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doc/examples: enhance rcu-flavor-qsbr example
[urcu.git]
/
doc
/
examples
/
rcu-flavor-qsbr
/
rcu-flavor-qsbr.c
diff --git
a/doc/examples/rcu-flavor-qsbr/rcu-flavor-qsbr.c
b/doc/examples/rcu-flavor-qsbr/rcu-flavor-qsbr.c
index a7a6ff45e01269b5f22b6ec0916064a653390511..2b722c0a1e0dcf1fda29236534b6f99758be6379 100644
(file)
--- a/
doc/examples/rcu-flavor-qsbr/rcu-flavor-qsbr.c
+++ b/
doc/examples/rcu-flavor-qsbr/rcu-flavor-qsbr.c
@@
-16,16
+16,15
@@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#define _LGPL_SOURCE
-#include <urcu-qsbr.h>
-#include <urcu/rculist.h>
-#include <urcu/compiler.h>
-
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <inttypes.h>
+#include <urcu-qsbr.h> /* QSBR RCU flavor */
+#include <urcu/rculist.h> /* List example */
+#include <urcu/compiler.h> /* For CAA_ARRAY_SIZE */
+
/*
* This is a mock-up example where updates and RCU traversals are
* performed by the same thread to keep things simple on purpose.
/*
* This is a mock-up example where updates and RCU traversals are
* performed by the same thread to keep things simple on purpose.
@@
-110,7
+109,9
@@
int main(int argc, char **argv)
/*
* For QSBR flavor, we need to explicitly announce quiescent
/*
* For QSBR flavor, we need to explicitly announce quiescent
- * states.
+ * states. Here is how it is done. This should be performed by
+ * every online registered RCU threads in the program
+ * periodically.
*/
rcu_quiescent_state();
*/
rcu_quiescent_state();
@@
-127,7
+128,8
@@
int main(int argc, char **argv)
/*
* Waiting for previously called call_rcu handlers to complete
/*
* Waiting for previously called call_rcu handlers to complete
- * before program exits is a good practice.
+ * before program exits, or in library destructors, is a good
+ * practice.
*/
rcu_barrier();
*/
rcu_barrier();
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