/*
 * Copyright (C) 2012 Andrew Mortensen
 *
 * This file is part of the sca module for Kamailio, a free SIP server.
 *
 * The sca module 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
 *
 * The sca module 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 Street, Fifth Floor, Boston, MA. 02110-1301 USA
 */
/* common includes for s-r modules */

#ifndef SCA_COMMON_H
#define SCA_COMMON_H

#include <assert.h>

// general headers for module API, debugging, parsing, str handling
#include "../../core/sr_module.h"
#include "../../core/data_lump.h"
#include "../../core/data_lump_rpl.h"
#include "../../core/dprint.h"
#include "../../core/dset.h"
#include "../../core/flags.h"
#include "../../core/hashes.h"
#include "../../core/locking.h"
#include "../../core/parser/hf.h"
#include "../../core/parser/msg_parser.h"
#include "../../core/parser/contact/parse_contact.h"
#include "../../core/parser/parse_expires.h"
#include "../../core/parser/parse_from.h"
#include "../../core/str.h"

// memory management
#include "../../core/mem/mem.h"
#include "../../core/mem/shm_mem.h"

// bound API headers
#include "../../modules/sl/sl.h"
#include "../../modules/tm/tm_load.h"

// convenience macros
#define SCA_STRUCT_PTR_OFFSET(struct1, cast1, offset1) \
	(cast1)(struct1) + (offset1)

#define SCA_STR_COPY(str1, str2)               \
	memcpy((str1)->s, (str2)->s, (str2)->len); \
	(str1)->len = (str2)->len;

#define SCA_STR_APPEND(str1, str2)                           \
	memcpy((str1)->s + (str1)->len, (str2)->s, (str2)->len); \
	(str1)->len += (str2)->len;

#define SCA_STR_APPEND_L(str1, str1_lim, s2, s2_len)   \
	if((str1)->len + (s2_len) >= (str1_lim)) {         \
		LM_ERR("Failed to append to str: too long\n"); \
	} else {                                           \
		SCA_STR_APPEND((str1), (s2), (s2_len));        \
		(str1_lim) -= (s2_len);                        \
	}

#define SCA_STR_COPY_CSTR(str1, cstr1)                         \
	memcpy((str1)->s + (str1)->len, (cstr1), strlen((cstr1))); \
	(str1)->len += strlen((cstr1));

#define SCA_STR_APPEND_CSTR(str1, cstr1) SCA_STR_COPY_CSTR((str1), (cstr1))

#define SCA_STR_APPEND_CSTR_L(str1, str1_lim, cstr1)   \
	if((str1)->len + strlen(cstr1) >= (str1_lim)) {    \
		LM_ERR("Failed to append to str: too long\n"); \
	} else {                                           \
		SCA_STR_APPEND_CSTR((str1), (cstr1));          \
	}

// STR_EQ assumes we're not using str pointers, which is obnoxious
#define SCA_STR_EQ(str1, str2)    \
	(((str1)->len == (str2)->len) \
			&& memcmp((str1)->s, (str2)->s, (str1)->len) == 0)

#define SCA_STR_EMPTY(str1) \
	((str1) == NULL || ((str1)->s == NULL || (str1)->len <= 0))

#define SCA_HEADER_EMPTY(hdr1) ((hdr1) == NULL || SCA_STR_EMPTY(&(hdr1)->body))

#endif // SCA_COMMON_H