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82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/*
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* Copyright (c) 2005 Hewlett-Packard Development Company, L.P.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/* Almost lock-free malloc implementation based on stack implementation. */
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/* See README_malloc.txt file for detailed usage rules. */
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#ifndef AO_MALLOC_H
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#define AO_MALLOC_H
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#include "atomic_ops_stack.h"
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#include <stddef.h> /* for size_t */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef AO_STACK_IS_LOCK_FREE
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# define AO_MALLOC_IS_LOCK_FREE
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#endif
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#ifndef AO_ATTR_MALLOC
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# if AO_GNUC_PREREQ(3, 1)
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# define AO_ATTR_MALLOC __attribute__((__malloc__))
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# elif defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(__EDG__)
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# define AO_ATTR_MALLOC \
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__declspec(allocator) __declspec(noalias) __declspec(restrict)
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# elif defined(_MSC_VER) && _MSC_VER >= 1400
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# define AO_ATTR_MALLOC __declspec(noalias) __declspec(restrict)
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# else
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# define AO_ATTR_MALLOC /* empty */
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# endif
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#endif
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#ifndef AO_ATTR_ALLOC_SIZE
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# ifdef __clang__
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# if __has_attribute(__alloc_size__)
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# define AO_ATTR_ALLOC_SIZE(argnum) \
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__attribute__((__alloc_size__(argnum)))
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# else
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# define AO_ATTR_ALLOC_SIZE(argnum) /* empty */
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# endif
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# elif AO_GNUC_PREREQ(4, 3) && !defined(__ICC)
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# define AO_ATTR_ALLOC_SIZE(argnum) __attribute__((__alloc_size__(argnum)))
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# else
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# define AO_ATTR_ALLOC_SIZE(argnum) /* empty */
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# endif
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#endif
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AO_API void AO_free(void *);
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AO_API AO_ATTR_MALLOC AO_ATTR_ALLOC_SIZE(1)
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void * AO_malloc(size_t);
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/* Allow use of mmap to grow the heap. No-op on some platforms. */
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AO_API void AO_malloc_enable_mmap(void);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* !AO_MALLOC_H */
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