X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Furcu%2Furcu-bp.h;h=152c53665ddf64bafdba1c507cdd5d093d3a2f2a;hb=d3d3857f678627e7bbfb5a8d6f3bc15cd2a694d9;hp=7b00aaa8d555130f2b2dcf733344571931624c24;hpb=4477a87021ffbfbfdb2a2084d05a084171343d36;p=urcu.git

diff --git a/include/urcu/urcu-bp.h b/include/urcu/urcu-bp.h
index 7b00aaa..152c536 100644
--- a/include/urcu/urcu-bp.h
+++ b/include/urcu/urcu-bp.h
@@ -1,45 +1,28 @@
+// SPDX-FileCopyrightText: 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+// SPDX-FileCopyrightText: 2009 Paul E. McKenney, IBM Corporation.
+//
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
 #ifndef _URCU_BP_H
 #define _URCU_BP_H
 
 /*
- * urcu-bp.h
- *
  * Userspace RCU header, "bulletproof" version.
  *
  * Slower RCU read-side adapted for tracing library. Does not require thread
  * registration nor unregistration. Also signal-safe.
  *
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
- *
  * LGPL-compatible code should include this header with :
  *
  * #define _LGPL_SOURCE
  * #include <urcu.h>
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
  * IBM's contributions to this file may be relicensed under LGPLv2 or later.
  */
 
 #include <stdlib.h>
 #include <pthread.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include <stdbool.h>
 
 #include <urcu/map/urcu-bp.h>
 
@@ -52,10 +35,15 @@ extern "C" {
  */
 
 /*
- * See urcu-pointer.h and urcu/static/urcu-pointer.h for pointer
+ * See urcu/pointer.h and urcu/static/pointer.h for pointer
  * publication headers.
  */
-#include <urcu-pointer.h>
+#include <urcu/pointer.h>
+#include <urcu/urcu-poll.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #ifdef _LGPL_SOURCE
 
@@ -85,7 +73,7 @@ extern "C" {
 
 /*
  * library wrappers to be used by non-LGPL compatible source code.
- * See LGPL-only urcu/static/urcu-pointer.h for documentation.
+ * See LGPL-only urcu/static/pointer.h for documentation.
  */
 
 extern void urcu_bp_read_lock(void);
@@ -140,6 +128,12 @@ 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 +145,14 @@ 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)
 {
 }
@@ -184,9 +180,9 @@ static inline void urcu_bp_thread_online(void)
 }
 #endif
 
-#include <urcu-call-rcu.h>
-#include <urcu-defer.h>
-#include <urcu-flavor.h>
+#include <urcu/call-rcu.h>
+#include <urcu/defer.h>
+#include <urcu/flavor.h>
 
 #ifndef URCU_API_MAP
 #include <urcu/map/clear.h>