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///////////////////////////////////////////////////////////////////////////////
//
/// \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;
}
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