urcu-memb,mb,signal: Implement grace period polling

[urcu.git] / include / urcu / urcu-bp.h

diff --git a/include/urcu/urcu-bp.h b/include/urcu/urcu-bp.h
index d3d122d0f71df610a0276af0e3e5043a6adf4ee7..7eefa0ea70e2eb832e712338890db1e7d4710798 100644 (file)
--- a/include/urcu/urcu-bp.h
+++ b/include/urcu/urcu-bp.h
@@ -36,10 +36,7 @@
 
 #include <stdlib.h>
 #include <pthread.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include <stdbool.h>
 
 #include <urcu/map/urcu-bp.h>
 
@@ -56,6 +53,11 @@ extern "C" {
  * publication headers.
  */
 #include <urcu/pointer.h>
+#include <urcu/urcu-poll.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #ifdef _LGPL_SOURCE
 
@@ -140,6 +142,12 @@ extern void *urcu_bp_set_pointer_sym(void **p, void *v);
 
 extern void urcu_bp_synchronize_rcu(void);
 
+/*
+ * RCU grace period polling API.
+ */
+extern struct urcu_gp_poll_state urcu_bp_start_poll_synchronize_rcu(void);
+extern bool urcu_bp_poll_state_synchronize_rcu(struct urcu_gp_poll_state state);
+
 /*
  * urcu_bp_before_fork, urcu_bp_after_fork_parent and urcu_bp_after_fork_child
  * should be called around fork() system calls when the child process is not
@@ -151,12 +159,14 @@ extern void urcu_bp_after_fork_parent(void);
 extern void urcu_bp_after_fork_child(void);
 
 /*
- * In the bulletproof version, the following functions are no-ops.
+ * In the bulletproof version, thread registration is performed lazily,
+ * but it can be forced by issuing an explicit urcu_bp_register_thread().
  */
-static inline void urcu_bp_register_thread(void)
-{
-}
+extern void urcu_bp_register_thread(void);
 
+/*
+ * In the bulletproof version, the following functions are no-ops.
+ */
 static inline void urcu_bp_unregister_thread(void)
 {
 }