struct cds_wfs_node node;
};
+struct __cds_wfs_stack {
+ struct cds_wfs_head *head;
+};
+
struct cds_wfs_stack {
struct cds_wfs_head *head;
pthread_mutex_t lock;
};
+/*
+ * The transparent union allows calling functions that work on both
+ * struct cds_wfs_stack and struct __cds_wfs_stack on any of those two
+ * types.
+ */
+typedef union __attribute__((__transparent_union__)) {
+ struct __cds_wfs_stack *_s;
+ struct cds_wfs_stack *s;
+} cds_wfs_stack_ptr_t;
+
#ifdef _LGPL_SOURCE
#include <urcu/static/wfstack.h>
*/
extern void cds_wfs_init(struct cds_wfs_stack *s);
+/*
+ * __cds_wfs_init: initialize wait-free stack.
+ */
+extern void __cds_wfs_init(struct __cds_wfs_stack *s);
+
/*
* cds_wfs_empty: return whether wait-free stack is empty.
*
* No memory barrier is issued. No mutual exclusion is required.
*/
-extern bool cds_wfs_empty(struct cds_wfs_stack *s);
+extern bool cds_wfs_empty(cds_wfs_stack_ptr_t u_stack);
/*
* cds_wfs_push: push a node into the stack.
* Returns 0 if the stack was empty prior to adding the node.
* Returns non-zero otherwise.
*/
-extern int cds_wfs_push(struct cds_wfs_stack *s, struct cds_wfs_node *node);
+extern int cds_wfs_push(cds_wfs_stack_ptr_t u_stack, struct cds_wfs_node *node);
/*
* cds_wfs_pop_blocking: pop a node from the stack.