size_t wswcurl_read( wswcurl_req *req, void *buffer, size_t size ) {
size_t written = 0;
chained_buffer_t *cb;
if( ( req->rxreceived - req->rxreturned ) < ( size + WMINBUFFERING ) && req->paused ) {
wswcurl_unpause( req );
}
// hmm, signal an error?
if( req->status < 0 ) {
return 0;
}
// go through the buffers in chain, dropping them if not needed
// start from the beginning (chronological order)
cb = req->bhead;
while( cb && written < size ) {
size_t numb = cb->rxsize - cb->rxoffset;
if( numb + written > size ) {
numb = size - written;
}
if( !numb ) {
break;
}
if( req->ignore_bytes >= numb ) {
req->ignore_bytes -= numb;
cb->rxoffset += numb;
goto advance;
} else {
cb->rxoffset += req->ignore_bytes;
req->ignore_bytes = 0;
}
memcpy( ( (char*)buffer ) + written, cb->data + cb->rxoffset, numb );
written += numb;
cb->rxoffset += numb;
advance:
if( cb->rxoffset >= cb->rxsize ) {
// flush the buffer away
req->bhead = cb->next;
if( req->btail == cb ) {
req->btail = NULL;
}
WFREE( cb );
// advance to the next buffer in chain
cb = req->bhead;
}
// else break;
}
if( written < size ) {
( (char*)buffer )[written] = '\0';
}
req->rxreturned += written;
return written;
}
size_t wswcurl_read(wswcurl_req *req, void *buffer, size_t size)
{
size_t written = 0;
chained_buffer_t *cb;
if( (req->rxreceived-req->rxreturned) < (size+WMINBUFFERING) && req->paused )
wswcurl_unpause(req);
#if 0
// Make sure we have data in buffer
while ( req->status >= 0 && req->status != WSTATUS_FINISHED && req->status != WSTATUS_QUEUED && (req->rxreceived-req->rxreturned) < size ) {
CURLDBG((" CURL BLOCKING READ LOOP\n"));
wswcurl_perform_single (req);
}
#endif
// hmm, signal an error?
if( req->status < 0 )
return 0;
// go through the buffers in chain, dropping them if not needed
// start from the beginning (chronological order)
cb = req->bhead;
while( cb && written < size )
{
size_t numb = cb->rxsize - cb->rxoffset;
if( numb + written > size )
numb = size - written;
if( !numb )
break;
if( req->ignore_bytes >= numb ) {
req->ignore_bytes -= numb;
cb->rxoffset += numb;
continue;
}
else {
cb->rxoffset += req->ignore_bytes;
req->ignore_bytes = 0;
}
memcpy( ((char*)buffer)+written, cb->data+cb->rxoffset, numb );
written += numb;
cb->rxoffset += numb;
if( cb->rxoffset >= cb->rxsize )
{
// flush the buffer away
req->bhead = cb->next;
if( req->btail == cb )
req->btail = NULL;
WFREE( cb );
// advance to the next buffer in chain
cb = req->bhead;
}
// else break;
}
if( written < size )
((char*)buffer)[written] = '\0';
req->rxreturned += written;
#if 0
if( req->paused)
Com_Printf(S_COLOR_RED "%d - ", req->rxreturned - req->rxreceived);
else
Com_Printf(S_COLOR_CYAN "%d - ", req->rxreturned - req->rxreceived);
#endif
return written;
}
