File: icstate.h

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/* Copyright (C) 2001-2006 Artifex Software, Inc.
   All Rights Reserved.
  
   This software is provided AS-IS with no warranty, either express or
   implied.

   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.,  7 Mt. Lassen Drive - Suite A-134,
   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
*/

/* $Id: icstate.h 9043 2008-08-28 22:48:19Z giles $ */
/* Externally visible context state */

#ifndef icstate_INCLUDED
#  define icstate_INCLUDED

#include "imemory.h"
#include "iref.h"
#include "idsdata.h"
#include "iesdata.h"
#include "iosdata.h"

/*
 * Define the externally visible state of an interpreter context.
 * If we aren't supporting Display PostScript features, there is only
 * a single context.
 */
#ifndef gs_context_state_t_DEFINED
#  define gs_context_state_t_DEFINED
typedef struct gs_context_state_s gs_context_state_t;
#endif

#ifndef gs_file_path_ptr_DEFINED
#  define gs_file_path_ptr_DEFINED
typedef struct gs_file_path_s *gs_file_path_ptr;
#endif


struct gs_context_state_s {
    gs_state *pgs;
    gs_dual_memory_t memory;
    int language_level;
    ref array_packing;		/* t_boolean */
    ref binary_object_format;	/* t_integer */
    long rand_state;		/* (not in Red Book) */
    long usertime_total;	/* total accumulated usertime, */
				/* not counting current time if running */
    bool keep_usertime;		/* true if context ever executed usertime */
    int in_superexec;		/* # of levels of superexec */
    /* View clipping is handled in the graphics state. */
    ref error_object;		/* t__invalid or error object from operator */
    ref userparams;		/* t_dictionary */
    int scanner_options;	/* derived from userparams */
    bool LockFilePermissions;	/* accessed from userparams */
    bool starting_arg_file;	/* starting a file specified in command line. */
    bool RenderTTNotdef;	/* accessed from userparams */
    gs_file_path_ptr lib_path;	/* library search list (GS_LIB) */
    ref stdio[3];		/* t_file */
    /* Put the stacks at the end to minimize other offsets. */
    dict_stack_t dict_stack;
    exec_stack_t exec_stack;
    op_stack_t op_stack;
    struct i_plugin_holder_s *plugin_list;
};
extern const long rand_state_initial; /* in zmath.c */

/*
 * We make st_context_state public because zcontext.c must subclass it.
 */
/*extern_st(st_context_state); *//* in icontext.h */
#define public_st_context_state()	/* in icontext.c */\
  gs_public_st_complex_only(st_context_state, gs_context_state_t,\
    "gs_context_state_t", context_state_clear_marks,\
    context_state_enum_ptrs, context_state_reloc_ptrs, 0)

#endif /* icstate_INCLUDED */