list/cds_list_for_each_entry_rcu.c \
list/cds_list_replace_rcu.c
+doc_examples_wfcqueuedir = ${doc_examplesdir}/wfcqueue
+
+dist_doc_examples_wfcqueue_DATA = \
+ wfcqueue/Makefile.cds_wfcq_enqueue \
+ wfcqueue/cds_wfcq_enqueue.c
+
if NO_SHARED
# Don't build examples if shared libraries support was explicitly
# disabled.
else
-SUBDIRS_PROXY = qsbr-minimal list
+SUBDIRS_PROXY = qsbr-minimal list wfcqueue
all-local:
for subdir in $(SUBDIRS_PROXY); do \
--- /dev/null
+# Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+#
+# THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+# OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+#
+# Permission is hereby granted to use or copy this program for any
+# purpose, provided the above notices are retained on all copies.
+# Permission to modify the code and to distribute modified code is
+# granted, provided the above notices are retained, and a notice that
+# the code was modified is included with the above copyright notice.
+#
+# This makefile is purposefully kept simple to support GNU and BSD make.
+
+EXAMPLE_NAME = cds_wfcq_enqueue
+
+SOURCES = $(EXAMPLE_NAME).c
+OBJECTS = $(EXAMPLE_NAME).o
+BINARY = $(EXAMPLE_NAME)
+LIBS = -lurcu-cds
+
+include ../Makefile.examples.template
--- /dev/null
+/*
+ * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program for any
+ * purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is
+ * granted, provided the above notices are retained, and a notice that
+ * the code was modified is included with the above copyright notice.
+ *
+ * This example shows how to enqueue nodes into a wfcqueue.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <urcu/wfcqueue.h> /* Wait-free concurrent queue */
+#include <urcu/compiler.h> /* For CAA_ARRAY_SIZE */
+
+/*
+ * Nodes populated into the queue.
+ */
+struct mynode {
+ int value; /* Node content */
+ struct cds_wfcq_node node; /* Chaining in queue */
+};
+
+int main(int argc, char **argv)
+{
+ int values[] = { -5, 42, 36, 24, };
+ struct cds_wfcq_head myqueue_head; /* Queue head */
+ struct cds_wfcq_tail myqueue_tail; /* Queue tail */
+ unsigned int i;
+ int ret = 0;
+ struct cds_wfcq_node *qnode;
+
+ cds_wfcq_init(&myqueue_head, &myqueue_tail);
+
+ /*
+ * Adding nodes to the linked-list. Safe against concurrent
+ * RCU traversals, require mutual exclusion with list updates.
+ */
+ for (i = 0; i < CAA_ARRAY_SIZE(values); i++) {
+ struct mynode *node;
+
+ node = malloc(sizeof(*node));
+ if (!node) {
+ ret = -1;
+ goto end;
+ }
+
+ cds_wfcq_node_init(&node->node);
+ node->value = values[i];
+ cds_wfcq_enqueue(&myqueue_head, &myqueue_tail,
+ &node->node);
+ }
+
+ /*
+ * Show the queue content.
+ */
+ printf("myqueue content:");
+ __cds_wfcq_for_each_blocking(&myqueue_head, &myqueue_tail, qnode) {
+ struct mynode *node =
+ caa_container_of(qnode, struct mynode, node);
+ printf(" %d", node->value);
+ }
+ printf("\n");
+end:
+ return ret;
+}
projects / userspace-rcu.git / commitdiff
