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/*
$Id$
Copyright (C) 2000, 2005 Herbert Valerio Riedel <hvr@gnu.org>
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __VCD_STREAM_H__
#define __VCD_STREAM_H__
#include <libvcd/types.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* typedef'ed IO functions prototypes */
typedef int(*vcd_data_open_t)(void *p_user_data);
typedef long(*vcd_data_read_t)(void *p_user_data, void *buf, long count);
typedef long(*vcd_data_write_t)(void *p_user_data, const void *buf,
long count);
typedef long(*vcd_data_seek_t)(void *p_user_data, long offset);
typedef long(*vcd_data_stat_t)(void *p_user_data);
typedef int(*vcd_data_close_t)(void *p_user_data);
typedef void(*vcd_data_free_t)(void *p_user_data);
/* abstract data sink */
typedef struct _VcdDataSink VcdDataSink;
typedef struct {
vcd_data_open_t open;
vcd_data_seek_t seek;
vcd_data_write_t write;
vcd_data_close_t close;
vcd_data_free_t free;
} vcd_data_sink_io_functions;
VcdDataSink*
vcd_data_sink_new(void *p_user_data, const vcd_data_sink_io_functions *funcs);
long
vcd_data_sink_write(VcdDataSink* p_obj, const void *ptr, long size,
long nmemb);
long
vcd_data_sink_printf (VcdDataSink *obj, const char format[], ...) GNUC_PRINTF(2, 3);
long
vcd_data_sink_seek(VcdDataSink* p_obj, long offset);
void
vcd_data_sink_destroy(VcdDataSink* p_obj);
void
vcd_data_sink_close(VcdDataSink* p_obj);
/* abstract data source */
typedef struct _VcdDataSource VcdDataSource_t;
typedef struct {
vcd_data_open_t open;
vcd_data_seek_t seek;
vcd_data_stat_t stat;
vcd_data_read_t read;
vcd_data_close_t close;
vcd_data_free_t free;
} vcd_data_source_io_functions;
VcdDataSource_t *
vcd_data_source_new(void *p_user_data,
const vcd_data_source_io_functions *funcs);
/**
read size*nmemb bytes from obj into ptr
*/
long
vcd_data_source_read(VcdDataSource_t *p_obj, /*out*/ void *ptr, long int size,
long int nmemb);
long
vcd_data_source_seek(VcdDataSource_t *p_obj, long int offset);
long
vcd_data_source_stat(VcdDataSource_t *p_obj);
void
vcd_data_source_destroy(VcdDataSource_t *p_obj);
void
vcd_data_source_close(VcdDataSource_t *p_obj);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __VCD_STREAM_H__ */
/*
* Local variables:
* c-file-style: "gnu"
* tab-width: 8
* indent-tabs-mode: nil
* End:
*/
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