net_processing: move MaybeSetPeerAsAnnouncingHeadersAndIDs into PeerManagerImpl

Allows making lNodesAnnouncingHeaderAndIDs and
nPeersWithValidatedDownloads member vars instead of globals.

Author: ajtowns

src/net_processing.cpp

@@ -452,20 +452,28 @@ class PeerManagerImpl final : public PeerManager
     /** Expiration-time ordered list of (expire time, relay map entry) pairs. */
     std::deque<std::pair<int64_t, MapRelay::iterator>> vRelayExpiration GUARDED_BY(cs_main);
 
+    /**
+     * When a peer sends us a valid block, instruct it to announce blocks to us
+     * using CMPCTBLOCK if possible by adding its nodeid to the end of
+     * lNodesAnnouncingHeaderAndIDs, and keeping that list under a certain size by
+     * removing the first element if necessary.
+     */
+    void MaybeSetPeerAsAnnouncingHeaderAndIDs(NodeId nodeid, CConnman& connman) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+
+    /** Stack of nodes which we have set to announce using compact blocks */
+    std::list<NodeId> lNodesAnnouncingHeaderAndIDs GUARDED_BY(cs_main);
+
+    /** Number of peers from which we're downloading blocks. */
+    int nPeersWithValidatedDownloads GUARDED_BY(cs_main) = 0;
 
 };
 } // namespace
 
 namespace {
-    /** Stack of nodes which we have set to announce using compact blocks */
-    std::list<NodeId> lNodesAnnouncingHeaderAndIDs GUARDED_BY(cs_main);
 
     /** Number of preferable block download peers. */
     int nPreferredDownload GUARDED_BY(cs_main) = 0;
 
-    /** Number of peers from which we're downloading blocks. */
-    int nPeersWithValidatedDownloads GUARDED_BY(cs_main) = 0;
-
     struct IteratorComparator
     {
         template<typename I>
@@ -731,13 +739,7 @@ static void UpdateBlockAvailability(NodeId nodeid, const uint256 &hash) EXCLUSIV
     }
 }
 
-/**
- * When a peer sends us a valid block, instruct it to announce blocks to us
- * using CMPCTBLOCK if possible by adding its nodeid to the end of
- * lNodesAnnouncingHeaderAndIDs, and keeping that list under a certain size by
- * removing the first element if necessary.
- */
-static void MaybeSetPeerAsAnnouncingHeaderAndIDs(NodeId nodeid, CConnman& connman) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
+void PeerManagerImpl::MaybeSetPeerAsAnnouncingHeaderAndIDs(NodeId nodeid, CConnman& connman) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
     AssertLockHeld(cs_main);
     CNodeState* nodestate = State(nodeid);
@@ -753,7 +755,7 @@ static void MaybeSetPeerAsAnnouncingHeaderAndIDs(NodeId nodeid, CConnman& connma
                 return;
             }
         }
-        connman.ForNode(nodeid, [&connman](CNode* pfrom) EXCLUSIVE_LOCKS_REQUIRED(::cs_main) {
+        connman.ForNode(nodeid, [this, &connman](CNode* pfrom) EXCLUSIVE_LOCKS_REQUIRED(::cs_main) {
             AssertLockHeld(::cs_main);
             uint64_t nCMPCTBLOCKVersion = (pfrom->GetLocalServices() & NODE_WITNESS) ? 2 : 1;
             if (lNodesAnnouncingHeaderAndIDs.size() >= 3) {