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// $Id$
#include "IOR_Multicast.h"
#include "ace/SOCK_Connector.h"
ACE_RCSID(orbsvcs, IOR_Multicast, "$Id$")
ACE_HANDLE
TAO_IOR_Multicast::get_handle (void) const
{
return this->mcast_dgram_.get_handle ();
}
TAO_IOR_Multicast::TAO_IOR_Multicast (void)
: service_id_ ((TAO_Service_ID) 0),
ior_ (0)
{
}
TAO_IOR_Multicast::TAO_IOR_Multicast (const char *ior,
u_short port,
const char *mcast_addr,
TAO_Service_ID service_id)
{
if (this->init (ior,
port,
mcast_addr,
service_id) == -1)
ACE_ERROR ((LM_ERROR,
ASYS_TEXT ("%p\n"),
ASYS_TEXT ("TAO_IOR_Multicast")));
}
// destructor
TAO_IOR_Multicast::~TAO_IOR_Multicast (void)
{
this->mcast_dgram_.unsubscribe ();
}
int
TAO_IOR_Multicast::init (const char *ior,
u_short port,
const char *mcast_addr,
TAO_Service_ID service_id)
{
this->service_id_ = service_id;
this->mcast_addr_.set (port, mcast_addr);
this->ior_ = ior;
this->response_addr_.set ((u_short) 0);
this->response_.open (this->response_addr_);
// Use ACE_SOCK_Dgram_Mcast factory to subscribe to multicast group.
if (this->mcast_dgram_.subscribe (this->mcast_addr_) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"%p\n",
"subscribe"),
-1);
return 0;
}
int
TAO_IOR_Multicast::handle_timeout (const ACE_Time_Value &,
const void *)
{
return 0;
}
int
TAO_IOR_Multicast::handle_input (ACE_HANDLE)
{
ACE_DEBUG ((LM_DEBUG, "TAO_IOR_Multicast::Handle_input\n"));
// The length of the service name string that follows.
CORBA::Short header;
// Port to which to reply.
ACE_UINT16 remote_port;
// Name of the service for which the client is looking.
char service_name[BUFSIZ];
ACE_INET_Addr remote_addr;
// Take a peek at the header to find out how long is the service
// name string we should receive.
ssize_t n = this->mcast_dgram_.recv (&header,
sizeof(header),
remote_addr,
MSG_PEEK);
if (n <= 0)
ACE_ERROR_RETURN ((LM_ERROR,
"TAO_IOR_Multicast::handle_input - peek %d\n",
n),
0);
else if (ACE_NTOHS (header) <= 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Header value < 1\n"),
0);
// Receive full client multicast request.
const int iovcnt = 3;
iovec iov[iovcnt];
iov[0].iov_base = (char *) &header;
iov[0].iov_len = sizeof(header);
iov[1].iov_base = (char *) &remote_port;
iov[1].iov_len = sizeof (ACE_UINT16);
iov[2].iov_base = (char *) service_name;
iov[2].iov_len = ACE_NTOHS (header);
// Read the iovec.
n = this->mcast_dgram_.recv (iov,
iovcnt,
remote_addr);
if (n <= 0)
ACE_ERROR_RETURN ((LM_ERROR,
"TAO_IOR_Multicast::handle_input recv = %d\n",
n),
0);
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) Received multicast.\n"
"Service Name received : %s\n"
"Port received : %u\n",
service_name,
ACE_NTOHS (remote_port)));
// Our reply data.
ACE_CString ior (this->ior_);
if (ACE_OS::strcmp (service_name,
"NameService") != 0
&& ACE_OS::strcmp (service_name,
"TradingService") != 0)
{
// The client has requested an IOR other than for the
// Name/Trading Service. Lookup the table for the IOR. The call
// to find_ior will fill the ior for us if the service name is
// found in the table.
ACE_CString service (service_name);
if (this->ior_lookup_table_.find_ior (service, ior) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"IOR_Multicast::find failed.\n"),
0);
}
// Reply to the multicast message.
ACE_SOCK_Connector connector;
ACE_INET_Addr peer_addr (ACE_NTOHS (remote_port),
remote_addr.get_host_name ());
ACE_SOCK_Stream stream;
// Connect.
if (connector.connect (stream,
peer_addr) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"IOR_Multicast::connect failed\n"),
0);
// Send the IOR back to the client. (Send iovec, which contains ior
// length as the first element, and ior itself as the second.)
// Length of ior to be sent.
CORBA::Short data_len =
ACE_HTONS (ior.length () + 1);
// Vector to be sent.
const int cnt = 2;
iovec iovp[cnt];
// The length of ior to be sent.
iovp[0].iov_base = (char *) &data_len;
iovp[0].iov_len = sizeof (CORBA::Short);
// The ior.
iovp[1].iov_base = ACE_const_cast (char*, ior.c_str ());
iovp[1].iov_len = ior.length () + 1;
ssize_t result = stream.sendv_n (iovp,
cnt);
// Close the stream.
stream.close ();
// Check for error.
if (result == -1)
return 0;
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) ior_: <%s>\n"
"sent to %s:%u.\n"
"result from send = %d\n",
ior.c_str (),
peer_addr.get_host_name (),
peer_addr.get_port_number (),
result));
return 0;
}
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