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/* Portions Copyright (C) 2003 artofcode LLC.
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Portions Copyright (C) 2003 Artifex Software Inc.
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This software is based in part on the work of the Independent JPEG Group.
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All Rights Reserved.
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This software is distributed under license and may not be copied, modified
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or distributed except as expressly authorized under the terms of that
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license. Refer to licensing information at http://www.artifex.com/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, (415)492-9861, for further information. */
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/*$Id: gslibctx.h,v 1.5 2004/11/03 17:46:16 giles Exp $ */
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#ifndef GSLIBCTX_H
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#define GSLIBCTX_H
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#include "std.h"
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#include "stdio_.h"
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#include "gs_dll_call.h"
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typedef struct name_table_s *name_table_ptr;
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typedef struct gs_lib_ctx_s
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{
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gs_memory_t *memory; /* mem->gs_lib_ctx->memory == mem */
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FILE *fstdin;
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FILE *fstdout;
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FILE *fstderr;
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FILE *fstdout2; /* for redirecting %stdout and diagnostics */
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bool stdout_is_redirected; /* to stderr or fstdout2 */
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bool stdout_to_stderr;
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bool stdin_is_interactive;
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void *caller_handle; /* identifies caller of GS DLL/shared object */
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int (GSDLLCALL *stdin_fn)(void *caller_handle, char *buf, int len);
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int (GSDLLCALL *stdout_fn)(void *caller_handle, const char *str, int len);
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int (GSDLLCALL *stderr_fn)(void *caller_handle, const char *str, int len);
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int (GSDLLCALL *poll_fn)(void *caller_handle);
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ulong gs_next_id; /* gs_id initialized here, private variable of gs_next_ids() */
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void *top_of_system; /* use accessor functions to walk down the system
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* to the desired structure gs_lib_ctx_get_*()
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*/
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name_table_ptr gs_name_table; /* hack this is the ps interpreters name table
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* doesn't belong here
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*/
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/* Define whether dictionaries expand automatically when full. */
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bool dict_auto_expand; /* ps dictionary: false level 1 true level 2 or 3 */
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} gs_lib_ctx_t;
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/** initializes and stores itself in the given gs_memory_t pointer.
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* it is the responsibility of the gs_memory_t objects to copy
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* the pointer to subsequent memory objects.
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*/
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int gs_lib_ctx_init( gs_memory_t *mem );
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void *gs_lib_ctx_get_interp_instance( gs_memory_t *mem );
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/* HACK to get at non garbage collection memory pointer
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*
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*/
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const gs_memory_t * gs_lib_ctx_get_non_gc_memory_t(void);
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#endif /* GSLIBCTX_H */
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