From 51e3af6dca5650d4806e1b4b02441b3e81663378 Mon Sep 17 00:00:00 2001 From: Samy Al Bahra Date: Tue, 17 Dec 2013 22:33:24 -0500 Subject: [PATCH] doc: Add ck_hs_gc manual page. --- doc/Makefile.in | 1 + doc/ck_hs_gc | 86 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 87 insertions(+) create mode 100644 doc/ck_hs_gc diff --git a/doc/Makefile.in b/doc/Makefile.in index 8aa8d1a..e4f5521 100644 --- a/doc/Makefile.in +++ b/doc/Makefile.in @@ -67,6 +67,7 @@ OBJECTS=CK_ARRAY_FOREACH \ ck_epoch_reclaim \ ck_epoch_synchronize \ ck_epoch_unregister \ + ck_hs_gc \ ck_hs_init \ ck_hs_destroy \ CK_HS_HASH \ diff --git a/doc/ck_hs_gc b/doc/ck_hs_gc new file mode 100644 index 0000000..0980517 --- /dev/null +++ b/doc/ck_hs_gc @@ -0,0 +1,86 @@ +.\" +.\" Copyright 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 December 17, 2013 +.Dt CK_HS_GC 3 +.Sh NAME +.Nm ck_hs_gc +.Nd perform maintenance on a hash set +.Sh LIBRARY +Concurrency Kit (libck, \-lck) +.Sh SYNOPSIS +.In ck_hs.h +.Ft bool +.Fn ck_hs_gc "ck_hs_t *hs" "unsigned long cycles" "unsigned long seed" +.Sh DESCRIPTION +The +.Fn ck_hs_gc 3 +function will perform various maintenance routines on the hash set +pointed to by +.Fa hs , +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 +.Fa cycles +argument is used to indicate how many hash table entries should be subject +to attempted maintenance. If +.Fa cycles +is 0, then maintenance is performed on the complete hash set. The +.Fa seed +argument determines the start location of the maintenance process. If +.Fa cycles +is non-zero, it is recommended that +.Fa 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. +.Sh RETURN VALUES +Upon successful completion, +.Fn ck_hs_gc 3 +returns true and otherwise returns false on failure due to memory allocation +failure. +.Sh ERRORS +This function will only return false if there are internal memory allocation +failures. +.Sh SEE ALSO +.Xr ck_hs_init 3 , +.Xr ck_hs_move 3 , +.Xr ck_hs_destroy 3 , +.Xr CK_HS_HASH 3 , +.Xr ck_hs_iterator_init 3 , +.Xr ck_hs_next 3 , +.Xr ck_hs_get 3 , +.Xr ck_hs_put 3 , +.Xr ck_hs_put_unique 3 , +.Xr ck_hs_set 3 , +.Xr ck_hs_fas 3 , +.Xr ck_hs_remove 3 , +.Xr ck_hs_count 3 , +.Xr ck_hs_reset 3 , +.Xr ck_hs_reset_size 3 , +.Xr ck_hs_stat 3 +.Pp +Additional information available at http://concurrencykit.org/