Limit response to getblocks to half of output buffer size

[novacoin.git] / src / main.cpp

diff --git a/src/main.cpp b/src/main.cpp
index 54902e8..699bee2 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2040,20 +2040,24 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
         if (pindex)
             pindex = pindex->pnext;
         int nLimit = 500 + locator.GetDistanceBack();
+        unsigned int nBytes = 0;
         printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
         for (; pindex; pindex = pindex->pnext)
         {
             if (pindex->GetBlockHash() == hashStop)
             {
-                printf("  getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str());
+                printf("  getblocks stopping at %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str(), nBytes);
                 break;
             }
             pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
-            if (--nLimit <= 0)
+            CBlock block;
+            block.ReadFromDisk(pindex, true);
+            nBytes += block.GetSerializeSize(SER_NETWORK);
+            if (--nLimit <= 0 || nBytes >= SendBufferSize()/2)
             {
                 // When this block is requested, we'll send an inv that'll make them
                 // getblocks the next batch of inventory.
-                printf("  getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str());
+                printf("  getblocks stopping at limit %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str(), nBytes);
                 pfrom->hashContinue = pindex->GetBlockHash();
                 break;
             }