| #ifndef _X86_ATOMIC_BITSET_H_ |
| #define _X86_ATOMIC_BITSET_H_ |
| |
| #include <stdint.h> |
| #include <stdbool.h> |
| |
| struct AtomicBitset { |
| uint32_t numBits; |
| uint32_t words[]; |
| }; |
| |
| #define ATOMIC_BITSET_SZ(numbits) (sizeof(struct AtomicBitset) + ((numbits) + 31) / 8) |
| #define ATOMIC_BITSET_DECL(nam, numbits, extra_keyword) extra_keyword uint8_t _##nam##_store [ATOMIC_BITSET_SZ(numbits)] __attribute__((aligned(4))); extra_keyword struct AtomicBitset *nam = (struct AtomicBitset*)_##nam##_store |
| |
| |
| void atomicBitsetInit(struct AtomicBitset *set, uint32_t numBits); |
| uint32_t atomicBitsetGetNumBits(const struct AtomicBitset *set); |
| bool atomicBitsetGetBit(const struct AtomicBitset *set, uint32_t num); |
| void atomicBitsetClearBit(struct AtomicBitset *set, uint32_t num); |
| int32_t atomicBitsetFindClearAndSet(struct AtomicBitset *set); |
| |
| #endif |
| |
| |
