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lightningd: use a hash table for peer->dbid.

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Otherwise, loading up when we have 100k peers is *painful*!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2023-01-18 15:34:32 +10:30
committed by Alex Myers
parent cfa632b0e9
commit 0e25d56329
7 changed files with 47 additions and 13 deletions
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25
lightningd/peer_control.c
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@@ -72,6 +72,8 @@
static void destroy_peer(struct peer *peer)
{
peer_node_id_map_del(peer->ld->peers, peer);
if (peer->dbid)
peer_dbid_map_del(peer->ld->peers_by_dbid, peer);
}
static void peer_update_features(struct peer *peer,
@@ -81,6 +83,14 @@ static void peer_update_features(struct peer *peer,
peer->their_features = tal_dup_talarr(peer, u8, their_features);
}
void peer_set_dbid(struct peer *peer, u64 dbid)
{
assert(!peer->dbid);
assert(dbid);
peer->dbid = dbid;
peer_dbid_map_add(peer->ld->peers_by_dbid, peer);
}
struct peer *new_peer(struct lightningd *ld, u64 dbid,
const struct node_id *id,
const struct wireaddr_internal *addr,
@@ -107,6 +117,8 @@ struct peer *new_peer(struct lightningd *ld, u64 dbid,
#endif
peer_node_id_map_add(ld->peers, peer);
if (dbid)
peer_dbid_map_add(ld->peers_by_dbid, peer);
tal_add_destructor(peer, destroy_peer);
return peer;
}
@@ -131,6 +143,7 @@ void maybe_delete_peer(struct peer *peer)
/* This isn't sufficient to keep it in db! */
if (peer->dbid != 0) {
wallet_peer_delete(peer->ld->wallet, peer->dbid);
peer_dbid_map_del(peer->ld->peers_by_dbid, peer);
peer->dbid = 0;
}
return;
@@ -177,17 +190,7 @@ static void peer_channels_cleanup(struct lightningd *ld,
struct peer *find_peer_by_dbid(struct lightningd *ld, u64 dbid)
{
struct peer *p;
struct peer_node_id_map_iter it;
/* FIXME: Support lookup by dbid directly! */
for (p = peer_node_id_map_first(ld->peers, &it);
p;
p = peer_node_id_map_next(ld->peers, &it)) {
if (p->dbid == dbid)
return p;
}
return NULL;
return peer_dbid_map_get(ld->peers_by_dbid, dbid);
}
struct peer *peer_by_id(struct lightningd *ld, const struct node_id *id)