1 /* Copyright (C) 1997, 1998, 1999 Aladdin Enterprises. All rights reserved. 2 3 This software is provided AS-IS with no warranty, either express or 4 implied. 5 6 This software is distributed under license and may not be copied, 7 modified or distributed except as expressly authorized under the terms 8 of the license contained in the file LICENSE in this distribution. 9 10 For more information about licensing, please refer to 11 http://www.ghostscript.com/licensing/. For information on 12 commercial licensing, go to http://www.artifex.com/licensing/ or 13 contact Artifex Software, Inc., 101 Lucas Valley Road #110, 14 San Rafael, CA 94903, U.S.A., +1(415)492-9861. 15 */ 16 17 /* $Id: icontext.h,v 1.5 2002/06/16 04:47:10 lpd Exp $ */ 18 /* Externally visible context state */ 19 /* Requires iref.h, stdio_.h */ 20 21 #ifndef icontext_INCLUDED 22 # define icontext_INCLUDED 23 24 #include "gsstype.h" /* for extern_st */ 25 #include "icstate.h" 26 27 /* Declare the GC descriptor for context states. */ 28 extern_st(st_context_state); 29 30 /* 31 * Define the procedure for resetting user parameters when switching 32 * contexts. This is defined in either zusparam.c or inouparm.c. 33 */ 34 extern int set_user_params(i_ctx_t *i_ctx_p, const ref * paramdict); 35 36 /* Allocate the state of a context, always in local VM. */ 37 /* If *ppcst == 0, allocate the state object as well. */ 38 int context_state_alloc(gs_context_state_t ** ppcst, 39 const ref *psystem_dict, 40 const gs_dual_memory_t * dmem); 41 42 /* Load the state of the interpreter from a context. */ 43 /* The argument is not const because caches may be updated. */ 44 int context_state_load(gs_context_state_t *); 45 46 /* Store the state of the interpreter into a context. */ 47 int context_state_store(gs_context_state_t *); 48 49 /* Free the contents of the state of a context, always to its local VM. */ 50 /* Return a mask of which of its VMs, if any, we freed. */ 51 int context_state_free(gs_context_state_t *); 52 53 #endif /* icontext_INCLUDED */ 54