148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
/*
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* This file is part of ltrace.
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* Copyright (C) 2011,2012 Petr Machata, Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include "value_dict.h"
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#include "value.h"
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struct named_value
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{
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const char *name;
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struct value value;
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int own_name;
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};
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void
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val_dict_init(struct value_dict *dict)
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{
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VECT_INIT(&dict->numbered, struct value);
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VECT_INIT(&dict->named, struct named_value);
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}
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static int
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value_clone_cb(struct value *tgt, const struct value *src, void *data)
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{
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return value_clone(tgt, src);
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}
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static void
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value_dtor(struct value *val, void *data)
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{
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value_destroy(val);
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}
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static int
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named_value_clone(struct named_value *tgt,
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const struct named_value *src, void *data)
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{
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tgt->name = strdup(src->name);
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if (tgt->name == NULL)
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return -1;
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tgt->own_name = 1;
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if (value_clone(&tgt->value, &src->value) < 0) {
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free((char *)tgt->name);
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return -1;
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}
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return 0;
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}
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static void
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named_value_dtor(struct named_value *named, void *data)
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{
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if (named->own_name)
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free((char *)named->name);
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value_destroy(&named->value);
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}
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int
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val_dict_clone(struct value_dict *target, struct value_dict *source)
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{
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if (VECT_CLONE(&target->numbered, &source->numbered, struct value,
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value_clone_cb, value_dtor, NULL) < 0)
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return -1;
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if (VECT_CLONE(&target->named, &source->named, struct named_value,
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named_value_clone, named_value_dtor, NULL) < 0) {
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VECT_DESTROY(&target->numbered, struct value, value_dtor, NULL);
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return -1;
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}
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return 0;
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}
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int
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val_dict_push_next(struct value_dict *dict, struct value *val)
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{
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return VECT_PUSHBACK(&dict->numbered, val);
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}
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int
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val_dict_push_named(struct value_dict *dict, struct value *val,
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const char *name, int own_name)
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{
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if (own_name && (name = strdup(name)) == NULL)
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return -1;
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struct named_value element = { name, *val, own_name };
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if (VECT_PUSHBACK(&dict->named, &element) < 0) {
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if (own_name)
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free((char *)name);
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return -1;
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}
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return 0;
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}
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size_t
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val_dict_count(struct value_dict *dict)
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{
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return vect_size(&dict->numbered);
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}
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struct value *
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val_dict_get_num(struct value_dict *dict, size_t num)
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{
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assert(num < vect_size(&dict->numbered));
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return VECT_ELEMENT(&dict->numbered, struct value, num);
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}
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struct value *
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val_dict_get_name(struct value_dict *dict, const char *name)
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{
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size_t i;
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for (i = 0; i < vect_size(&dict->named); ++i) {
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struct named_value *element
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= VECT_ELEMENT(&dict->named, struct named_value, i);
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if (strcmp(element->name, name) == 0)
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return &element->value;
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}
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return NULL;
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}
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void
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val_dict_destroy(struct value_dict *dict)
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{
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if (dict == NULL)
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return;
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VECT_DESTROY(&dict->numbered, struct value, value_dtor, NULL);
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VECT_DESTROY(&dict->named, struct named_value, named_value_dtor, NULL);
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}
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