chanvars.h

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/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 1999 - 2005, Digium, Inc.
 *
 * Mark Spencer <markster@digium.com>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */
 
/*! \file
 * \brief Channel Variables
 */
 
#ifndef _ASTERISK_CHANVARS_H
#define _ASTERISK_CHANVARS_H
 
#include "asterisk/linkedlists.h"
 
struct ast_var_t {
    AST_LIST_ENTRY(ast_var_t) entries;
    char *value;
    char name[0];
};
 
AST_LIST_HEAD_NOLOCK(varshead, ast_var_t);
 
struct varshead *ast_var_list_create(void);
void ast_var_list_destroy(struct varshead *head);
 
struct ast_var_t *_ast_var_assign(const char *name, const char *value, const char *file, int lineno, const char *function);
#define ast_var_assign(name, value) _ast_var_assign(name, value, __FILE__, __LINE__, __PRETTY_FUNCTION__)
 
void ast_var_delete(struct ast_var_t *var);
const char *ast_var_name(const struct ast_var_t *var);
const char *ast_var_full_name(const struct ast_var_t *var);
const char *ast_var_value(const struct ast_var_t *var);
char *ast_var_find(const struct varshead *head, const char *name);
struct varshead *ast_var_list_clone(struct varshead *head);
 
#define AST_VAR_LIST_TRAVERSE(head, var) AST_LIST_TRAVERSE(head, var, entries)
 
static inline void AST_VAR_LIST_INSERT_TAIL(struct varshead *head, struct ast_var_t *var) {
    if (var) {
        AST_LIST_INSERT_TAIL(head, var, entries);
    }
}
 
static inline void AST_VAR_LIST_INSERT_HEAD(struct varshead *head, struct ast_var_t *var) {
    if (var) {
        AST_LIST_INSERT_HEAD(head, var, entries);
    }
}
 
#endif /* _ASTERISK_CHANVARS_H */