doc/ck_hs: Add ck_hs_stat manual page.

doc/Makefile.in

@@ -70,7 +70,8 @@ OBJECTS=ck_ht_count 	  		\
 	ck_hs_remove			\
 	ck_hs_grow			\
 	ck_hs_count			\
-	ck_hs_reset
+	ck_hs_reset			\
+	ck_hs_stat
 
 all: 
 	for target in $(OBJECTS); do 			   \

doc/ck_hs_stat

@@ -0,0 +1,74 @@
+.\"
+.\" 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 28, 2012
+.Dt CK_HS_STAT 3
+.Sh NAME
+.Nm ck_hs_stat
+.Nd get hash set status
+.Sh LIBRARY
+Concurrency Kit (libck, \-lck)
+.Sh SYNOPSIS
+.In ck_hs.h
+.Ft void
+.Fn ck_hs_stat "ck_hs_t *hs" "struct ck_hs_stat *st"
+.Sh DESCRIPTION
+The
+.Fn ck_hs_stat 3
+function will store various hash set statistics in
+the object pointed to by
+.Fa st .
+The ck_hs_stat structure is defined as follows:
+.Bd -literal -offset indent
+struct ck_hs_stat {
+	unsigned long tombstones;   /* Current number of tombstones in hash set. */
+	unsigned long n_entries;    /* Current number of keys in hash set. */
+	unsigned int probe_maximum; /* Longest read-side probe sequence. */
+};
+.Sh RETURN VALUES
+.Fn ck_hs_stat 3
+has no return value.
+.Sh ERRORS
+Behavior is undefined if
+.Fa hs
+is uninitialized. Behavior is
+undefined if this function is called by a non-writer
+thread.
+.Sh SEE ALSO
+.Xr ck_hs_init 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_set 3 ,
+.Xr ck_hs_remove 3 ,
+.Xr ck_hs_grow 3 ,
+.Xr ck_hs_count 3 ,
+.Xr ck_hs_reset 3
+.Pp
+Additional information available at http://concurrencykit.org/