Create TCPSession2 for outpubound connections.

TCPSocket.cpp

@@ -2,6 +2,7 @@
 #include "EPoll.h"
 #include "Log.h"
 #include "Exception.h"
+#include "errno.h"
 
 namespace core {
 
@@ -14,7 +15,8 @@ namespace core {
    void TCPSocket::connect(IPAddress &address) {
       setDescriptor(socket(AF_INET, SOCK_STREAM, 0));
       if(::connect(getDescriptor(), (struct sockaddr *)&address.addr, address.addressLength) == -1)
-        throw coreutils::Exception("Error on connect to TCP socket.");
+        throw coreutils::Exception("Error on connect to TCP socket." + errno);
+      coreutils::Log(coreutils::LOG_DEBUG_3) << "Connected to IP..." << address.getClientAddressAndPort();
    }
 
    void TCPSocket::output(std::stringstream &out) {