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-rw-r--r--src/protocol.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/protocol.h b/src/protocol.h
index 452b5b28ce..43d8ac067a 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -291,7 +291,15 @@ enum ServiceFlags : uint64_t {
* unless they set NODE_NETWORK_LIMITED and we are out of IBD, in which
* case NODE_NETWORK_LIMITED suffices).
*
- * Thus, generally, avoid calling with peerServices == NODE_NONE.
+ * Thus, generally, avoid calling with peerServices == NODE_NONE, unless
+ * state-specific flags must absolutely be avoided. When called with
+ * peerServices == NODE_NONE, the returned desirable service flags are
+ * guaranteed to not change dependant on state - ie they are suitable for
+ * use when describing peers which we know to be desirable, but for which
+ * we do not have a confirmed set of service flags.
+ *
+ * If the NODE_NONE return value is changed, contrib/seeds/makeseeds.py
+ * should be updated appropriately to filter for the same nodes.
*/
static ServiceFlags GetDesirableServiceFlags(ServiceFlags services) {
return ServiceFlags(NODE_NETWORK | NODE_WITNESS);