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value_dict.h
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value_dict.h
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/*
* This file is part of ltrace.
* Copyright (C) 2011,2012 Petr Machata, Red Hat Inc.
*
* 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 St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef VALUE_DICT_H
#define VALUE_DICT_H
#include "forward.h"
#include "vect.h"
/* Value dictionary is used to store actual function arguments. It
* supports both numbered and named arguments. */
struct value_dict
{
struct vect numbered;
struct vect named;
};
/* Initialize DICT. */
void val_dict_init(struct value_dict *dict);
/* Clone SOURCE into TARGET. Return 0 on success or a negative value
* on failure. */
int val_dict_clone(struct value_dict *target, struct value_dict *source);
/* Push next numbered value, VAL. The value is copied over and the
* dictionary becomes its owner, and is responsible for destroying it
* later. Returns 0 on success and a negative value on failure. */
int val_dict_push_next(struct value_dict *dict, struct value *val);
/* Return count of numbered arguments. */
size_t val_dict_count(struct value_dict *dict);
/* Push value VAL named NAME. See notes at val_dict_push_next about
* value ownership. The name is owned and freed if OWN_NAME is
* non-zero. */
int val_dict_push_named(struct value_dict *dict, struct value *val,
const char *name, int own_name);
/* Get NUM-th numbered argument, or NULL if there's not that much
* arguments. */
struct value *val_dict_get_num(struct value_dict *dict, size_t num);
/* Get argument named NAME, or NULL if there's no such argument. */
struct value *val_dict_get_name(struct value_dict *dict, const char *name);
/* Destroy the dictionary and all the values in it. Note that DICT
* itself (the pointer) is not freed. */
void val_dict_destroy(struct value_dict *dict);
#endif /* VALUE_DICT_H */