mirror of https://git.tukaani.org/xz.git
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
/// \file allocator.c
|
||
|
|
/// \brief Allocating and freeing memory
|
||
|
|
//
|
||
|
|
// Copyright (C) 2007 Lasse Collin
|
||
|
|
//
|
||
|
|
// This library is free software; you can redistribute it and/or
|
||
|
|
// modify it under the terms of the GNU Lesser General Public
|
||
|
|
// License as published by the Free Software Foundation; either
|
||
|
|
// version 2.1 of the License, or (at your option) any later version.
|
||
|
|
//
|
||
|
|
// This library 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
|
||
|
|
// Lesser General Public License for more details.
|
||
|
|
//
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
#include "common.h"
|
||
|
|
|
||
|
|
#undef lzma_free
|
||
|
|
|
||
|
|
extern void * lzma_attribute((malloc))
|
||
|
|
lzma_alloc(size_t size, lzma_allocator *allocator)
|
||
|
|
{
|
||
|
|
// Some malloc() variants return NULL if called with size == 0.
|
||
|
|
if (size == 0)
|
||
|
|
size = 1;
|
||
|
|
|
||
|
|
void *ptr;
|
||
|
|
|
||
|
|
if (allocator != NULL && allocator->alloc != NULL)
|
||
|
|
ptr = allocator->alloc(allocator->opaque, 1, size);
|
||
|
|
else
|
||
|
|
ptr = malloc(size);
|
||
|
|
|
||
|
|
#if !defined(NDEBUG) && defined(HAVE_MEMSET)
|
||
|
|
// This helps to catch some stupid mistakes.
|
||
|
|
if (ptr != NULL)
|
||
|
|
memset(ptr, 0xFD, size);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return ptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
extern void
|
||
|
|
lzma_free(void *ptr, lzma_allocator *allocator)
|
||
|
|
{
|
||
|
|
if (allocator != NULL && allocator->free != NULL)
|
||
|
|
allocator->free(allocator->opaque, ptr);
|
||
|
|
else
|
||
|
|
free(ptr);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|