Imported Upstream version 0.7.2upstream/0.7.2

1 files changed, 148 insertions, 0 deletions

diff --git a/value_dict.c b/value_dict.c
new file mode 100644
index 0000000..d9c46d4
--- /dev/null
+++ b/value_dict.c
@@ -0,0 +1,148 @@
+/*
+ * 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
+ */
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "value_dict.h"
+#include "value.h"
+
+struct named_value
+{
+	const char *name;
+	struct value value;
+	int own_name;
+};
+
+void
+val_dict_init(struct value_dict *dict)
+{
+	VECT_INIT(&dict->numbered, struct value);
+	VECT_INIT(&dict->named, struct named_value);
+}
+
+static int
+value_clone_cb(struct value *tgt, const struct value *src, void *data)
+{
+	return value_clone(tgt, src);
+}
+
+static void
+value_dtor(struct value *val, void *data)
+{
+	value_destroy(val);
+}
+
+static int
+named_value_clone(struct named_value *tgt,
+		  const struct named_value *src, void *data)
+{
+	tgt->name = strdup(src->name);
+	if (tgt->name == NULL)
+		return -1;
+	tgt->own_name = 1;
+	if (value_clone(&tgt->value, &src->value) < 0) {
+		free((char *)tgt->name);
+		return -1;
+	}
+	return 0;
+}
+
+static void
+named_value_dtor(struct named_value *named, void *data)
+{
+	if (named->own_name)
+		free((char *)named->name);
+	value_destroy(&named->value);
+}
+
+int
+val_dict_clone(struct value_dict *target, struct value_dict *source)
+{
+	if (VECT_CLONE(&target->numbered, &source->numbered, struct value,
+		       value_clone_cb, value_dtor, NULL) < 0)
+		return -1;
+
+	if (VECT_CLONE(&target->named, &source->named, struct named_value,
+		       named_value_clone, named_value_dtor, NULL) < 0) {
+		VECT_DESTROY(&target->numbered, struct value, value_dtor, NULL);
+		return -1;
+	}
+
+	return 0;
+}
+
+int
+val_dict_push_next(struct value_dict *dict, struct value *val)
+{
+	return VECT_PUSHBACK(&dict->numbered, val);
+}
+
+int
+val_dict_push_named(struct value_dict *dict, struct value *val,
+		    const char *name, int own_name)
+{
+	if (own_name && (name = strdup(name)) == NULL)
+		return -1;
+	struct named_value element = { name, *val, own_name };
+	if (VECT_PUSHBACK(&dict->named, &element) < 0) {
+		if (own_name)
+			free((char *)name);
+		return -1;
+	}
+	return 0;
+}
+
+size_t
+val_dict_count(struct value_dict *dict)
+{
+	return vect_size(&dict->numbered);
+}
+
+struct value *
+val_dict_get_num(struct value_dict *dict, size_t num)
+{
+	assert(num < vect_size(&dict->numbered));
+	return VECT_ELEMENT(&dict->numbered, struct value, num);
+}
+
+struct value *
+val_dict_get_name(struct value_dict *dict, const char *name)
+{
+	size_t i;
+	for (i = 0; i < vect_size(&dict->named); ++i) {
+		struct named_value *element
+			= VECT_ELEMENT(&dict->named, struct named_value, i);
+		if (strcmp(element->name, name) == 0)
+			return &element->value;
+	}
+	return NULL;
+}
+
+void
+val_dict_destroy(struct value_dict *dict)
+{
+	if (dict == NULL)
+		return;
+
+	VECT_DESTROY(&dict->numbered, struct value, value_dtor, NULL);
+	VECT_DESTROY(&dict->named, struct named_value, named_value_dtor, NULL);
+}