/usr/include/pj/guid.h is in libpjproject-dev 2.7.2~dfsg-1.
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/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PJ_GUID_H__
#define __PJ_GUID_H__
/**
* @file guid.h
* @brief GUID Globally Unique Identifier.
*/
#include <pj/types.h>
PJ_BEGIN_DECL
/**
* @defgroup PJ_DS Data Structure.
*/
/**
* @defgroup PJ_GUID Globally Unique Identifier
* @ingroup PJ_DS
* @{
*
* This module provides API to create string that is globally unique.
* If application doesn't require that strong requirement, it can just
* use #pj_create_random_string() instead.
*/
/**
* PJ_GUID_STRING_LENGTH specifies length of GUID string. The value is
* dependent on the algorithm used internally to generate the GUID string.
* If real GUID generator is used, then the length will be between 32 and
* 36 bytes. Application should not assume which algorithm will
* be used by GUID generator.
*
* Regardless of the actual length of the GUID, it will not exceed
* PJ_GUID_MAX_LENGTH characters.
*
* @see pj_GUID_STRING_LENGTH()
* @see PJ_GUID_MAX_LENGTH
*/
PJ_DECL_DATA(const unsigned) PJ_GUID_STRING_LENGTH;
/**
* Get #PJ_GUID_STRING_LENGTH constant.
*/
PJ_DECL(unsigned) pj_GUID_STRING_LENGTH(void);
/**
* PJ_GUID_MAX_LENGTH specifies the maximum length of GUID string,
* regardless of which algorithm to use.
*/
#define PJ_GUID_MAX_LENGTH 36
/**
* Create a globally unique string, which length is PJ_GUID_STRING_LENGTH
* characters. Caller is responsible for preallocating the storage used
* in the string.
*
* @param str The string to store the result.
*
* @return The string.
*/
PJ_DECL(pj_str_t*) pj_generate_unique_string(pj_str_t *str);
/**
* Create a globally unique string in lowercase, which length is
* PJ_GUID_STRING_LENGTH characters. Caller is responsible for preallocating
* the storage used in the string.
*
* @param str The string to store the result.
*
* @return The string.
*/
PJ_DECL(pj_str_t*) pj_generate_unique_string_lower(pj_str_t *str);
/**
* Generate a unique string.
*
* @param pool Pool to allocate memory from.
* @param str The string.
*/
PJ_DECL(void) pj_create_unique_string(pj_pool_t *pool, pj_str_t *str);
/**
* Generate a unique string in lowercase.
*
* @param pool Pool to allocate memory from.
* @param str The string.
*/
PJ_DECL(void) pj_create_unique_string_lower(pj_pool_t *pool, pj_str_t *str);
/**
* @}
*/
PJ_END_DECL
#endif/* __PJ_GUID_H__ */
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