X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu-pointer.c;fp=urcu-pointer.c;h=1461c60f367b032276db9b301bf57e93488a063b;hp=0000000000000000000000000000000000000000;hb=7e30abe3df0e83eeb741bfc18d07cb016af804a1;hpb=074d8438a30f7da8ae12eb94caff69c37fb576bd

diff --git a/urcu-pointer.c b/urcu-pointer.c
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--- /dev/null
+++ b/urcu-pointer.c
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+
+/*
+ * urcu-pointer.c
+ *
+ * library wrappers to be used by non-LGPL compatible source code.
+ *
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
+ *
+ * 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 "urcu-pointer-static.h"
+/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
+#include "urcu-pointer.h"
+
+extern void synchronize_rcu(void);
+
+void *rcu_dereference(void *p)
+{
+	return _rcu_dereference(p);
+}
+
+void *rcu_set_pointer_sym(void **p, void *v)
+{
+	wmb();
+	return STORE_SHARED(*p, v);
+}
+
+void *rcu_xchg_pointer_sym(void **p, void *v)
+{
+	wmb();
+	return uatomic_xchg(p, v);
+}
+
+void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new)
+{
+	wmb();
+	return uatomic_cmpxchg(p, old, _new);
+}
+
+void *rcu_publish_content_sym(void **p, void *v)
+{
+	void *oldptr;
+
+	oldptr = _rcu_xchg_pointer(p, v);
+	synchronize_rcu();
+	return oldptr;
+}