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Stop processing messages on full send buffer and dont disconnect.

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Also decrease default send/receive buffer sizes from 10 to 5 mb
as this patch makes it easy for a node to fill both instead of
only send.
This commit is contained in:
Matt Corallo 2012-03-21 22:10:50 -04:00
parent bcf0f41171
commit 9d6cd04b3b
4 changed files with 14 additions and 17 deletions
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4
src/init.cpp
View File

@ -238,8 +238,8 @@ std::string HelpMessage()
" -dnsseed " + _("Find peers using DNS lookup (default: 1 unless -connect)") + "\n" + " -dnsseed " + _("Find peers using DNS lookup (default: 1 unless -connect)") + "\n" +
" -banscore=<n> " + _("Threshold for disconnecting misbehaving peers (default: 100)") + "\n" + " -banscore=<n> " + _("Threshold for disconnecting misbehaving peers (default: 100)") + "\n" +
" -bantime=<n> " + _("Number of seconds to keep misbehaving peers from reconnecting (default: 86400)") + "\n" + " -bantime=<n> " + _("Number of seconds to keep misbehaving peers from reconnecting (default: 86400)") + "\n" +
" -maxreceivebuffer=<n> " + _("Maximum per-connection receive buffer, <n>*1000 bytes (default: 10000)") + "\n" + " -maxreceivebuffer=<n> " + _("Maximum per-connection receive buffer, <n>*1000 bytes (default: 5000)") + "\n" +
" -maxsendbuffer=<n> " + _("Maximum per-connection send buffer, <n>*1000 bytes (default: 10000)") + "\n" + " -maxsendbuffer=<n> " + _("Maximum per-connection send buffer, <n>*1000 bytes (default: 5000)") + "\n" +
#ifdef USE_UPNP #ifdef USE_UPNP
#if USE_UPNP #if USE_UPNP
" -upnp " + _("Use UPnP to map the listening port (default: 1 when listening)") + "\n" + " -upnp " + _("Use UPnP to map the listening port (default: 1 when listening)") + "\n" +

16
src/main.cpp
View File

@ -2632,25 +2632,21 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
// Send the rest of the chain // Send the rest of the chain
if (pindex) if (pindex)
pindex = pindex->pnext; pindex = pindex->pnext;
int nLimit = 500 + locator.GetDistanceBack(); int nLimit = 500;
unsigned int nBytes = 0;
printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit); 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) for (; pindex; pindex = pindex->pnext)
{ {
if (pindex->GetBlockHash() == hashStop) if (pindex->GetBlockHash() == hashStop)
{ {
printf(" getblocks stopping at %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str(), nBytes); printf(" getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str());
break; break;
} }
pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash())); pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
CBlock block; if (--nLimit <= 0)
block.ReadFromDisk(pindex, true);
nBytes += block.GetSerializeSize(SER_NETWORK, PROTOCOL_VERSION);
if (--nLimit <= 0 || nBytes >= SendBufferSize()/2)
{ {
// When this block is requested, we'll send an inv that'll make them // When this block is requested, we'll send an inv that'll make them
// getblocks the next batch of inventory. // getblocks the next batch of inventory.
printf(" getblocks stopping at limit %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str(), nBytes); printf(" getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str());
pfrom->hashContinue = pindex->GetBlockHash(); pfrom->hashContinue = pindex->GetBlockHash();
break; break;
} }
@ -2910,6 +2906,10 @@ bool ProcessMessages(CNode* pfrom)
loop loop
{ {
// Don't bother if send buffer is too full to respond anyway
if (pfrom->vSend.size() >= SendBufferSize())
break;
// Scan for message start // Scan for message start
CDataStream::iterator pstart = search(vRecv.begin(), vRecv.end(), BEGIN(pchMessageStart), END(pchMessageStart)); CDataStream::iterator pstart = search(vRecv.begin(), vRecv.end(), BEGIN(pchMessageStart), END(pchMessageStart));
int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader()); int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader());

7
src/net.cpp
View File

@ -922,11 +922,8 @@ void ThreadSocketHandler2(void* parg)
pnode->CloseSocketDisconnect(); pnode->CloseSocketDisconnect();
} }
} }
if (vSend.size() > SendBufferSize()) { if (vSend.size() > SendBufferSize())
if (!pnode->fDisconnect) printf("socket send buffer full warning (%d bytes)\n", vSend.size());
printf("socket send flood control disconnect (%d bytes)\n", vSend.size());
pnode->CloseSocketDisconnect();
}
} }
} }
} }

4
src/net.h
View File

@ -26,8 +26,8 @@ extern int nBestHeight;
inline unsigned int ReceiveBufferSize() { return 1000*GetArg("-maxreceivebuffer", 10*1000); } inline unsigned int ReceiveBufferSize() { return 1000*GetArg("-maxreceivebuffer", 5*1000); }
inline unsigned int SendBufferSize() { return 1000*GetArg("-maxsendbuffer", 10*1000); } inline unsigned int SendBufferSize() { return 1000*GetArg("-maxsendbuffer", 5*1000); }
void AddOneShot(std::string strDest); void AddOneShot(std::string strDest);
bool RecvLine(SOCKET hSocket, std::string& strLine); bool RecvLine(SOCKET hSocket, std::string& strLine);