mirror of https://git.tukaani.org/xz.git
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
///////////////////////////////////////////////////////////////////////////////
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//
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/// \file allocator.c
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/// \brief Allocating and freeing memory
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//
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// Copyright (C) 2007 Lasse Collin
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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///////////////////////////////////////////////////////////////////////////////
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#include "common.h"
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#undef lzma_free
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extern void * lzma_attribute((malloc))
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lzma_alloc(size_t size, lzma_allocator *allocator)
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{
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// Some malloc() variants return NULL if called with size == 0.
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if (size == 0)
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size = 1;
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void *ptr;
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if (allocator != NULL && allocator->alloc != NULL)
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ptr = allocator->alloc(allocator->opaque, 1, size);
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else
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ptr = malloc(size);
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#if !defined(NDEBUG) && defined(HAVE_MEMSET)
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// This helps to catch some stupid mistakes.
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if (ptr != NULL)
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memset(ptr, 0xFD, size);
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#endif
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return ptr;
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}
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extern void
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lzma_free(void *ptr, lzma_allocator *allocator)
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{
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if (allocator != NULL && allocator->free != NULL)
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allocator->free(allocator->opaque, ptr);
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else
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free(ptr);
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return;
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}
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