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kamailio/lib/cds/serialize.h

85 lines
2.7 KiB

/*
* Copyright (C) 2005 iptelorg GmbH
*
* This file is part of ser, a free SIP server.
*
* ser 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
*
* For a license to use the ser software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* ser 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __SERIALIZE_H
#define __SERIALIZE_H
/* serialization/deserialization data structures and functions */
#include <cds/dstring.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
dstring_t out; /* output string */
str_t in; /* input string */
int in_pos; /* position in input */
enum { sstream_in, sstream_out } type;
} sstream_t;
#define is_input_sstream(ss) (ss->type == sstream_in)
int init_input_sstream(sstream_t *ss, char *data_in, int data_len);
int init_output_sstream(sstream_t *ss, int out_buff_resize);
/** returns serialized data as newly allocated string in shared memory */
int get_serialized_sstream(sstream_t *ss, str_t *dst);
/** returns the length of serialized data */
int get_serialized_sstream_len(sstream_t *ss);
/** copies serialized data into given buffer */
int get_serialized_sstream_data(sstream_t *ss, char *dst);
void destroy_sstream(sstream_t *ss);
int sstream_put(sstream_t *ss, const char *s, int len);
int sstream_put_str(sstream_t *ss, str_t *s);
int sstream_put_zt(sstream_t *ss, const char *s);
int sstream_get(sstream_t *ss, char *c);
/* returns a part of string of given length - it is NOT a copy !!! */
int sstream_get_str_ex(sstream_t *ss, int len, str_t *dst);
/* returns a copy of string from input buffer */
int sstream_get_str(sstream_t *ss, int len, str_t *dst);
int serialize_int(sstream_t *ss, int *num);
int serialize_uint(sstream_t *ss, unsigned int *num);
int serialize_char(sstream_t *ss, char *c);
int serialize_uchar(sstream_t *ss, unsigned char *c);
int serialize_str(sstream_t *ss, str_t *s);
int serialize_str_ex(sstream_t *ss, str_t *s); /* doesn't duplicate read strings */
#ifdef __cplusplus
}
#endif
#endif