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author | Lasse Collin <lasse.collin@tukaani.org> | 2007-12-09 00:42:33 +0200 |
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committer | Lasse Collin <lasse.collin@tukaani.org> | 2007-12-09 00:42:33 +0200 |
commit | 5d018dc03549c1ee4958364712fb0c94e1bf2741 (patch) | |
tree | 1b211911fb33fddb3f04b77f99e81df23623ffc4 /src/liblzma/common/allocator.c | |
download | xz-5d018dc03549c1ee4958364712fb0c94e1bf2741.tar.xz |
Imported to git.
Diffstat (limited to '')
-rw-r--r-- | src/liblzma/common/allocator.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/liblzma/common/allocator.c b/src/liblzma/common/allocator.c new file mode 100644 index 00000000..edea0f68 --- /dev/null +++ b/src/liblzma/common/allocator.c @@ -0,0 +1,57 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \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; +} |