From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Date: Sat, 3 May 2008 00:33:02 +0200
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Subject: [Xenomai-core] [Patch 3/7] Define more atomic operations in
	user-space
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To: xenomai@xenomai.org


This patch now only implement the _get, _set and _cmpxchg operations for the new
xnarch_atomic_intptr_t type. Since xnarch_atomic_t is now a long type, the
atomic_long_t is no longer needed.

---
 Makefile.am |    2 +-
 atomic.h    |   24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

Index: include/asm-generic/atomic.h
===================================================================
--- include/asm-generic/atomic.h	(revision 0)
+++ include/asm-generic/atomic.h	(revision 0)
@@ -0,0 +1,24 @@
+#ifndef _XENO_ASM_GENERIC_ATOMIC_H
+#define _XENO_ASM_GENERIC_ATOMIC_H
+
+typedef xnarch_atomic_t xnarch_atomic_intptr_t;
+
+static inline void *xnarch_atomic_intptr_get(xnarch_atomic_intptr_t *l)
+{
+        xnarch_atomic_t *v = (xnarch_atomic_t *)l;
+
+        return (void *)xnarch_atomic_get(v);
+}
+
+static inline void xnarch_atomic_intptr_set(xnarch_atomic_intptr_t *l, void *i)
+{
+        xnarch_atomic_t *v = (xnarch_atomic_t *)l;
+
+        xnarch_atomic_set(v, (long)i);
+}
+
+#define xnarch_atomic_intptr_cmpxchg(l, old, new) \
+        (void *)(xnarch_atomic_cmpxchg((xnarch_atomic_t *)(l), \
+				       (long)(old), (long)(new)))
+
+#endif /* _XENO_ASM_GENERIC_ATOMIC_H */
Index: include/asm-generic/Makefile.am
===================================================================
--- include/asm-generic/Makefile.am	(revision 3738)
+++ include/asm-generic/Makefile.am	(working copy)
@@ -1,5 +1,5 @@
 includesubdir = $(includedir)/asm-generic
 
-includesub_HEADERS = arith.h features.h hal.h syscall.h system.h wrappers.h
+includesub_HEADERS = arith.h atomic.h features.h hal.h syscall.h system.h wrappers.h
 
 SUBDIRS = bits

-- 


					    Gilles.