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"pong" handler.

This commit is contained in:
Christopher Jeffrey 2014-10-22 15:54:45 -07:00
parent ddaa6b2698
commit 94ef4f3948
1 changed files with 62 additions and 1 deletions
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63
src/bitcoindjs.cc
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@ -3399,6 +3399,7 @@ NAN_METHOD(HookPackets) {
o->Set(NanNew<String>("received"), NanNew<Number>((int64_t)cur->nTimeReceived));
o->Set(NanNew<String>("peerId"), NanNew<Number>(pfrom->id));
//o->Set(NanNew<String>("peerId"), NanNew<Number>(pfrom->GetId()));
// pfrom->cleanSubVer, // string
if (strCommand == "version") {
#if 0
@ -3641,7 +3642,67 @@ NAN_METHOD(HookPackets) {
o->Set(NanNew<String>("nonce"), NanNew<String>("0"));
}
} else if (strCommand == "pong") {
;
int64_t pingUsecEnd = nTimeReceived;
uint64_t nonce = 0;
size_t nAvail = vRecv.in_avail();
bool bPingFinished = false;
std::string sProblem;
if (nAvail >= sizeof(nonce)) {
cur->vRecv >> nonce;
// Only process pong message if there is an outstanding ping (old ping without nonce should never pong)
if (pfrom->nPingNonceSent != 0) {
if (nonce == pfrom->nPingNonceSent) {
// Matching pong received, this ping is no longer outstanding
bPingFinished = true;
int64_t pingUsecTime = pingUsecEnd - pfrom->nPingUsecStart;
if (pingUsecTime > 0) {
// Successful ping time measurement, replace previous
;
} else {
// This should never happen
sProblem = "Timing mishap";
}
} else {
// Nonce mismatches are normal when pings are overlapping
sProblem = "Nonce mismatch";
if (nonce == 0) {
// This is most likely a bug in another implementation somewhere, cancel this ping
bPingFinished = true;
sProblem = "Nonce zero";
}
}
} else {
sProblem = "Unsolicited pong without ping";
}
} else {
// This is most likely a bug in another implementation somewhere, cancel this ping
bPingFinished = true;
sProblem = "Short payload";
}
char sNonce[21] = {0};
int written = snprintf(sNonce, sizeof(sNonce), "%020lu", (uint64_t)nonce);
assert(written == 20);
char sPingNonceSent[21] = {0};
written = snprintf(sPingNonceSent, sizeof(sPingNonceSent), "%020lu", (uint64_t)pfrom->nPingNonceSent);
assert(written == 20);
o->Set(NanNew<String>("expected"), NanNew<String>(sPingNonceSent));
o->Set(NanNew<String>("received"), NanNew<String>(sNonce));
o->Set(NanNew<String>("bytes"), NanNew<Number>((unsigned int)nAvail));
if (!(sProblem.empty())) {
o->Set(NanNew<String>("problem"), NanNew<String>(sProblem));
}
if (bPingFinished) {
o->Set(NanNew<String>("finished"), NanNew<Boolean>(true));
} else {
o->Set(NanNew<String>("finished"), NanNew<Boolean>(false));
}
} else if (strCommand == "alert") {
;
} else if (strCommand == "filterload") {