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// SPDX-FileCopyrightText: 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
//
// SPDX-License-Identifier: MIT
/*
* This example shows how to push nodes into a lfstack.
*/
#include <stdio.h>
#include <stdlib.h>
#include <urcu/lfstack.h> /* Lock-free stack */
#include <urcu/compiler.h> /* For CAA_ARRAY_SIZE */
/*
* Nodes populated into the stack.
*/
struct mynode {
int value; /* Node content */
struct cds_lfs_node node; /* Chaining in stack */
};
int main(void)
{
int values[] = { -5, 42, 36, 24, };
struct cds_lfs_stack mystack; /* Stack */
unsigned int i;
int ret = 0;
struct cds_lfs_node *snode;
struct cds_lfs_head *shead;
cds_lfs_init(&mystack);
/*
* Push nodes.
*/
for (i = 0; i < CAA_ARRAY_SIZE(values); i++) {
struct mynode *node;
node = malloc(sizeof(*node));
if (!node) {
ret = -1;
goto end;
}
cds_lfs_node_init(&node->node);
node->value = values[i];
cds_lfs_push(&mystack, &node->node);
}
/*
* Show the stack content, iterate in reverse order of push,
* from newest to oldest.
*/
printf("mystack content:");
shead = cds_lfs_pop_all_blocking(&mystack);
cds_lfs_for_each(shead, snode) {
struct mynode *node =
caa_container_of(snode, struct mynode, node);
printf(" %d", node->value);
}
printf("\n");
end:
cds_lfs_destroy(&mystack);
return ret;
}
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