| CK_HS_FAS(3) | Library Functions Manual | CK_HS_FAS(3) |
ck_hs_fas — fetch
and store key in hash set
Concurrency Kit (libck, -lck)
#include
<ck_hs.h>
bool
ck_hs_fas(ck_hs_t
*hs, unsigned long
hash, const void
*key, void
**previous);
The
ck_hs_fas(3)
function will fetch and store the key specified by the
key argument in the hash set pointed to by the
hs argument. The key specified by
key is expected to have the hash value specified by
the hash argument (which was previously generated
using the CK_HS_HASH(3) macro).
If the call to
ck_hs_fas(3)
was successful then the key specified by key was
successfully stored in the hash set pointed to by hs.
The key must already exist in the hash set, and is replaced by
key and the previous value is stored into the void
pointer pointed to by the previous argument. If the
key does not exist in the hash set then the function will return false and
the hash set is unchanged. This function is guaranteed to be stable with
respect to memory usage.
Upon successful completion,
ck_hs_fas(3) returns true and
otherwise returns false on failure.
Behavior is undefined if key or hs are uninitialized.
ck_hs_init(3), ck_hs_move(3), ck_hs_destroy(3), CK_HS_HASH(3), ck_hs_iterator_init(3), ck_hs_next(3), ck_hs_get(3), ck_hs_put(3), ck_hs_put_unique(3), ck_hs_remove(3), ck_hs_grow(3), ck_hs_rebuild(3), ck_hs_gc(3), ck_hs_count(3), ck_hs_reset(3), ck_hs_reset_size(3), ck_hs_stat(3)
Additional information available at http://concurrencykit.org/
| June 20, 2013 |