Function prime_offset

src/bthread/prime_offset.h:26–31

Prime number offset for hash function.

namespace bthread {
// Prime number offset for hash function.
inline size_t prime_offset(size_t seed) {
    uint32_t offsets[] = {
        #include "bthread/offset_inl.list"
    };
    return offsets[seed % ARRAY_SIZE(offsets)];
}

inline size_t prime_offset() {
    return prime_offset(butil::fast_rand());