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Merge pull request #1081 from jgarzik/pong

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BIP 0031: pong message
This commit is contained in:
Jeff Garzik 2012-04-17 08:51:17 -07:00
commit 865a0c1674
6 changed files with 73 additions and 26 deletions
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37
src/main.cpp
View File

@ -2183,7 +2183,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
CAddress addrFrom;
uint64 nNonce = 1;
vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;
if (pfrom->nVersion < 209)
if (pfrom->nVersion < MIN_PROTO_VERSION)
{
// Since February 20, 2012, the protocol is initiated at version 209,
// and earlier versions are no longer supported
@ -2233,7 +2233,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
}
// Get recent addresses
if (pfrom->nVersion >= 31402 || addrman.size() < 1000)
if (pfrom->nVersion >= CADDR_TIME_VERSION || addrman.size() < 1000)
{
pfrom->PushMessage("getaddr");
pfrom->fGetAddr = true;
@ -2250,7 +2250,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
// Ask the first connected node for block updates
static int nAskedForBlocks = 0;
if (!pfrom->fClient &&
(pfrom->nVersion < 32000 || pfrom->nVersion >= 32400) &&
(pfrom->nVersion < NOBLKS_VERSION_START ||
pfrom->nVersion >= NOBLKS_VERSION_END) &&
(nAskedForBlocks < 1 || vNodes.size() <= 1))
{
nAskedForBlocks++;
@ -2292,7 +2293,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
vRecv >> vAddr;
// Don't want addr from older versions unless seeding
if (pfrom->nVersion < 31402 && addrman.size() > 1000)
if (pfrom->nVersion < CADDR_TIME_VERSION && addrman.size() > 1000)
return true;
if (vAddr.size() > 1000)
{
@ -2329,7 +2330,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
multimap<uint256, CNode*> mapMix;
BOOST_FOREACH(CNode* pnode, vNodes)
{
if (pnode->nVersion < 31402)
if (pnode->nVersion < CADDR_TIME_VERSION)
continue;
unsigned int nPointer;
memcpy(&nPointer, &pnode, sizeof(nPointer));
@ -2651,6 +2652,23 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
else if (strCommand == "ping")
{
if (pfrom->nVersion > BIP0031_VERSION)
{
uint64 nonce = 0;
vRecv >> nonce;
// Echo the message back with the nonce. This allows for two useful features:
//
// 1) A remote node can quickly check if the connection is operational
// 2) Remote nodes can measure the latency of the network thread. If this node
// is overloaded it won't respond to pings quickly and the remote node can
// avoid sending us more work, like chain download requests.
//
// The nonce stops the remote getting confused between different pings: without
// it, if the remote node sends a ping once per second and this node takes 5
// seconds to respond to each, the 5th ping the remote sends would appear to
// return very quickly.
pfrom->PushMessage("pong", nonce);
}
}
@ -2813,9 +2831,14 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
if (pto->nVersion == 0)
return true;
// Keep-alive ping
if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty())
// Keep-alive ping. We send a nonce of zero because we don't use it anywhere
// right now.
if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty()) {
if (pto->nVersion > BIP0031_VERSION)
pto->PushMessage("ping", 0);
else
pto->PushMessage("ping");
}
// Resend wallet transactions that haven't gotten in a block yet
ResendWalletTransactions();

4
src/net.h
View File

@ -163,8 +163,8 @@ public:
hSocket = hSocketIn;
vSend.SetType(SER_NETWORK);
vRecv.SetType(SER_NETWORK);
vSend.SetVersion(209);
vRecv.SetVersion(209);
vSend.SetVersion(MIN_PROTO_VERSION);
vRecv.SetVersion(MIN_PROTO_VERSION);
nLastSend = 0;
nLastRecv = 0;
nLastSendEmpty = GetTime();

3
src/protocol.h
View File

@ -80,7 +80,8 @@ class CAddress : public CService
pthis->Init();
if (nType & SER_DISK)
READWRITE(nVersion);
if ((nType & SER_DISK) || (nVersion >= 31402 && !(nType & SER_GETHASH)))
if ((nType & SER_DISK) ||
(nVersion >= CADDR_TIME_VERSION && !(nType & SER_GETHASH)))
READWRITE(nTime);
READWRITE(nServices);
READWRITE(*pip);

3
src/serialize.h
View File

@ -20,6 +20,7 @@
#include <boost/tuple/tuple_io.hpp>
#include "allocators.h"
#include "version.h"
typedef long long int64;
typedef unsigned long long uint64;
@ -29,8 +30,6 @@ class CDataStream;
class CAutoFile;
static const unsigned int MAX_SIZE = 0x02000000;
static const int PROTOCOL_VERSION = 60000;
// Used to bypass the rule against non-const reference to temporary
// where it makes sense with wrappers such as CFlatData or CTxDB
template<typename T>

10
src/version.cpp
View File

@ -11,18 +11,8 @@
const std::string CLIENT_NAME("Satoshi");
// Client version number
#define CLIENT_VERSION_MAJOR 0
#define CLIENT_VERSION_MINOR 6
#define CLIENT_VERSION_REVISION 0
#define CLIENT_VERSION_BUILD 99
#define CLIENT_VERSION_SUFFIX "-beta"
const int CLIENT_VERSION = 1000000 * CLIENT_VERSION_MAJOR
+ 10000 * CLIENT_VERSION_MINOR
+ 100 * CLIENT_VERSION_REVISION
+ 1 * CLIENT_VERSION_BUILD;
// The following part of the code determines the CLIENT_BUILD variable.
// Several mechanisms are used for this:

36
src/version.h
View File

@ -6,9 +6,43 @@
#include <string>
//
// client versioning
//
static const int CLIENT_VERSION_MAJOR = 0;
static const int CLIENT_VERSION_MINOR = 6;
static const int CLIENT_VERSION_REVISION = 0;
static const int CLIENT_VERSION_BUILD = 99;
static const int CLIENT_VERSION =
1000000 * CLIENT_VERSION_MAJOR
+ 10000 * CLIENT_VERSION_MINOR
+ 100 * CLIENT_VERSION_REVISION
+ 1 * CLIENT_VERSION_BUILD;
extern const std::string CLIENT_NAME;
extern const std::string CLIENT_BUILD;
extern const std::string CLIENT_DATE;
extern const int CLIENT_VERSION;
//
// network protocol versioning
//
static const int PROTOCOL_VERSION = 60000;
// earlier versions not supported as of Feb 2012, and are disconnected
static const int MIN_PROTO_VERSION = 209;
// nTime field added to CAddress, starting with this version;
// if possible, avoid requesting addresses nodes older than this
static const int CADDR_TIME_VERSION = 31402;
// only request blocks from nodes outside this range of versions
static const int NOBLKS_VERSION_START = 32000;
static const int NOBLKS_VERSION_END = 32400;
// BIP 0031, pong message, is enabled for all versions AFTER this one
static const int BIP0031_VERSION = 60000;
#endif