protocol: request txpool contents when synced

A newly synced Alice sends a (typically quite small) list of
txids in the local tpxool to a random peer Bob, who then uses
the existing tx relay system to send Alice any tx in his txpool
which is not in the list Alice sent

1 files changed, 18 insertions, 0 deletions

diff --git a/src/cryptonote_protocol/cryptonote_protocol_defs.h b/src/cryptonote_protocol/cryptonote_protocol_defs.h
index ee7e69eb7..f809bff74 100644
--- a/src/cryptonote_protocol/cryptonote_protocol_defs.h
+++ b/src/cryptonote_protocol/cryptonote_protocol_defs.h
@@ -353,5 +353,23 @@ namespace cryptonote
     };
     typedef epee::misc_utils::struct_init<request_t> request;
   }; 
+
+  /************************************************************************/
+  /*                                                                      */
+  /************************************************************************/
+  struct NOTIFY_GET_TXPOOL_COMPLEMENT
+  {
+    const static int ID = BC_COMMANDS_POOL_BASE + 10;
+
+    struct request_t
+    {
+      std::vector<crypto::hash> hashes;
+
+      BEGIN_KV_SERIALIZE_MAP()
+        KV_SERIALIZE_CONTAINER_POD_AS_BLOB(hashes)
+      END_KV_SERIALIZE_MAP()
+    };
+    typedef epee::misc_utils::struct_init<request_t> request;
+  };
     
 }