From 6a60c64c6b4c6a8095e12b515fc7e30eedfab5ab Mon Sep 17 00:00:00 2001 From: Gregory Maxwell Date: Tue, 28 Aug 2012 22:04:38 -0400 Subject: [PATCH] Don't retry a failing IRC nickname forever. If our IRC nick is in use (because some other node thinks it has the same address we think we have) don't fruitlessly try to reconnect using that name forever. After three tries, give up and use a random nick. Either we'll learn a new local address from IRC and switch to that, or it was right and the other guy is advertising for us. This avoids a pessimal case where a second testnet node behind a nat is unable to get any peers because he can't get on IRC. --- src/irc.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/irc.cpp b/src/irc.cpp index 9e88541c2a156..6991e6ee7e704 100644 --- a/src/irc.cpp +++ b/src/irc.cpp @@ -222,6 +222,7 @@ void ThreadIRCSeed2(void* parg) printf("ThreadIRCSeed started\n"); int nErrorWait = 10; int nRetryWait = 10; + int nNameRetry = 0; while (!fShutdown) { @@ -257,7 +258,8 @@ void ThreadIRCSeed2(void* parg) CService addrLocal; string strMyName; // Don't use our IP as our nick if we're not listening - if (!fNoListen && GetLocal(addrLocal, &addrIPv4)) + // or if it keeps failing because the nick is already in use. + if (!fNoListen && GetLocal(addrLocal, &addrIPv4) && nNameRetry<3) strMyName = EncodeAddress(GetLocalAddress(&addrConnect)); if (strMyName == "") strMyName = strprintf("x%u", GetRand(1000000000)); @@ -273,6 +275,7 @@ void ThreadIRCSeed2(void* parg) if (nRet == 2) { printf("IRC name already in use\n"); + nNameRetry++; Wait(10); continue; } @@ -282,6 +285,7 @@ void ThreadIRCSeed2(void* parg) else return; } + nNameRetry = 0; Sleep(500); // Get our external IP from the IRC server and re-nick before joining the channel