Merge bitcoin/bitcoin#28016: p2p: gives seednode priority over dnsseed if both are provided

82f41d76f1c6ad38290917dad5499ffbe6b3974d Added seednode prioritization message to help output (tdb3)
3120a4678ab2a71a381e847688f44068749cfa97 Gives seednode priority over dnsseed if both are provided (Sergi Delgado Segura)

Pull request description:

  This is a follow-up of #27577

  If both `seednode` and `dnsseed` are provided, the node will start a race between them in order to fetch data to feed the `addrman`.

  This PR gives priority to `seednode` over `dnsseed` so if some nodes are provided as seeds, they can be tried before defaulting to the `dnsseeds`

ACKs for top commit:
  davidgumberg:
    untested reACK https://github.com/bitcoin/bitcoin/commit/82f41d76f1c6ad38290917dad5499ffbe6b3974d
  itornaza:
    tested re-ACK 82f41d76f1c6ad38290917dad5499ffbe6b3974d
  achow101:
    ACK 82f41d76f1c6ad38290917dad5499ffbe6b3974d
  cbergqvist:
    ACK 82f41d76f1c6ad38290917dad5499ffbe6b3974d

Tree-SHA512: 4e39e10a7449af6cd9b8f9f6878f846b94bca11baf89ff2d4fbcd4f28293978a6ed71a3a86cea36d49eca891314c834e32af93f37a09c2cc698a878f84d31c62

1 files changed, 2 insertions, 0 deletions

diff --git a/src/net.h b/src/net.h
index f1911fa2ce..af41988ba0 100644
--- a/src/net.h
+++ b/src/net.h
@@ -1173,6 +1173,8 @@ public:
 
     void StartExtraBlockRelayPeers();
 
+    // Count the number of full-relay peer we have.
+    int GetFullOutboundConnCount() const;
     // Return the number of outbound peers we have in excess of our target (eg,
     // if we previously called SetTryNewOutboundPeer(true), and have since set
     // to false, we may have extra peers that we wish to disconnect). This may