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/* Copyright 1996,1997,1999,2001,2002,2008,2009 Alain Knaff.
* This file is part of mtools.
*
* Mtools is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Mtools is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Mtools. If not, see <http://www.gnu.org/licenses/>.
*/
#include "sysincludes.h"
#include "msdos.h"
#include "stream.h"
int batchmode = 0;
int flush_stream(Stream_t *Stream)
{
int ret=0;
if(!batchmode) {
if(Stream->Class->flush)
ret |= Stream->Class->flush(Stream);
if(Stream->Next)
ret |= flush_stream(Stream->Next);
}
return ret;
}
Stream_t *copy_stream(Stream_t *Stream)
{
if(Stream)
Stream->refs++;
return Stream;
}
int free_stream(Stream_t **Stream)
{
int ret=0;
if(!*Stream)
return -1;
if(! --(*Stream)->refs){
if((*Stream)->Class->flush)
ret |= (*Stream)->Class->flush(*Stream);
if((*Stream)->Class->freeFunc)
ret |= (*Stream)->Class->freeFunc(*Stream);
if((*Stream)->Next)
ret |= free_stream(&(*Stream)->Next);
Free(*Stream);
} else if ( (*Stream)->Next )
ret |= flush_stream((*Stream)->Next);
*Stream = NULL;
return ret;
}
#define GET_DATA(stream, date, size, type, address) \
(stream)->Class->get_data( (stream), (date), (size), (type), (address) )
int get_data_pass_through(Stream_t *Stream, time_t *date, mt_size_t *size,
int *type, int *address)
{
return GET_DATA(Stream->Next, date, size, type, address);
}
int read_pass_through(Stream_t *Stream, char *buf, mt_off_t start, size_t len)
{
return READS(Stream->Next, buf, start, len);
}
int write_pass_through(Stream_t *Stream, char *buf, mt_off_t start, size_t len)
{
return WRITES(Stream->Next, buf, start, len);
}
doscp_t *get_dosConvert_pass_through(Stream_t *Stream)
{
return GET_DOSCONVERT(Stream->Next);
}
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