X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu-pointer-static.h;fp=urcu-pointer-static.h;h=0000000000000000000000000000000000000000;hp=b6444860f51143dca1bb3d5eb34e4bbd4a6ce1cd;hb=af7c2dbeac32c663b64ad05e4eca70e18784463b;hpb=acfd099eae9026369f558e73b2a7e35860962d9d

diff --git a/urcu-pointer-static.h b/urcu-pointer-static.h
deleted file mode 100644
index b644486..0000000
--- a/urcu-pointer-static.h
+++ /dev/null
@@ -1,132 +0,0 @@
-#ifndef _URCU_POINTER_STATIC_H
-#define _URCU_POINTER_STATIC_H
-
-/*
- * urcu-pointer-static.h
- *
- * Userspace RCU header. Operations on pointers.
- *
- * TO BE INCLUDED ONLY IN LGPL-COMPATIBLE CODE. See urcu-pointer.h for
- * linking dynamically with the userspace rcu library.
- *
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * 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/compiler.h>
-#include <urcu/arch.h>
-#include <urcu/system.h>
-#include <urcu/uatomic_arch.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif 
-
-/**
- * _rcu_dereference - reads (copy) a RCU-protected pointer to a local variable
- * into a RCU read-side critical section. The pointer can later be safely
- * dereferenced within the critical section.
- *
- * This ensures that the pointer copy is invariant thorough the whole critical
- * section.
- *
- * Inserts memory barriers on architectures that require them (currently only
- * Alpha) and documents which pointers are protected by RCU.
- *
- * The compiler memory barrier in CMM_LOAD_SHARED() ensures that value-speculative
- * optimizations (e.g. VSS: Value Speculation Scheduling) does not perform the
- * data read before the pointer read by speculating the value of the pointer.
- * Correct ordering is ensured because the pointer is read as a volatile access.
- * This acts as a global side-effect operation, which forbids reordering of
- * dependent memory operations. Note that such concern about dependency-breaking
- * optimizations will eventually be taken care of by the "memory_order_consume"
- * addition to forthcoming C++ standard.
- *
- * Should match rcu_assign_pointer() or rcu_xchg_pointer().
- */
-
-#define _rcu_dereference(p)     ({					\
-				typeof(p) _________p1 = CMM_LOAD_SHARED(p); \
-				cmm_smp_read_barrier_depends();		\
-				(_________p1);				\
-				})
-
-/**
- * _rcu_cmpxchg_pointer - same as rcu_assign_pointer, but tests if the pointer
- * is as expected by "old". If succeeds, returns the previous pointer to the
- * data structure, which can be safely freed after waiting for a quiescent state
- * using synchronize_rcu(). If fails (unexpected value), returns old (which
- * should not be freed !).
- */
-
-#define _rcu_cmpxchg_pointer(p, old, _new)				\
-	({								\
-		typeof(*p) _________pold = (old);			\
-		typeof(*p) _________pnew = (_new);			\
-		if (!__builtin_constant_p(_new) ||			\
-		    ((_new) != NULL))					\
-			cmm_wmb();						\
-		uatomic_cmpxchg(p, _________pold, _________pnew);	\
-	})
-
-/**
- * _rcu_xchg_pointer - same as rcu_assign_pointer, but returns the previous
- * pointer to the data structure, which can be safely freed after waiting for a
- * quiescent state using synchronize_rcu().
- */
-
-#define _rcu_xchg_pointer(p, v)				\
-	({						\
-		typeof(*p) _________pv = (v);		\
-		if (!__builtin_constant_p(v) ||		\
-		    ((v) != NULL))			\
-			cmm_wmb();				\
-		uatomic_xchg(p, _________pv);		\
-	})
-
-
-#define _rcu_set_pointer(p, v)				\
-	({						\
-		typeof(*p) _________pv = (v);		\
-		if (!__builtin_constant_p(v) || 	\
-		    ((v) != NULL))			\
-			cmm_wmb();				\
-		uatomic_set(p, _________pv);		\
-	})
-
-/**
- * _rcu_assign_pointer - assign (publicize) a pointer to a new data structure
- * meant to be read by RCU read-side critical sections. Returns the assigned
- * value.
- *
- * Documents which pointers will be dereferenced by RCU read-side critical
- * sections and adds the required memory barriers on architectures requiring
- * them. It also makes sure the compiler does not reorder code initializing the
- * data structure before its publication.
- *
- * Should match rcu_dereference_pointer().
- */
-
-#define _rcu_assign_pointer(p, v)	_rcu_set_pointer(&(p), v)
-
-#ifdef __cplusplus 
-}
-#endif
-
-#endif /* _URCU_POINTER_STATIC_H */