/* Portions Copyright (C) 2001 artofcode LLC.
   Portions Copyright (C) 1996, 2001 Artifex Software Inc.
   Portions Copyright (C) 1988, 2000 Aladdin Enterprises.
   This software is based in part on the work of the Independent JPEG Group.
   All Rights Reserved.

   This software is distributed under license and may not be copied, modified
   or distributed except as expressly authorized under the terms of that
   license.  Refer to licensing information at http://www.artifex.com/ or
   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
   San Rafael, CA  94903, (415)492-9861, for further information. */

/*$RCSfile: istream.h,v $ $Revision: 1.10 $ */
/* Interpreter support procedures for streams */
/* Requires scommon.h */

#ifndef istream_INCLUDED
#  define istream_INCLUDED

/* Procedures exported by zfproc.c */

	/* for zfilter.c - procedure stream initialization */
int sread_proc(ref *, stream **, gs_ref_memory_t *);
int swrite_proc(ref *, stream **, gs_ref_memory_t *);

	/* for interp.c, zfileio.c, zpaint.c - handle a procedure */
	/* callback or an interrupt */
int s_handle_read_exception(i_ctx_t *, int, const ref *, const ref *,
			    int, op_proc_t);
int s_handle_write_exception(i_ctx_t *, int, const ref *, const ref *,
			     int, op_proc_t);

#endif /* istream_INCLUDED */
