libvirt/src/sexpr.h
Jim Meyering 64b3019d69 Adjust sexpr-related interfaces to be const-correct.
* src/sexpr.c (sexpr_cons, append, sexpr_append, sexpr2string)
(sexpr_lookup_key, sexpr_lookup, sexpr_node, sexpr_fmt_node):
Add "const" attribute where appropriate.
* src/xend_internal.c (sexpr_int, sexpr_float, sexpr_u64)
(sexpr_uuid, sexpr_to_xend_domain_info, sexpr_to_xend_node_info)
(sexpr_to_xend_topology_xml, sexpr_to_domain): Likewise.
* src/sexpr.h: Adjust prototypes.
2008-01-21 14:22:15 +00:00

55 lines
1.5 KiB
C

/*
* sexpr.h : S-Expression interfaces needed to communicate with the Xen Daemon
*
* Copyright (C) 2005
*
* Anthony Liguori <aliguori@us.ibm.com>
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License. See the file COPYING.LIB in the main directory of this
* archive for more details.
*/
#ifndef _LIBVIR_SEXPR_H_
#define _LIBVIR_SEXPR_H_
#include "internal.h"
#include <sys/types.h>
enum sexpr_type {
SEXPR_NIL,
SEXPR_CONS,
SEXPR_VALUE,
};
struct sexpr {
enum sexpr_type kind;
union {
struct {
struct sexpr *car;
struct sexpr *cdr;
} s;
char *value;
} u;
};
/* conversion to/from strings */
size_t sexpr2string(const struct sexpr *sexpr, char *buffer, size_t n_buffer);
struct sexpr *string2sexpr(const char *buffer);
/* constructors and destructors */
struct sexpr *sexpr_nil(void);
struct sexpr *sexpr_string(const char *str, ssize_t len);
struct sexpr *sexpr_cons(const struct sexpr *car, const struct sexpr *cdr);
struct sexpr *sexpr_append(struct sexpr *lst, const struct sexpr *item);
void sexpr_free(struct sexpr *sexpr);
/* lookup in S-Expressions */
const char *sexpr_node(const struct sexpr *sexpr, const char *node);
const char *sexpr_fmt_node(const struct sexpr *sexpr, const char *fmt, ...)
ATTRIBUTE_FORMAT(printf,2,3);
struct sexpr *sexpr_lookup(const struct sexpr *sexpr, const char *node);
int sexpr_has(struct sexpr *sexpr, const char *node);
#endif