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kaf24@firebug.cl.cam.ac.uk
393415f09c
favour of much simpler (and working) Xen's allocator (xmalloc by Rusty). Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>
24 lines
677 B
C
24 lines
677 B
C
#ifndef __XMALLOC_H__
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#define __XMALLOC_H__
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/* Allocate space for typed object. */
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#define xmalloc(_type) ((_type *)_xmalloc(sizeof(_type), __alignof__(_type)))
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/* Allocate space for array of typed objects. */
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#define xmalloc_array(_type, _num) ((_type *)_xmalloc_array(sizeof(_type), __alignof__(_type), _num))
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/* Free any of the above. */
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extern void xfree(const void *);
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/* Underlying functions */
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extern void *_xmalloc(size_t size, size_t align);
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static inline void *_xmalloc_array(size_t size, size_t align, size_t num)
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{
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/* Check for overflow. */
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if (size && num > UINT_MAX / size)
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return NULL;
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return _xmalloc(size * num, align);
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}
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#endif /* __XMALLOC_H__ */
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