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net: Move IsSelectableSocket check into socket creation

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We use select in ConnectSocketDirectly, so this check needs to happen before
that.

IsSelectableSocket will not be relevant after upcoming changes to remove select.
This commit is contained in:
Cory Fields 2017-10-02 14:18:32 -04:00
parent 1729c29ded
commit 9e3b2f576b
2 changed files with 17 additions and 16 deletions
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27
src/net.cpp
View File

@ -446,24 +446,19 @@ CNode* CConnman::ConnectNode(CAddress addrConnect, const char *pszDest, bool fCo
SplitHostPort(std::string(pszDest), port, host); SplitHostPort(std::string(pszDest), port, host);
connected = ConnectThroughProxy(proxy, host, port, hSocket, nConnectTimeout, nullptr); connected = ConnectThroughProxy(proxy, host, port, hSocket, nConnectTimeout, nullptr);
} }
if (connected) { if (!connected) {
if (!IsSelectableSocket(hSocket)) { CloseSocket(hSocket);
LogPrintf("Cannot create connection: non-selectable socket created (fd >= FD_SETSIZE ?)\n"); return nullptr;
CloseSocket(hSocket);
return nullptr;
}
// Add node
NodeId id = GetNewNodeId();
uint64_t nonce = GetDeterministicRandomizer(RANDOMIZER_ID_LOCALHOSTNONCE).Write(id).Finalize();
CAddress addr_bind = GetBindAddress(hSocket);
CNode* pnode = new CNode(id, nLocalServices, GetBestHeight(), hSocket, addrConnect, CalculateKeyedNetGroup(addrConnect), nonce, addr_bind, pszDest ? pszDest : "", false);
pnode->AddRef();
return pnode;
} }
return nullptr; // Add node
NodeId id = GetNewNodeId();
uint64_t nonce = GetDeterministicRandomizer(RANDOMIZER_ID_LOCALHOSTNONCE).Write(id).Finalize();
CAddress addr_bind = GetBindAddress(hSocket);
CNode* pnode = new CNode(id, nLocalServices, GetBestHeight(), hSocket, addrConnect, CalculateKeyedNetGroup(addrConnect), nonce, addr_bind, pszDest ? pszDest : "", false);
pnode->AddRef();
return pnode;
} }
void CConnman::DumpBanlist() void CConnman::DumpBanlist()

6
src/netbase.cpp
View File

@ -465,6 +465,12 @@ SOCKET CreateSocket(const CService &addrConnect)
if (hSocket == INVALID_SOCKET) if (hSocket == INVALID_SOCKET)
return INVALID_SOCKET; return INVALID_SOCKET;
if (!IsSelectableSocket(hSocket)) {
CloseSocket(hSocket);
LogPrintf("Cannot create connection: non-selectable socket created (fd >= FD_SETSIZE ?)\n");
return INVALID_SOCKET;
}
#ifdef SO_NOSIGPIPE #ifdef SO_NOSIGPIPE
int set = 1; int set = 1;
// Different way of disabling SIGPIPE on BSD // Different way of disabling SIGPIPE on BSD