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.Dd March 30, 2012
.Dt CK_HT_ENTRY_KEY_DIRECT 3
.Sh NAME
.Nm ck_ht_entry_key_direct
.Nd return key value as specified in hash table entry
.Sh LIBRARY
Concurrency Kit (libck, \-lck)
.Sh SYNOPSIS
.In ck_ht.h
.Ft uintptr_t
.Fn ck_ht_entry_key_direct "ck_ht_entry_t *entry"
.Sh DESCRIPTION
The
.Fn ck_ht_entry_key_direct
function will return the key value as specified in the
object pointed to by the
.Fa entry
argument.
.Pp
It is expected that the entry is
associated with a hash table initialized with
.Dv CK_HT_MODE_DIRECT
(see
.Xr ck_ht_init 3
for more information).
.Sh RETURN VALUES
.Fn ck_ht_entry_key_direct
returns
.Dv 0
if the entry is empty. Otherwise, it returns the
key value stored in the object pointed to by the
.Fa entry
argument.
.Sh ERRORS
Behavior is undefined if
.Fa entry
has not been initialized.
.Sh SEE ALSO
.Xr ck_ht_stat 3 ,
.Xr ck_ht_init 3 ,
.Xr ck_ht_destroy 3 ,
.Xr ck_ht_hash 3 ,
.Xr ck_ht_hash_direct 3 ,
.Xr ck_ht_set_spmc 3 ,
.Xr ck_ht_put_spmc 3 ,
.Xr ck_ht_gc 3 ,
.Xr ck_ht_get_spmc 3 ,
.Xr ck_ht_grow_spmc 3 ,
.Xr ck_ht_remove_spmc 3 ,
.Xr ck_ht_count 3 ,
.Xr ck_ht_reset_spmc 3 ,
.Xr ck_ht_reset_size_spmc 3 ,
.Xr ck_ht_entry_empty 3 ,
.Xr ck_ht_entry_key_set 3 ,
.Xr ck_ht_entry_key_set_direct 3 ,
.Xr ck_ht_entry_key_length 3 ,
.Xr ck_ht_entry_value 3 ,
.Xr ck_ht_entry_set 3 ,
.Xr ck_ht_entry_set_direct 3 ,
.Xr ck_ht_entry_key 3 ,
.Xr ck_ht_entry_value_direct 3 ,
.Xr ck_ht_iterator_init 3 ,
.Xr ck_ht_next 3
.Pp
Additional information available at http://concurrencykit.org/