
return peer_dump_gossip(conn, peer);
if (peer->gossip_sync){
/* Send any queued up broadcast messages */
peer->gossip_sync = false;
return peer_dump_gossip(conn, peer);
} else {
return io_out_wait(conn, peer, pkt_out, peer);
}
}
static bool has_even_bit(const u8 *bitmap)