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// SPDX-FileCopyrightText: 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
//
// SPDX-License-Identifier: LGPL-2.1-or-later
#ifndef _URCU_RCULFSTACK_H
#define _URCU_RCULFSTACK_H
/*
* Userspace RCU library - Lock-Free RCU Stack
*/
#include <urcu/compiler.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef CDS_LFS_RCU_DEPRECATED
#define CDS_LFS_RCU_DEPRECATED \
CDS_DEPRECATED("urcu/rculfstack.h is deprecated. Please use urcu/lfstack.h instead.")
#endif
struct cds_lfs_node_rcu {
struct cds_lfs_node_rcu *next;
};
struct cds_lfs_stack_rcu {
struct cds_lfs_node_rcu *head;
};
#ifdef _LGPL_SOURCE
#include <urcu/static/rculfstack.h>
static inline CDS_LFS_RCU_DEPRECATED
void cds_lfs_node_init_rcu(struct cds_lfs_node_rcu *node)
{
_cds_lfs_node_init_rcu(node);
}
static inline
void cds_lfs_init_rcu(struct cds_lfs_stack_rcu *s)
{
_cds_lfs_init_rcu(s);
}
static inline CDS_LFS_RCU_DEPRECATED
int cds_lfs_push_rcu(struct cds_lfs_stack_rcu *s,
struct cds_lfs_node_rcu *node)
{
return _cds_lfs_push_rcu(s, node);
}
static inline CDS_LFS_RCU_DEPRECATED
struct cds_lfs_node_rcu *cds_lfs_pop_rcu(struct cds_lfs_stack_rcu *s)
{
return _cds_lfs_pop_rcu(s);
}
#else /* !_LGPL_SOURCE */
extern CDS_LFS_RCU_DEPRECATED
void cds_lfs_node_init_rcu(struct cds_lfs_node_rcu *node);
extern CDS_LFS_RCU_DEPRECATED
void cds_lfs_init_rcu(struct cds_lfs_stack_rcu *s);
extern CDS_LFS_RCU_DEPRECATED
int cds_lfs_push_rcu(struct cds_lfs_stack_rcu *s,
struct cds_lfs_node_rcu *node);
/*
* Should be called under rcu read lock critical section.
*
* The caller must wait for a grace period to pass before freeing the returned
* node or modifying the cds_lfs_node_rcu structure.
* Returns NULL if stack is empty.
*/
extern CDS_LFS_RCU_DEPRECATED
struct cds_lfs_node_rcu *cds_lfs_pop_rcu(struct cds_lfs_stack_rcu *s);
#endif /* !_LGPL_SOURCE */
#ifdef __cplusplus
}
#endif
#endif /* _URCU_RCULFSTACK_H */
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