81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/* Copyright 1996-1999,2001,2002,2005,2006,2008,2009 Alain Knaff.
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* Copyright 2010 Volker Lanz (vl@fidra.de)
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* This file is part of mtools.
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*
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* Mtools is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Mtools is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Mtools. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MTOOLS_STREAM_H
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#define MTOOLS_STREAM_H
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#include <time.h>
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#include <sys/types.h>
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struct doscp_t;
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union bootsector;
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struct device;
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struct Stream_t
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{
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struct Class_t *Class;
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int refs;
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struct Stream_t *Next;
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struct Stream_t *Buffer;
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};
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struct doscp_t *get_dosConvert_pass_through(struct Stream_t *Stream);
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struct Class_t
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{
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int (*read)(struct Stream_t *, char *, off_t, size_t);
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int (*write)(struct Stream_t *, char *, off_t, size_t);
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int (*flush)(struct Stream_t *);
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int (*freeFunc)(struct Stream_t *);
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int (*set_geom)(struct Stream_t *, struct device *, struct device *, int media, union bootsector *);
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int (*get_data)(struct Stream_t *, time_t *, size_t *, int *, int *);
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int (*pre_allocate)(struct Stream_t *, size_t);
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struct doscp_t *(*get_dosConvert)(struct Stream_t *);
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};
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#define READS(stream, buf, address, size) \
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((stream)->Class->read)( (stream), (char *) (buf), (address), (size) )
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#define WRITES(stream, buf, address, size) \
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((stream)->Class->write)( (stream), (char *) (buf), (address), (size) )
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#define SET_GEOM(stream, dev, orig_dev, media, boot) \
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(stream)->Class->set_geom( (stream), (dev), (orig_dev), (media), (boot) )
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#define GET_DATA(stream, date, size, type, address) \
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(stream)->Class->get_data( (stream), (date), (size), (type), (address) )
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#define PRE_ALLOCATE(stream, size) \
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(stream)->Class->pre_allocate((stream), (size))
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#define GET_DOSCONVERT(stream) \
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(stream)->Class->get_dosConvert((stream))
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int flush_stream(struct Stream_t *Stream);
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struct Stream_t *copy_stream(struct Stream_t *Stream);
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int free_stream(struct Stream_t **Stream);
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#define DeclareThis(x) x *This = (x *) Stream
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int get_data_pass_through(struct Stream_t *Stream, time_t *date, size_t *size, int *type, int *address);
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int read_pass_through(struct Stream_t *Stream, char *buf, off_t start, size_t len);
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int write_pass_through(struct Stream_t *Stream, char *buf, off_t start, size_t len);
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#endif
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