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/* emem.h
* Definitions for ethereal memory management and garbage collection
* Ronnie Sahlberg 2005
*
* $Id$
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* 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 __EMEM_H__
#define __EMEM_H__
/* Functions for handling memory allocation and garbage collection with
* a packet lifetime scope.
* These functions are used to allocate memory that will only remain persistent
* until ethereal starts dissecting the next packet in the list.
* Everytime ethereal starts decoding the next packet all memory allocated
* through these functions will be released back to the free pool.
*
* These functions are very fast and offer automatic garbage collection:
* Everytime a new packet is dissected, all memory allocations done in
* the previous packet is freed.
*/
/* Initialize packet-lifetime memory allocation pool. This function is called
* once when [t]ethereal is initialized to set up the required structures.
*/
void ep_init_chunk(void);
/* Allocate memory with a packet lifetime scope */
void *ep_alloc(size_t size);
/* Allocate memory with a packet lifetime scope and fill it with zeros*/
void* ep_alloc0(size_t size);
/* Duplicate a string with a packet lifetime scope */
gchar* ep_strdup(const gchar* src);
/* Duplicate at most n characters of a string with a packet lifetime scope */
gchar* ep_strndup(const gchar* src, size_t len);
/* Duplicate a buffer with a packet lifetime scope */
guint8* ep_memdup(const guint8* src, size_t len);
/* Create a formated string with a packet lifetime scope */
gchar* ep_strdup_printf(const gchar* fmt, ...);
/* allocates with a packet lifetime scope a array of type made of num elements */
#define ep_alloc_array(type,num) (type*)ep_alloc(sizeof(type)*(num))
/*
* Splits a string into a maximum of max_tokens pieces, using the given
* delimiter. If max_tokens is reached, the remainder of string is appended
* to the last token.
* the vector and all the strings are allocated with packet lifetime scope
*/
gchar** ep_strsplit(const gchar* string, const gchar* delimiter, int max_tokens);
/* release all memory allocated in the previous packet dissector */
void ep_free_all(void);
#endif /* emem.h */
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