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/*
memory.h -- Memory management;
Copyright (C) 2013, 2014, 2015 Bruno Félix Rezende Ribeiro <[email protected]>
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 3, 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, see <http://www.gnu.org/licenses/>.
*/
/**
* \file memory.h
* \brief Memory management
*/
#ifndef CCD2CUE_MEMORY_H
#define CCD2CUE_MEMORY_H
#include <stddef.h>
/**
* Obstack chunk allocate function;
*
* This function is called to allocate chunks of memory into which
* obstack objects are packed.
*
* \sa [Preparing for Using Obstacks] (https://gnu.org/software/libc/manual/html_node/Preparing-for-Obstacks.html#Preparing-for-Obstacks)
*
*/
#define obstack_chunk_alloc xmalloc
/**
* Obstack chunk free function;
*
* This function is called to return chunks of memory when the obstack
* objects in them are freed.
*
* \sa [Preparing for Using Obstacks] (https://gnu.org/software/libc/manual/html_node/Preparing-for-Obstacks.html#Preparing-for-Obstacks)
*
*/
#define obstack_chunk_free free
/**
* Allocate memory.
*
* \param[in] size Block size in bytes;
*
* \return A pointer to the newly allocated block;
*
* \since 0.2
*
* This function returns a pointer to a newly allocated block SIZE
* bytes long, or exits with failure if the block could not be
* allocated. It is just a wrapper around 'malloc'.
*
* \sa [Basic Memory Allocation] (https://gnu.org/software/libc/manual/html_node/Basic-Allocation.html#Basic-Allocation)
*
*/
void * xmalloc (size_t size)
__attribute__ ((malloc, alloc_size (1), warn_unused_result));
/**
* Reallocate memory.
*
* \param[in] ptr Block address;
* \param[in] newsize New size in bytes;
*
* \return The new address of the block;
*
* \since 0.2
*
* This function changes the size of the block whose address is PTR to
* be NEWSIZE. If it succeeds, the address of the newly allocated
* block is returned. If it is not possible to reallocate the memory
* block this function exits with failure. It is just a wrapper
* around 'realloc'.
*
* \sa [Changing the Size of a Block] (https://gnu.org/software/libc/manual/html_node/Changing-Block-Size.html#Changing-Block-Size)
*
**/
void * xrealloc (void *ptr, size_t newsize)
__attribute__ ((alloc_size (2), warn_unused_result));
#endif /* CCD2CUE_MEMORY_H */
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