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1 | /* |
2 | * rcuja/rcuja-hashtable.c | |
3 | * | |
4 | * Userspace RCU library - RCU Judy Array Shadow Node Hash Table | |
5 | * | |
6 | * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
7 | * | |
8 | * This library is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
12 | * | |
13 | * This library is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with this library; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #define _LGPL_SOURCE | |
24 | #include <stdint.h> | |
25 | #include <errno.h> | |
26 | #include <limits.h> | |
27 | ||
28 | /* | |
29 | * The hash table used by judy array updates only for the shadow node | |
30 | * mapping rely on standard urcu_mb flavor. It does not put any | |
31 | * requirement on the RCU flavor used by applications using the judy | |
32 | * array. | |
33 | */ | |
34 | #include <urcu.h> | |
35 | ||
36 | #include <urcu/rcuja.h> | |
37 | #include <urcu/compiler.h> | |
38 | #include <urcu/arch.h> | |
39 | #include <assert.h> | |
40 | #include <urcu-pointer.h> | |
41 | ||
42 | #include "rcuja-internal.h" | |
43 | #include "bitfield.h" | |
44 | ||
45 | __attribute__((visibility("protected"))) | |
46 | struct cds_lfht *rcuja_create_ht(void) | |
47 | { | |
48 | return cds_lfht_new(1, 1, 0, | |
49 | CDS_LFHT_AUTO_RESIZE | CDS_LFHT_ACCOUNTING, | |
50 | NULL); | |
51 | } | |
52 | ||
53 | __attribute__((visibility("protected"))) | |
54 | void rcuja_delete_ht(struct cds_lfht *ht) | |
55 | { | |
56 | int ret; | |
57 | ||
58 | ret = cds_lfht_destroy(ht, NULL); | |
59 | assert(!ret); | |
60 | } |