int
TAO_ECG_Mcast_EH::delete_unwanted_subscriptions (
Address_Set& multicast_addresses)
{
for (size_t i = 0; i < this->subscriptions_.size (); ++i)
{
ACE_INET_Addr multicast_group = this->subscriptions_[i].mcast_addr;
if (multicast_addresses.find (multicast_group))
{
// Remove from the list of subscriptions to be added,
// because we already subscribe to it...
(void) multicast_addresses.remove (multicast_group);
continue;
}
// This subscription is no longer needed - remove from reactor,
// close and delete the socket.
ACE_SOCK_Dgram_Mcast *socket = this->subscriptions_[i].dgram;
(void) this->reactor ()->remove_handler (socket->get_handle (),
ACE_Event_Handler::READ_MASK);
(void) socket->close();
delete socket;
// Move the deleted subscription out of the <subscriptions_>
// array by moving the last subscription in array into its place.
this->subscriptions_[i] =
this->subscriptions_[this->subscriptions_.size () - 1];
this->subscriptions_.size (this->subscriptions_.size () - 1);
--i;
}
return 0;
}
void
TAO_ECG_Mcast_EH::add_new_subscriptions (Address_Set& multicast_addresses)
{
typedef ACE_Unbounded_Set_Iterator<ACE_INET_Addr> Address_Iterator;
for (Address_Iterator k = multicast_addresses.begin ();
k != multicast_addresses.end ();
++k)
{
Subscription new_subscription;
new_subscription.mcast_addr = *k;
ACE_NEW (new_subscription.dgram, ACE_SOCK_Dgram_Mcast);
size_t const subscriptions_size = this->subscriptions_.size ();
this->subscriptions_.size (subscriptions_size + 1);
this->subscriptions_[subscriptions_size] = new_subscription;
ACE_SOCK_Dgram_Mcast *socket = new_subscription.dgram;
if (socket->open (new_subscription.mcast_addr, this->net_if_, 1) == -1) {
ORBSVCS_ERROR ((LM_ERROR,
"Error: %d - Unable to open multicast socket\n",
ACE_ERRNO_GET));
}
if ( socket->enable (ACE_NONBLOCK) != 0 ) {
ORBSVCS_ERROR ((LM_ERROR,
"Error: %d - Unable to enable nonblocking on mcast_eh\n",
ACE_ERRNO_GET));
}
if (socket->join (new_subscription.mcast_addr, 1, this->net_if_) == -1) {
ORBSVCS_ERROR ((LM_ERROR,
"Error: %d - Unable to join multicast group\n",
ACE_ERRNO_GET));
}
if (this->recvbuf_size_ != 0
&& (((ACE_SOCK_Dgram *)socket)->set_option(SOL_SOCKET,
SO_RCVBUF,
(void *) &this->recvbuf_size_,
sizeof (this->recvbuf_size_)) == -1)
&& errno != ENOTSUP )
{
ORBSVCS_ERROR ((LM_ERROR,
"Error: %d - Unable to set mcast_eh recvbuf_size:%d\n",
ACE_ERRNO_GET,
this->recvbuf_size_));
}
(void) this->reactor ()->register_handler (
socket->get_handle (),
this,
ACE_Event_Handler::READ_MASK);
}
}
int
TAO_ECG_Mcast_EH::handle_input (ACE_HANDLE fd)
{
size_t const subscriptions_size = this->subscriptions_.size ();
for (size_t i = 0; i != subscriptions_size; ++i)
{
ACE_SOCK_Dgram_Mcast *socket = this->subscriptions_[i].dgram;
if (socket->get_handle () == fd)
{
return this->receiver_->handle_input (*socket);
}
}
return -1;
}