bstream.h 2.7 KB
/* GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA  */

#ifndef MAILUTILS_SYS_BSTREAM_H
#define MAILUTILS_SYS_BSTREAM_H

#ifdef DMALLOC
#  include <dmalloc.h>
#endif

#include <mailutils/sys/stream.h>
#include <mailutils/refcount.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Read buffer */
struct _rbuffer
{
  char *base;
  char *ptr;
  int  count;
  off_t offset;
  size_t bufsize;
};

struct _stream_buffer
{
  struct _stream base;
  mu_refcount_t refcount;
  stream_t stream;
  struct _rbuffer rbuffer;
};

extern int  _stream_buffer_ctor __P ((struct _stream_buffer *, stream_t, size_t));
extern void _stream_buffer_dtor __P ((stream_t));
extern int  _stream_buffer_ref  __P ((stream_t));
extern void _stream_buffer_destroy __P ((stream_t *));
extern int  _stream_buffer_open    __P ((stream_t, const char *, int, int));
extern int  _stream_buffer_close   __P ((stream_t));
extern int  _stream_buffer_read    __P ((stream_t, void *, size_t, off_t, size_t *));
extern int  _stream_buffer_readline __P ((stream_t, char *, size_t, off_t, size_t *));
extern int  _stream_buffer_write __P ((stream_t, const void *, size_t, off_t, size_t *));
extern int  _stream_buffer_get_fd __P ((stream_t, int *));
extern int  _stream_buffer_get_flags __P ((stream_t, int *));
extern int  _stream_buffer_get_size  __P ((stream_t, off_t *));
extern int  _stream_buffer_truncate  __P ((stream_t, off_t));
extern int  _stream_buffer_flush     __P ((stream_t));
extern int  _stream_buffer_get_state __P ((stream_t, enum stream_state *));
extern int  _stream_buffer_tell __P ((stream_t, off_t *));
extern int  _stream_buffer_is_seekable __P ((stream_t));
extern int  _stream_buffer_is_readready __P ((stream_t, int ));
extern int  _stream_buffer_is_writeready __P ((stream_t, int));
extern int  _stream_buffer_is_exceptionpending __P ((stream_t, int));
extern int  _stream_buffer_is_open __P ((stream_t));

#ifdef __cplusplus
}
#endif

#endif /* _MAILUTILS_SYS_BSTREAM_H */