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diff --git a/doc/ck_ht_grow_spmc b/doc/ck_ht_grow_spmc new file mode 100644 index 000000000000..70e6055fde2c --- /dev/null +++ b/doc/ck_ht_grow_spmc @@ -0,0 +1,98 @@ +.\" +.\" Copyright 2012-2013 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_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_remove_spmc 3 , +.Xr ck_ht_reset_spmc 3 , +.Xr ck_ht_reset_size_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/ |