| 1 | // SPDX-FileCopyrightText: 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 2 | // |
| 3 | // SPDX-License-Identifier: LGPL-2.1-or-later |
| 4 | |
| 5 | #ifndef _URCU_RCULFSTACK_H |
| 6 | #define _URCU_RCULFSTACK_H |
| 7 | |
| 8 | /* |
| 9 | * Userspace RCU library - Lock-Free RCU Stack |
| 10 | */ |
| 11 | |
| 12 | #include <urcu/compiler.h> |
| 13 | |
| 14 | #ifdef __cplusplus |
| 15 | extern "C" { |
| 16 | #endif |
| 17 | |
| 18 | #ifndef CDS_LFS_RCU_DEPRECATED |
| 19 | #define CDS_LFS_RCU_DEPRECATED \ |
| 20 | CDS_DEPRECATED("urcu/rculfstack.h is deprecated. Please use urcu/lfstack.h instead.") |
| 21 | #endif |
| 22 | |
| 23 | struct cds_lfs_node_rcu { |
| 24 | struct cds_lfs_node_rcu *next; |
| 25 | }; |
| 26 | |
| 27 | struct cds_lfs_stack_rcu { |
| 28 | struct cds_lfs_node_rcu *head; |
| 29 | }; |
| 30 | |
| 31 | #ifdef _LGPL_SOURCE |
| 32 | |
| 33 | #include <urcu/static/rculfstack.h> |
| 34 | |
| 35 | static inline CDS_LFS_RCU_DEPRECATED |
| 36 | void cds_lfs_node_init_rcu(struct cds_lfs_node_rcu *node) |
| 37 | { |
| 38 | _cds_lfs_node_init_rcu(node); |
| 39 | } |
| 40 | |
| 41 | static inline |
| 42 | void cds_lfs_init_rcu(struct cds_lfs_stack_rcu *s) |
| 43 | { |
| 44 | _cds_lfs_init_rcu(s); |
| 45 | } |
| 46 | |
| 47 | static inline CDS_LFS_RCU_DEPRECATED |
| 48 | int cds_lfs_push_rcu(struct cds_lfs_stack_rcu *s, |
| 49 | struct cds_lfs_node_rcu *node) |
| 50 | { |
| 51 | return _cds_lfs_push_rcu(s, node); |
| 52 | } |
| 53 | |
| 54 | static inline CDS_LFS_RCU_DEPRECATED |
| 55 | struct cds_lfs_node_rcu *cds_lfs_pop_rcu(struct cds_lfs_stack_rcu *s) |
| 56 | { |
| 57 | return _cds_lfs_pop_rcu(s); |
| 58 | } |
| 59 | |
| 60 | #else /* !_LGPL_SOURCE */ |
| 61 | |
| 62 | extern CDS_LFS_RCU_DEPRECATED |
| 63 | void cds_lfs_node_init_rcu(struct cds_lfs_node_rcu *node); |
| 64 | extern CDS_LFS_RCU_DEPRECATED |
| 65 | void cds_lfs_init_rcu(struct cds_lfs_stack_rcu *s); |
| 66 | extern CDS_LFS_RCU_DEPRECATED |
| 67 | int cds_lfs_push_rcu(struct cds_lfs_stack_rcu *s, |
| 68 | struct cds_lfs_node_rcu *node); |
| 69 | |
| 70 | /* |
| 71 | * Should be called under rcu read lock critical section. |
| 72 | * |
| 73 | * The caller must wait for a grace period to pass before freeing the returned |
| 74 | * node or modifying the cds_lfs_node_rcu structure. |
| 75 | * Returns NULL if stack is empty. |
| 76 | */ |
| 77 | extern CDS_LFS_RCU_DEPRECATED |
| 78 | struct cds_lfs_node_rcu *cds_lfs_pop_rcu(struct cds_lfs_stack_rcu *s); |
| 79 | |
| 80 | #endif /* !_LGPL_SOURCE */ |
| 81 | |
| 82 | #ifdef __cplusplus |
| 83 | } |
| 84 | #endif |
| 85 | |
| 86 | #endif /* _URCU_RCULFSTACK_H */ |