| 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 | } |