projects / urcu.git / blame
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|---|---|---|
| cb3f3d6b MD |
1 | #ifndef _URCU_WFSTACK_H |
| 2 | #define _URCU_WFSTACK_H | |
| 3 | ||
| 4 | /* | |
| 294d3396 | 5 | * wfstack.h |
| cb3f3d6b MD |
6 | * |
| 7 | * Userspace RCU library - Stack with Wait-Free push, Blocking pop. | |
| 8 | * | |
| 9 | * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 10 | * | |
| 11 | * This library is free software; you can redistribute it and/or | |
| 12 | * modify it under the terms of the GNU Lesser General Public | |
| 13 | * License as published by the Free Software Foundation; either | |
| 14 | * version 2.1 of the License, or (at your option) any later version. | |
| 15 | * | |
| 16 | * This library is distributed in the hope that it will be useful, | |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 19 | * Lesser General Public License for more details. | |
| 20 | * | |
| 21 | * You should have received a copy of the GNU Lesser General Public | |
| 22 | * License along with this library; if not, write to the Free Software | |
| 23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 24 | */ | |
| 25 | ||
| 26 | #include <pthread.h> | |
| 27 | #include <assert.h> | |
| 28 | #include <urcu/compiler.h> | |
| 29 | ||
| 30 | #ifdef __cplusplus | |
| 31 | extern "C" { | |
| 32 | #endif | |
| 33 | ||
| 16aa9ee8 DG |
34 | struct cds_wfs_node { |
| 35 | struct cds_wfs_node *next; | |
| cb3f3d6b MD |
36 | }; |
| 37 | ||
| 16aa9ee8 DG |
38 | struct cds_wfs_stack { |
| 39 | struct cds_wfs_node *head; | |
| cb3f3d6b MD |
40 | pthread_mutex_t lock; |
| 41 | }; | |
| 42 | ||
| 294d3396 | 43 | #ifdef _LGPL_SOURCE |
| cb3f3d6b | 44 | |
| af7c2dbe | 45 | #include <urcu/static/wfstack.h> |
| cb3f3d6b | 46 | |
| 16aa9ee8 DG |
47 | #define cds_wfs_node_init _cds_wfs_node_init |
| 48 | #define cds_wfs_init _cds_wfs_init | |
| 49 | #define cds_wfs_push _cds_wfs_push | |
| 50 | #define __cds_wfs_pop_blocking ___cds_wfs_pop_blocking | |
| 51 | #define cds_wfs_pop_blocking _cds_wfs_pop_blocking | |
| cb3f3d6b | 52 | |
| 294d3396 | 53 | #else /* !_LGPL_SOURCE */ |
| cb3f3d6b | 54 | |
| 16aa9ee8 DG |
55 | extern void cds_wfs_node_init(struct cds_wfs_node *node); |
| 56 | extern void cds_wfs_init(struct cds_wfs_stack *s); | |
| 191098fc | 57 | extern int cds_wfs_push(struct cds_wfs_stack *s, struct cds_wfs_node *node); |
| 16aa9ee8 DG |
58 | /* __cds_wfs_pop_blocking: caller ensures mutual exclusion between pops */ |
| 59 | extern struct cds_wfs_node *__cds_wfs_pop_blocking(struct cds_wfs_stack *s); | |
| 60 | extern struct cds_wfs_node *cds_wfs_pop_blocking(struct cds_wfs_stack *s); | |
| cb3f3d6b | 61 | |
| 294d3396 | 62 | #endif /* !_LGPL_SOURCE */ |
| cb3f3d6b MD |
63 | |
| 64 | #ifdef __cplusplus | |
| 65 | } | |
| 66 | #endif | |
| 67 | ||
| 68 | #endif /* _URCU_WFSTACK_H */ |