fix: handle EINTR correctly in get_cpu_mask_from_sysfs

[urcu.git] / doc / examples / wfcqueue / cds_wfcq_enqueue.c

diff --git a/doc/examples/wfcqueue/cds_wfcq_enqueue.c b/doc/examples/wfcqueue/cds_wfcq_enqueue.c
index b5dc1471f6bbcc109d300be81a3254456044ab3d..374ca72c9791d268b58cfeef1561b2a9040f9550 100644 (file)
--- a/doc/examples/wfcqueue/cds_wfcq_enqueue.c
+++ b/doc/examples/wfcqueue/cds_wfcq_enqueue.c
@@ -1,15 +1,8 @@
+// SPDX-FileCopyrightText: 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+//
+// SPDX-License-Identifier: MIT
+
 /*
- * 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.
  */
 
@@ -27,7 +20,7 @@ struct mynode {
        struct cds_wfcq_node node;      /* Chaining in queue */
 };
 
-int main(int argc, char **argv)
+int main(void)
 {
        int values[] = { -5, 42, 36, 24, };
        struct cds_wfcq_head myqueue_head;      /* Queue head */
@@ -39,8 +32,7 @@ int main(int argc, char **argv)
        cds_wfcq_init(&myqueue_head, &myqueue_tail);
 
        /*
-        * Adding nodes to the linked-list. Safe against concurrent
-        * RCU traversals, require mutual exclusion with list updates.
+        * Enqueue nodes.
         */
        for (i = 0; i < CAA_ARRAY_SIZE(values); i++) {
                struct mynode *node;
@@ -58,7 +50,8 @@ int main(int argc, char **argv)
        }
 
        /*
-        * Show the queue content.
+        * Show the queue content, iterate in the same order nodes were
+        * enqueued, from oldest to newest.
         */
        printf("myqueue content:");
        __cds_wfcq_for_each_blocking(&myqueue_head, &myqueue_tail, qnode) {
@@ -68,5 +61,6 @@ int main(int argc, char **argv)
        }
        printf("\n");
 end:
+       cds_wfcq_destroy(&myqueue_head, &myqueue_tail);
        return ret;
 }