bool
Transporter::connect_client(NDB_SOCKET_TYPE sockfd) {
if(m_connected)
return true;
if (sockfd == NDB_INVALID_SOCKET)
return false;
DBUG_ENTER("Transporter::connect_client");
DBUG_PRINT("info",("port %d isMgmConnection=%d",m_s_port,isMgmConnection));
SocketOutputStream s_output(sockfd);
SocketInputStream s_input(sockfd);
// send info about own id
// send info about own transporter type
s_output.println("%d %d", localNodeId, m_type);
// get remote id
int nodeId, remote_transporter_type= -1;
char buf[256];
if (s_input.gets(buf, 256) == 0) {
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
int r= sscanf(buf, "%d %d", &nodeId, &remote_transporter_type);
switch (r) {
case 2:
break;
case 1:
// we're running version prior to 4.1.9
// ok, but with no checks on transporter configuration compatability
break;
default:
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
DBUG_PRINT("info", ("nodeId=%d remote_transporter_type=%d",
nodeId, remote_transporter_type));
if (remote_transporter_type != -1)
{
if (remote_transporter_type != m_type)
{
DBUG_PRINT("error", ("Transporter types mismatch this=%d remote=%d",
m_type, remote_transporter_type));
NDB_CLOSE_SOCKET(sockfd);
g_eventLogger.error("Incompatible configuration: transporter type "
"mismatch with node %d", nodeId);
DBUG_RETURN(false);
}
}
else if (m_type == tt_SHM_TRANSPORTER)
{
g_eventLogger.warning("Unable to verify transporter compatability with node %d", nodeId);
}
{
struct sockaddr_in addr;
SOCKET_SIZE_TYPE addrlen= sizeof(addr);
getpeername(sockfd, (struct sockaddr*)&addr, &addrlen);
m_connect_address= (&addr)->sin_addr;
}
bool res = connect_client_impl(sockfd);
if(res){
m_connected = true;
m_errorCount = 0;
}
DBUG_RETURN(res);
}
bool
Transporter::connect_client(NDB_SOCKET_TYPE sockfd) {
DBUG_ENTER("Transporter::connect_client(sockfd)");
if(m_connected)
{
DBUG_PRINT("error", ("Already connected"));
DBUG_RETURN(true);
}
if (!my_socket_valid(sockfd))
{
DBUG_PRINT("error", ("Socket " MY_SOCKET_FORMAT " is not valid",
MY_SOCKET_FORMAT_VALUE(sockfd)));
DBUG_RETURN(false);
}
DBUG_PRINT("info",("server port: %d, isMgmConnection: %d",
m_s_port, isMgmConnection));
// Send "hello"
DBUG_PRINT("info", ("Sending own nodeid: %d and transporter type: %d",
localNodeId, m_type));
SocketOutputStream s_output(sockfd);
if (s_output.println("%d %d", localNodeId, m_type) < 0)
{
DBUG_PRINT("error", ("Send of 'hello' failed"));
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Read reply
DBUG_PRINT("info", ("Reading reply"));
char buf[256];
SocketInputStream s_input(sockfd);
if (s_input.gets(buf, 256) == 0)
{
DBUG_PRINT("error", ("Failed to read reply"));
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Parse reply
int nodeId, remote_transporter_type= -1;
int r= sscanf(buf, "%d %d", &nodeId, &remote_transporter_type);
switch (r) {
case 2:
break;
case 1:
// we're running version prior to 4.1.9
// ok, but with no checks on transporter configuration compatability
break;
default:
DBUG_PRINT("error", ("Failed to parse reply"));
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
DBUG_PRINT("info", ("nodeId=%d remote_transporter_type=%d",
nodeId, remote_transporter_type));
// Check nodeid
if (nodeId != remoteNodeId)
{
g_eventLogger->error("Connected to wrong nodeid: %d, expected: %d",
nodeId, remoteNodeId);
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Check transporter type
if (remote_transporter_type != -1 &&
remote_transporter_type != m_type)
{
g_eventLogger->error("Connection to node: %d uses different transporter "
"type: %d, expected type: %d",
nodeId, remote_transporter_type, m_type);
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Cache the connect address
my_socket_connect_address(sockfd, &m_connect_address);
if (!connect_client_impl(sockfd))
DBUG_RETURN(false);
m_connected = true;
DBUG_RETURN(true);
}