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22 lines
558 B
C++
22 lines
558 B
C++
#ifndef GC_ALIGN_H
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#define GC_ALIGN_H
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#ifndef GC_IMPL
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#error internal header file, not part of API
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#endif
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#include <stdint.h>
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static inline uintptr_t align_down(uintptr_t addr, size_t align) {
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return addr & ~(align - 1);
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}
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static inline uintptr_t align_up(uintptr_t addr, size_t align) {
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return align_down(addr + align - 1, align);
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}
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// Poor man's equivalent of std::hardware_destructive_interference_size.
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#define AVOID_FALSE_SHARING 128
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#define ALIGNED_TO_AVOID_FALSE_SHARING \
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__attribute__((aligned(AVOID_FALSE_SHARING)))
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#endif // GC_ALIGN_H
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