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// $Id$
#include "ECG_Simple_Mcast_EH.h"
#include "ace/Log_Msg.h"
#include "ace/Reactor.h"
#include "ace/os_include/os_fcntl.h"
TAO_ECG_Simple_Mcast_EH::TAO_ECG_Simple_Mcast_EH (TAO_ECG_Dgram_Handler *recv)
: receiver_ (recv)
{
ACE_ASSERT (this->receiver_);
}
TAO_ECG_Simple_Mcast_EH::~TAO_ECG_Simple_Mcast_EH (void)
{
}
int
TAO_ECG_Simple_Mcast_EH::open (const char * mcast_addr,
const ACE_TCHAR *net_if)
{
// Check that we haven't been closed already.
if (!this->receiver_)
return -1;
if (mcast_addr == 0)
return -1;
ACE_INET_Addr mcast_group;
if (mcast_group.set (mcast_addr) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to open mcast handler: "
"error using specified address %s "
"in ACE_INET.set ().\n",
mcast_addr),
-1);
if (this->dgram_.subscribe (mcast_group, 1, net_if) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to open mcast handler: error "
"subscribing to %s\n",
mcast_addr),
-1);
(void) dgram_.enable(ACE_NONBLOCK);
if (!this->reactor ()
|| 0 != this->reactor ()->register_handler (this->dgram_.get_handle (),
this,
ACE_Event_Handler::READ_MASK))
{
this->dgram_.close ();
ACE_ERROR_RETURN ((LM_ERROR,
"Cannot register handler with reactor.\n"),
-1);
}
return 0;
}
int
TAO_ECG_Simple_Mcast_EH::shutdown (void)
{
// Already shut down.
if (!this->receiver_)
return -1;
int result = 0;
if (this->reactor ())
{
result = this->reactor ()->remove_handler (this->dgram_.get_handle (),
ACE_Event_Handler::READ_MASK);
}
if (result != 0)
ACE_ERROR ((LM_ERROR,
"Unable to deregister handler from reactor "
"on shutdown.\n"));
result = this->dgram_.close ();
if (result != 0)
ACE_ERROR ((LM_ERROR,
"Unable to close mcast receiving dgram "
"on shutdown.\n"));
this->receiver_ = 0;
return result;
}
int
TAO_ECG_Simple_Mcast_EH::handle_input (ACE_HANDLE /* fd */)
{
return this->receiver_->handle_input (this->dgram_);
}
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