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/* longjmp-free interface between gdb and gdbtk.
   Copyright (C) 1999, 2000, 2002, 2008 Free Software Foundation, Inc.

This file is part of GDB.  It contains routines to safely call common gdb
functions without the fear of longjmp'ing.
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
 
This program 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 General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.  */

#ifndef GDBTK_WRAPPER_H
#define GDBTK_WRAPPER_H
#include "vec.h"

/* Use this struct used to pass arguments to wrapper routines. We assume
   (arbitrarily) that no gdb function takes more than ten arguments. */
struct gdb_wrapper_arguments {

  /* Pointer to some result from the gdb function call, if any */
  union
  {
    int integer;
    void *ptr;
  } result;

  /* The list of arguments. */
  union
  {
    void *ptr;
    int integer;
  } args[10];
};

/* FIXME: cagney/2002-01-04: GDB no longer uses or supplies the
   value_ptr typedef.  Provide one here to keep the Insight code
   immediatly happy.  */
typedef struct value *value_ptr;

/* Whenever any gdb function wrapper is called, its return status is: */
typedef enum gdb_wrapper_status { GDB_OK, GDB_ERROR } gdb_result;

/* This list of functions which have been wrapped. Please keep this list
   in alphabetical order, using "GDB_" to prefix the actual name of the
   function. */
extern gdb_result GDB_evaluate_expression (struct expression *expr,
                                           value_ptr * val);
extern gdb_result GDB_type_print (value_ptr val, char *varstring,
                                  struct ui_file *stream, int show);
extern gdb_result GDB_val_print (struct type *type, char *valaddr,
                                 CORE_ADDR address, struct ui_file *stream,
                                 int format, int deref_ref, int recurse,
                                 enum val_prettyformat pretty);
extern gdb_result GDB_value_fetch_lazy (value_ptr value);
extern gdb_result GDB_value_equal (value_ptr val1, value_ptr val2,
                                   int *result);
/*
extern gdb_result GDB_parse_exp_1 (char **stringptr, struct block *block,
                                   int comma, struct expression **result);
*/
extern gdb_result GDB_evaluate_type (struct expression *exp,
                                     value_ptr * result);
extern gdb_result GDB_block_for_pc (CORE_ADDR pc, struct block **result);
extern gdb_result GDB_block_innermost_frame (struct block *block,
                                             struct frame_info **result);
extern gdb_result GDB_reinit_frame_cache (void);
extern gdb_result GDB_value_ind (value_ptr val, value_ptr * rval);
extern gdb_result GDB_value_slice (value_ptr val, int low, int num,
                                   value_ptr * rval);
extern gdb_result GDB_value_coerce_array (value_ptr val, value_ptr * rval);
extern gdb_result GDB_value_struct_elt (value_ptr * argp, value_ptr * args,
                                        char *name, int *static_memfunc,
                                        char *err, value_ptr * rval);
extern gdb_result GDB_value_cast (struct type *type, value_ptr val,
                                  value_ptr * rval);
gdb_result GDB_get_frame_block (struct frame_info *fi, struct block **rval);
extern gdb_result GDB_get_prev_frame (struct frame_info *fi,
                                      struct frame_info **result);
extern gdb_result GDB_get_next_frame (struct frame_info *fi,
                                      struct frame_info **result);
extern gdb_result GDB_find_relative_frame (struct frame_info *fi,
                                           int *start,
                                           struct frame_info **result);
extern gdb_result GDB_get_current_frame (struct frame_info **result);
extern gdb_result GDB_varobj_update (struct varobj **varp, int explicit,
                                     VEC (varobj_update_result) **changes);
#endif /* GDBTK_WRAPPER_H */