1 /******************************************************************************/ 2 #ifdef JEMALLOC_H_TYPES 3 4 typedef struct ckh_s ckh_t; 5 typedef struct ckhc_s ckhc_t; 6 7 /* Typedefs to allow easy function pointer passing. */ 8 typedef void ckh_hash_t (const void *, size_t[2]); 9 typedef bool ckh_keycomp_t (const void *, const void *); 10 11 /* Maintain counters used to get an idea of performance. */ 12 /* #define CKH_COUNT */ 13 /* Print counter values in ckh_delete() (requires CKH_COUNT). */ 14 /* #define CKH_VERBOSE */ 15 16 /* 17 * There are 2^LG_CKH_BUCKET_CELLS cells in each hash table bucket. Try to fit 18 * one bucket per L1 cache line. 19 */ 20 #define LG_CKH_BUCKET_CELLS (LG_CACHELINE - LG_SIZEOF_PTR - 1) 21 22 #endif /* JEMALLOC_H_TYPES */ 23 /******************************************************************************/ 24 #ifdef JEMALLOC_H_STRUCTS 25 26 /* Hash table cell. */ 27 struct ckhc_s { 28 const void *key; 29 const void *data; 30 }; 31 32 struct ckh_s { 33 #ifdef CKH_COUNT 34 /* Counters used to get an idea of performance. */ 35 uint64_t ngrows; 36 uint64_t nshrinks; 37 uint64_t nshrinkfails; 38 uint64_t ninserts; 39 uint64_t nrelocs; 40 #endif 41 42 /* Used for pseudo-random number generation. */ 43 #define CKH_A 1103515241 44 #define CKH_C 12347 45 uint32_t prng_state; 46 47 /* Total number of items. */ 48 size_t count; 49 50 /* 51 * Minimum and current number of hash table buckets. There are 52 * 2^LG_CKH_BUCKET_CELLS cells per bucket. 53 */ 54 unsigned lg_minbuckets; 55 unsigned lg_curbuckets; 56 57 /* Hash and comparison functions. */ 58 ckh_hash_t *hash; 59 ckh_keycomp_t *keycomp; 60 61 /* Hash table with 2^lg_curbuckets buckets. */ 62 ckhc_t *tab; 63 }; 64 65 #endif /* JEMALLOC_H_STRUCTS */ 66 /******************************************************************************/ 67 #ifdef JEMALLOC_H_EXTERNS 68 69 bool ckh_new(ckh_t *ckh, size_t minitems, ckh_hash_t *hash, 70 ckh_keycomp_t *keycomp); 71 void ckh_delete(ckh_t *ckh); 72 size_t ckh_count(ckh_t *ckh); 73 bool ckh_iter(ckh_t *ckh, size_t *tabind, void **key, void **data); 74 bool ckh_insert(ckh_t *ckh, const void *key, const void *data); 75 bool ckh_remove(ckh_t *ckh, const void *searchkey, void **key, 76 void **data); 77 bool ckh_search(ckh_t *ckh, const void *seachkey, void **key, void **data); 78 void ckh_string_hash(const void *key, size_t r_hash[2]); 79 bool ckh_string_keycomp(const void *k1, const void *k2); 80 void ckh_pointer_hash(const void *key, size_t r_hash[2]); 81 bool ckh_pointer_keycomp(const void *k1, const void *k2); 82 83 #endif /* JEMALLOC_H_EXTERNS */ 84 /******************************************************************************/ 85 #ifdef JEMALLOC_H_INLINES 86 87 #endif /* JEMALLOC_H_INLINES */ 88 /******************************************************************************/ 89
