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Ping automatically every 2 minutes (unconditionally)

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... instead of after 30 minutes of no sending, for latency measurement
and keep-alive. Also, disconnect if no reply arrives within 20 minutes,
instead of 90 of inactivity (for peers supporting the 'pong' message).
This commit is contained in:
Pieter Wuille 2013-10-15 00:34:20 +02:00
parent 6741837233
commit f1920e8606
3 changed files with 27 additions and 17 deletions
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13
src/main.cpp
View file

@ -4296,8 +4296,8 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
// RPC ping request by user
pingSend = true;
}
if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSendMsg.empty()) {
// Ping automatically sent as a keepalive
if (pto->nPingNonceSent == 0 && pto->nPingUsecStart + PING_INTERVAL * 1000000 < GetTimeMicros()) {
// Ping automatically sent as a latency probe & keepalive.
pingSend = true;
}
if (pingSend) {
@ -4305,15 +4305,14 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
while (nonce == 0) {
RAND_bytes((unsigned char*)&nonce, sizeof(nonce));
}
pto->nPingNonceSent = nonce;
pto->fPingQueued = false;
pto->nPingUsecStart = GetTimeMicros();
if (pto->nVersion > BIP0031_VERSION) {
// Take timestamp as close as possible before transmitting ping
pto->nPingUsecStart = GetTimeMicros();
pto->nPingNonceSent = nonce;
pto->PushMessage("ping", nonce);
} else {
// Peer is too old to support ping command with nonce, pong will never arrive, disable timing
pto->nPingUsecStart = 0;
// Peer is too old to support ping command with nonce, pong will never arrive.
pto->nPingNonceSent = 0;
pto->PushMessage("ping");
}
}

18
src/net.cpp
View file

@ -1028,23 +1028,27 @@ void ThreadSocketHandler()
//
// Inactivity checking
//
if (pnode->vSendMsg.empty())
pnode->nLastSendEmpty = GetTime();
if (GetTime() - pnode->nTimeConnected > 60)
int64_t nTime = GetTime();
if (nTime - pnode->nTimeConnected > 60)
{
if (pnode->nLastRecv == 0 || pnode->nLastSend == 0)
{
LogPrint("net", "socket no message in first 60 seconds, %d %d\n", pnode->nLastRecv != 0, pnode->nLastSend != 0);
pnode->fDisconnect = true;
}
else if (GetTime() - pnode->nLastSend > 90*60 && GetTime() - pnode->nLastSendEmpty > 90*60)
else if (nTime - pnode->nLastSend > TIMEOUT_INTERVAL)
{
LogPrintf("socket not sending\n");
LogPrintf("socket sending timeout: %is\n", nTime - pnode->nLastSend);
pnode->fDisconnect = true;
}
else if (GetTime() - pnode->nLastRecv > 90*60)
else if (nTime - pnode->nLastRecv > (pnode->nVersion > BIP0031_VERSION ? TIMEOUT_INTERVAL : 90*60))
{
LogPrintf("socket inactivity timeout\n");
LogPrintf("socket receive timeout: %is\n", nTime - pnode->nLastRecv);
pnode->fDisconnect = true;
}
else if (pnode->nPingNonceSent && pnode->nPingUsecStart + TIMEOUT_INTERVAL * 1000000 < GetTimeMicros())
{
LogPrintf("ping timeout: %fs\n", 0.000001 * (GetTimeMicros() - pnode->nPingUsecStart));
pnode->fDisconnect = true;
}
}

13
src/net.h
View file

@ -28,6 +28,7 @@
#include <boost/signals2/signal.hpp>
#include <openssl/rand.h>
class CAddrMan;
class CBlockIndex;
class CNode;
@ -36,6 +37,10 @@ namespace boost {
class thread_group;
}
/** Time between pings automatically sent out for latency probing and keepalive (in seconds). */
static const int PING_INTERVAL = 2 * 60;
/** Time after which to disconnect, after waiting for a ping response (or inactivity). */
static const int TIMEOUT_INTERVAL = 20 * 60;
/** The maximum number of entries in an 'inv' protocol message */
static const unsigned int MAX_INV_SZ = 50000;
/** -upnp default */
@ -217,7 +222,6 @@ public:
int64_t nLastSend;
int64_t nLastRecv;
int64_t nLastSendEmpty;
int64_t nTimeConnected;
CAddress addr;
std::string addrName;
@ -273,10 +277,14 @@ public:
CCriticalSection cs_inventory;
std::multimap<int64_t, CInv> mapAskFor;
// Ping time measurement
// Ping time measurement:
// The pong reply we're expecting, or 0 if no pong expected.
uint64_t nPingNonceSent;
// Time (in usec) the last ping was sent, or 0 if no ping was ever sent.
int64_t nPingUsecStart;
// Last measured round-trip time.
int64_t nPingUsecTime;
// Whether a ping is requested.
bool fPingQueued;
CNode(SOCKET hSocketIn, CAddress addrIn, std::string addrNameIn = "", bool fInboundIn=false) : ssSend(SER_NETWORK, INIT_PROTO_VERSION), setAddrKnown(5000)
@ -288,7 +296,6 @@ public:
nLastRecv = 0;
nSendBytes = 0;
nRecvBytes = 0;
nLastSendEmpty = GetTime();
nTimeConnected = GetTime();
addr = addrIn;
addrName = addrNameIn == "" ? addr.ToStringIPPort() : addrNameIn;