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Key.h
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49 lines (36 loc) · 1.11 KB
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#ifndef ART_KEY_H
#define ART_KEY_H
#include <stdint.h>
#include <cstring>
#include <memory>
#include <assert.h>
typedef struct Key {
uint64_t value;
size_t key_len;
uint8_t fkey[];
inline Key *make_leaf(char *key, size_t key_len, uint64_t value);
inline Key *make_leaf(uint64_t key, size_t key_len, uint64_t value);
inline size_t getKeyLen() const;
} Key;
inline Key *Key::make_leaf(char *key, size_t key_len, uint64_t value)
{
void *aligned_alloc;
posix_memalign(&aligned_alloc, 64, sizeof(Key) + key_len);
Key *k = reinterpret_cast<Key *> (aligned_alloc);
k->value = value;
k->key_len = key_len;
memcpy(k->fkey, key, key_len);
return k;
}
inline Key *Key::make_leaf(uint64_t key, size_t key_len, uint64_t value)
{
void *aligned_alloc;
posix_memalign(&aligned_alloc, 64, sizeof(Key) + key_len);
Key *k = reinterpret_cast<Key *> (aligned_alloc);
k->value = value;
k->key_len = key_len;
reinterpret_cast<uint64_t *> (&k->fkey[0])[0] = __builtin_bswap64(key);
return k;
}
inline size_t Key::getKeyLen() const { return key_len; }
#endif // ART_KEY_H