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// $Id$
#include "RMCast_UDP_Proxy.h"
#include "RMCast_Module.h"
#include "ace/Message_Block.h"
#if !defined (__ACE_INLINE__)
# include "RMCast_UDP_Proxy.i"
#endif /* ! __ACE_INLINE__ */
ACE_RCSID(ace, RMCast_UDP_Proxy, "$Id$")
ACE_RMCast_UDP_Proxy::ACE_RMCast_UDP_Proxy (ACE_RMCast_IO_UDP *io_udp,
const ACE_INET_Addr &addr,
ACE_RMCast_Module *module)
: io_udp_ (io_udp)
, peer_addr_ (addr)
, module_ (module)
{
}
ACE_RMCast_UDP_Proxy::~ACE_RMCast_UDP_Proxy (void)
{
}
int
ACE_RMCast_UDP_Proxy::receive_message (char *buffer, size_t size)
{
int type = buffer[0];
// @@ What should we do with invalid messages like this?
//
if (type < 0 || type >= ACE_RMCast::MT_LAST)
return 0;
if (type == ACE_RMCast::MT_POLL)
{
ACE_RMCast::Poll poll;
return this->module ()->poll (poll);
}
else if (type == ACE_RMCast::MT_ACK_JOIN)
{
ACE_RMCast::Ack_Join ack_join;
const size_t header_size = 1 + sizeof(ACE_UINT32);
if (size < header_size)
{
// The message is too small
return 0;
}
ACE_UINT32 tmp;
ACE_OS::memcpy (&tmp, buffer + 1,
sizeof(tmp));
ack_join.next_sequence_number = ACE_NTOHL (tmp);
return this->module ()->ack_join (ack_join);
}
else if (type == ACE_RMCast::MT_ACK_LEAVE)
{
ACE_RMCast::Ack_Leave ack_leave;
return this->module ()->ack_leave (ack_leave);
}
else if (type == ACE_RMCast::MT_DATA)
{
ACE_RMCast::Data data;
const size_t header_size = 1 + 3 * sizeof(ACE_UINT32);
if (size < header_size)
{
// The message is too small
return 0;
}
ACE_UINT32 tmp;
ACE_OS::memcpy (&tmp, buffer + 1,
sizeof(tmp));
data.sequence_number = ACE_NTOHL (tmp);
ACE_OS::memcpy (&tmp, buffer + 1 + sizeof(tmp),
sizeof(tmp));
data.total_size = ACE_NTOHL (tmp);
ACE_OS::memcpy (&tmp, buffer + 1 + 2 * sizeof(tmp),
sizeof(tmp));
data.fragment_offset = ACE_NTOHL (tmp);
// Pass it up the module...
ACE_Message_Block *mb;
ACE_NEW_RETURN (mb, ACE_Message_Block, -1);
mb->size (size - header_size);
mb->copy (buffer + header_size, size - header_size);
data.payload = mb;
return this->module ()->data (data);
}
else if (type == ACE_RMCast::MT_JOIN)
{
ACE_RMCast::Join join;
return this->module ()->join (join);
}
else if (type == ACE_RMCast::MT_LEAVE)
{
ACE_RMCast::Leave leave;
return this->module ()->leave (leave);
}
else if (type == ACE_RMCast::MT_ACK)
{
ACE_RMCast::Ack ack;
const size_t header_size = 1 + sizeof(ACE_UINT32);
if (size < header_size)
{
// The message is too small
return 0;
}
ACE_UINT32 tmp;
ACE_OS::memcpy (&tmp, buffer + 1,
sizeof(tmp));
ack.highest_in_sequence = ACE_NTOHL (tmp);
ACE_OS::memcpy (&tmp, buffer + 1 + sizeof(ACE_UINT32),
sizeof(tmp));
ack.highest_received = ACE_NTOHL (tmp);
return this->module ()->ack (ack);
}
return 0;
}
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