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NAME ck_ht_gc -- perform maintenance on a hash table LIBRARY Concurrency Kit (libck, -lck) SYNOPSIS #include <ck_ht.h> bool ck_ht_gc(ck_ht_t *ht, unsigned long cycles, unsigned long seed); DESCRIPTION The ck_ht_gc() function will perform various maintenance routines on the hash table pointed to by ht, including defragmentation of probe sequences with respect to tombstones and in the case that the delete workload hint has been passed, recalculation of probe sequence bounds. The cycles argu- ment is used to indicate how many hash table entries should be subject to attempted maintenance. If cycles is 0, then maintenance is performed on the complete hash table. The seed argument determines the start location of the maintenance process. If cycles is non-zero, it is recommended that seed is some random value. If the delete hint has been passed, the function will require an additional 12% of memory (with respect to existing memory usage of the set), until operation completion. RETURN VALUES Upon successful completion, ck_ht_gc(3) returns true and otherwise returns false on failure due to memory allocation failure. ERRORS This function will only return false if there are internal memory alloca- tion failures. SEE ALSO ck_ht_count(3), ck_ht_stat(3), ck_ht_init(3), ck_ht_destroy(3), ck_ht_hash(3), ck_ht_hash_direct(3), ck_ht_set_spmc(3), ck_ht_put_spmc(3), ck_ht_get_spmc(3), ck_ht_grow_spmc(3), ck_ht_remove_spmc(3), ck_ht_re- set_size_spmc(3), ck_ht_reset_spmc(3), ck_ht_entry_empty(3), ck_ht_en- try_key_set(3), ck_ht_entry_key_set_direct(3), ck_ht_entry_key(3), ck_ht_entry_key_length(3), ck_ht_entry_value(3), ck_ht_entry_set(3), ck_ht_entry_set_direct(3), ck_ht_entry_key_direct(3), ck_ht_entry_value_di- rect(3), ck_ht_iterator_init(3), ck_ht_next(3) Additional information available at http://concurrencykit.org/ December 18, 2013 CK_HT_GC(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO
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