static _TemplateLinkData *
_TemplateLinkData_Create()
{
_TemplateLinkData *linkData = parcMemory_AllocateAndClear(sizeof(_TemplateLinkData));
assertNotNull(linkData, "Could not create private data for new link");
// Any identity name can be used as long as it's guaranteed to be unique.
// Typically, we use some identifying attribute of the link (such as its sockaddr info)
// In this case we're using the current time.
CCNxTimeStamp *timeStamp = ccnxTimeStamp_CreateFromCurrentUTCTime();
char *timeString = ccnxTimeStamp_ToString(timeStamp);
ccnxTimeStamp_Release(&timeStamp);
linkData->linkIdentity = parcMemory_StringDuplicate(timeString, strlen(timeString));
parcMemory_Deallocate(&timeString);
linkData->queue = parcDeque_Create();
return linkData;
}
static void
_demuxDelivery(AthenaTransportLink *athenaTransportLink, CCNxMetaMessage *ccnxMetaMessage, struct sockaddr_in *peerAddress, socklen_t peerAddressLength)
{
struct _UDPLinkData *linkData = athenaTransportLink_GetPrivateData(athenaTransportLink);
AthenaTransportLink *demuxLink = parcHashCodeTable_Get(linkData->multiplexTable, (void *) _hashAddress(peerAddress));
// If it's an unknown peer, try to create a new link
if (demuxLink == NULL) {
_UDPLinkData *newLinkData = _UDPLinkData_Create();
// We use our parents fd to send, and receive demux'd messages from our parent on our queue
newLinkData->fd = dup(linkData->fd);
newLinkData->queue = parcDeque_Create();
assertNotNull(newLinkData->queue, "Could not create data queue for new link");
newLinkData->link.myAddressLength = linkData->link.myAddressLength;
memcpy(&newLinkData->link.myAddress, &linkData->link.myAddress, linkData->link.myAddressLength);
newLinkData->link.peerAddressLength = peerAddressLength;
memcpy(&newLinkData->link.peerAddress, peerAddress, peerAddressLength);
demuxLink = _newLink(athenaTransportLink, newLinkData);
if (demuxLink) {
parcHashCodeTable_Add(linkData->multiplexTable, (void *) _hashAddress(peerAddress), demuxLink);
}
}
// If there's no existing link and a new one can't be created, drop the message
if (demuxLink == NULL) {
ccnxMetaMessage_Release(&ccnxMetaMessage);
return;
}
_queueMessage(demuxLink, ccnxMetaMessage);
}
