diff options
author | Rainer Gerhards <rgerhards@adiscon.com> | 2010-10-05 16:10:27 +0200 |
---|---|---|
committer | Rainer Gerhards <rgerhards@adiscon.com> | 2010-10-05 16:10:27 +0200 |
commit | c7e9e2123ee71fb868bbcff59225e009e21af590 (patch) | |
tree | 12ab52bb20cb34c9fcd36816e836a1959440d5fc /runtime/hashtable/hashtable_utility.c | |
parent | 304ab88dd64b2ae46554fa5394aa8822194b1e95 (diff) | |
parent | b5afa1a5be2909ed13f77ef0e0804bab75325198 (diff) | |
download | rsyslog-c7e9e2123ee71fb868bbcff59225e009e21af590.tar.gz rsyslog-c7e9e2123ee71fb868bbcff59225e009e21af590.tar.bz2 rsyslog-c7e9e2123ee71fb868bbcff59225e009e21af590.zip |
Merge branch 'v5-devel'
Conflicts:
ChangeLog
configure.ac
doc/manual.html
plugins/imuxsock/imuxsock.c
runtime/rsyslog.h
Diffstat (limited to 'runtime/hashtable/hashtable_utility.c')
-rw-r--r-- | runtime/hashtable/hashtable_utility.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/runtime/hashtable/hashtable_utility.c b/runtime/hashtable/hashtable_utility.c new file mode 100644 index 00000000..c3176709 --- /dev/null +++ b/runtime/hashtable/hashtable_utility.c @@ -0,0 +1,71 @@ +/* Copyright (C) 2002 Christopher Clark <firstname.lastname@cl.cam.ac.uk> */ + +#include "hashtable.h" +#include "hashtable_private.h" +#include "hashtable_utility.h" +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +/*****************************************************************************/ +/* hashtable_change + * + * function to change the value associated with a key, where there already + * exists a value bound to the key in the hashtable. + * Source due to Holger Schemel. + * + * */ +int +hashtable_change(struct hashtable *h, void *k, void *v) +{ + struct entry *e; + unsigned int hashvalue, index; + hashvalue = hash(h,k); + index = indexFor(h->tablelength,hashvalue); + e = h->table[index]; + while (NULL != e) + { + /* Check hash value to short circuit heavier comparison */ + if ((hashvalue == e->h) && (h->eqfn(k, e->k))) + { + free(e->v); + e->v = v; + return -1; + } + e = e->next; + } + return 0; +} + +/* + * Copyright (c) 2002, Christopher Clark + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * 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. + * + * * Neither the name of the original author; nor the names of any contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER + * 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. +*/ |