/* write data using stream structure
*/
long hb_znetWrite( PHB_ZNETSTREAM pStream, HB_SOCKET sd, const void * buffer, long len, HB_MAXINT timeout, long * plast )
{
long snd = 0;
pStream->wr.next_in = ( Bytef * ) buffer;
pStream->wr.avail_in = ( uInt ) len;
pStream->err = Z_OK;
while( pStream->wr.avail_in )
{
if( pStream->wr.avail_out == 0 )
{
snd = hb_znetStreamWrite( pStream, sd, timeout );
if( plast )
*plast = snd;
if( snd <= 0 )
break;
snd = 0;
}
pStream->err = deflate( &pStream->wr, Z_NO_FLUSH );
if( pStream->err != Z_OK )
break;
}
len -= pStream->wr.avail_in;
return len == 0 ? snd : len;
}
/* flush data in stream structure - return number of bytes left in the
* buffer which were not sent
*/
long hb_znetFlush( PHB_ZNETSTREAM pStream, HB_SOCKET sd, HB_MAXINT timeout,
HB_BOOL fSync )
{
uInt uiSize = HB_ZNET_BUFSIZE - ( pStream->crypt ? 2 : 0 );
if( fSync && pStream->wr.avail_out == uiSize &&
pStream->wr.total_in == 0 && pStream->wr.total_out == 0 )
return 0;
if( pStream->wr.avail_out > 0 )
pStream->err = deflate( &pStream->wr,
fSync ? Z_FULL_FLUSH : Z_PARTIAL_FLUSH );
else
pStream->err = Z_OK;
while( pStream->wr.avail_out < uiSize )
{
if( hb_znetStreamWrite( pStream, sd, timeout ) <= 0 )
break;
if( pStream->err == Z_OK || pStream->err == Z_BUF_ERROR )
pStream->err = deflate( &pStream->wr,
fSync ? Z_FULL_FLUSH : Z_PARTIAL_FLUSH );
}
if( pStream->err == Z_BUF_ERROR )
pStream->err = Z_OK;
if( pStream->err != Z_OK )
hb_socketSetError( HB_ZNET_SOCK_ERROR_BASE - pStream->err );
return uiSize - pStream->wr.avail_out;
}
/* flush data in stream structure - return number of bytes left in the
* buffer which were not sent
*/
long hb_znetFlush( PHB_ZNETSTREAM pStream, HB_SOCKET sd, HB_MAXINT timeout )
{
uInt uiSize = HB_ZNET_BUFSIZE - ( pStream->crypt ? 2 : 0 );
if( pStream->wr.avail_out > 0 )
pStream->err = deflate( &pStream->wr, Z_PARTIAL_FLUSH );
else
pStream->err = Z_OK;
while( pStream->wr.avail_out < uiSize )
{
if( hb_znetStreamWrite( pStream, sd, timeout ) <= 0 )
break;
if( pStream->err == Z_OK )
pStream->err = deflate( &pStream->wr, Z_PARTIAL_FLUSH );
}
return uiSize - pStream->wr.avail_out;
}
/* write data using stream structure
*/
long hb_znetWrite( PHB_ZNETSTREAM pStream, HB_SOCKET sd, const void * buffer, long len, HB_MAXINT timeout, long * plast )
{
long snd = 0;
pStream->wr.next_in = ( Bytef * ) HB_UNCONST( buffer );
pStream->wr.avail_in = ( uInt ) len;
pStream->err = Z_OK;
while( pStream->wr.avail_in )
{
if( pStream->wr.avail_out == 0 )
{
snd = hb_znetStreamWrite( pStream, sd, timeout );
if( plast )
*plast = snd;
if( snd <= 0 )
break;
snd = 0;
}
pStream->err = deflate( &pStream->wr, Z_NO_FLUSH );
if( pStream->err != Z_OK )
{
if( pStream->err == Z_BUF_ERROR )
pStream->err = Z_OK;
else
{
hb_socketSetError( HB_ZNET_SOCK_ERROR_BASE - pStream->err );
snd = -1;
}
break;
}
}
len -= pStream->wr.avail_in;
return len == 0 ? snd : len;
}
