refactor: use NetHandler class to separate instantsend logic and network logic

Author: knst

src/Makefile.am

@@ -258,6 +258,7 @@ BITCOIN_CORE_H = \
   instantsend/db.h \
   instantsend/instantsend.h \
   instantsend/lock.h \
+  instantsend/net_instantsend.h \
   instantsend/signing.h \
   kernel/coinstats.h \
   key.h \
@@ -529,6 +530,7 @@ libbitcoin_node_a_SOURCES = \
   instantsend/db.cpp \
   instantsend/instantsend.cpp \
   instantsend/lock.cpp \
+  instantsend/net_instantsend.cpp \
   instantsend/signing.cpp \
   kernel/coinstats.cpp \
   llmq/blockprocessor.cpp \

src/init.cpp

@@ -87,6 +87,7 @@
 #include <flat-database.h>
 #include <governance/governance.h>
 #include <instantsend/instantsend.h>
+#include <instantsend/net_instantsend.h>
 #include <llmq/context.h>
 #include <llmq/dkgsessionmgr.h>
 #include <llmq/options.h>
@@ -2197,6 +2198,7 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
         g_active_notification_interface = std::make_unique<ActiveNotificationInterface>(*node.active_ctx, *node.mn_activeman);
         RegisterValidationInterface(g_active_notification_interface.get());
     }
+    node.peerman->AddExtraHandler(std::make_unique<NetInstantSend>(node.peerman.get(), *node.llmq_ctx->isman, *node.llmq_ctx->qman, chainman.ActiveChainstate()));
 
     // ********************************************************* Step 7d: Setup other Dash services