/* Added by MP. */
PRIVATE BOOL HTNewsNode_linkRef (HTNewsNode* node, HTNewsNode* referer)
{
if (node && referer) {
node->refChildren++;
node->lastChild = referer;
node->minRefIndex = (node->minRefIndex != 0 ?
HTMIN(node->minRefIndex, referer->index) :
referer->index);
node->maxRefIndex = (node->maxRefIndex != 0 ?
HTMAX(node->maxRefIndex, referer->index) :
referer->index);
node->minRefDate = (node->minRefDate != 0 ?
HTMIN(node->minRefDate, referer->date) :
referer->date);
node->maxRefDate = (node->maxRefDate != 0 ?
HTMAX(node->maxRefDate, referer->date) :
referer->date);
referer->refParent = node;
return YES;
}
return NO;
}
PUBLIC HTStream * HTStreamToChunk (HTRequest * request,
HTChunk ** chunk,
int max_size)
{
if (request) {
HTStream * me;
*chunk = NULL;
if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
HT_OUTOFMEM("HTStreamToChunk");
me->isa = &HTStreamToChunkClass;
me->request = request;
me->max_size = (!max_size) ? max_size : HT_MAXSIZE;
me->chunk = *chunk = HTChunk_new(me->max_size > 0 ?
HTMIN(me->max_size, HT_MAXGROWSIZE) :
HT_MAXGROWSIZE);
HTTRACE(STREAM_TRACE, "ChunkStream. Chunk %p created with max size %d\n" _
me->chunk _ me->max_size);
return me;
}
return HTErrorStream();
}
/*
** Parse through the buffer, identify the headers, and distribute the
** data on the virtual session input streams
*/
PRIVATE int HTDemux_write (HTStream * me, const char * buf, int len)
{
HTMuxChannel * muxch = me->muxch;
int length = 0;
while (len > 0) {
/*
** Look for the next header. If this is the first time through then
** we expect the stream of data to start with a header.
*/
if (!me->next) {
HTMuxHeader header[2];
HTMuxSessionId sid = INVSID;
header[0] = HT_WORDSWAP(*(HTMuxHeader *) buf);
/*
** If the long bit is set then we expect another 32 bits as the
** length of the payload
*/
if (MUX_IS_LONG(header[0])) {
header[1] = HT_WORDSWAP(*(HTMuxHeader *) (buf+1));
me->next = MUX_LONG_ALIGN(header[1]);
buf += 8, len -= 8;
} else {
me->next = MUX_ALIGN(MUX_GET_LEN(header[0]));
buf += 4, len -= 4;
}
length = HTMIN(len, me->next);
sid = MUX_GET_SID(header[0]);
HTTRACE(MUX_TRACE, "Demux stream Header: %x, sid %d, length %d\n" _ header[0] _ length _ sid);
/*
** If this is a control message then handle it here
*/
if (header[0] & MUX_CONTROL) {
if (header[0] & MUX_STRING) {
; /* Define the string */
} else if (header[0] & MUX_STACK) {
; /* Define the stack */
} else if (header[0] & MUX_FRAGMENT) {
HTMuxSession_setFragment(muxch, sid, MUX_GET_LEN(header[0]));
} else if (header[0] & MUX_CREDIT) {
HTMuxSession_setCredit(muxch, sid, header[1]);
}
} else if (header[0] & MUX_SYN) {
me->session = HTMuxSession_register(muxch, sid, MUX_GET_PID(header[0]));
} else if (header[0] & MUX_FIN) {
me->session = HTMuxChannel_findSession(muxch, sid);
HTMuxSession_setClose(me->muxch, me->session, MUX_S_END_READ);
} else
me->session = HTMuxChannel_findSession(muxch, sid);
}
/*
** If there is data on this session then handle it here.
*/
if (me->next && me->session) {
if (HTMuxSession_disposeData(me->session, buf, length) == 1) {
HTMuxChannel_sendControl(muxch, HTMuxSession_id(me->session),
MUX_CREDIT, DEFAULT_CREDIT, NULL, 0);
}
}
buf += length, len -= length, me->next -= length;
}
return HT_OK;
}