.\"
.\" Copyright 2012 Samy Al Bahra.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"
.Dd March 29, 2012
.Dt CK_HT_GROW_SPMC 3
.Sh NAME
.Nm ck_ht_grow_spmc
.Nd resize a hash table if necessary
.Sh LIBRARY
Concurrency Kit (libck, \-lck)
.Sh SYNOPSIS
.In ck_ht.h
.Ft bool
.Fn ck_ht_grow_spmc "ck_ht_t *ht" "uint64_t capacity"
.Sh DESCRIPTION
The
.Fn ck_ht_grow_spmc
function will resize the hash table in order to be able to
at least store the number of entries specified by
.Fa capacity
at a load factor of one. The default load hash table load factor is
0.5. If you wish to minimize the likelihood of memory allocations
for a hash table meant to store n entries then specify a capacity
of 2n. The default behavior of ck_ht is to round
.Fa capacity
to the next available power of two if it is not already a power
of two.
.Pp
This function is safe to call in the presence of concurrent
.Xr ck_ht_get_spmc 3
operations.
.Sh RETURN VALUES
Upon successful completion
.Fn ck_ht_grow_spmc
returns
.Dv true
and otherwise returns a
.Dv false
value.
.Sh ERRORS
.Bl -tag -width Er
Behavior is undefined if
.Fa ht
is uninitialized. The function will only return
.Dv false
if there are internal memory allocation failures.
.El
.Sh SEE ALSO
.Xr ck_ht_init 3 ,
.Xr ck_ht_destroy 3 ,
.Xr ck_ht_allocator_set 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_get_spmc 3 ,
.Xr ck_ht_remove_spmc 3 ,
.Xr ck_ht_reset_spmc 3 ,
.Xr ck_ht_count 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 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_direct 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/