src/hb-atomic-private.hh | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
New commits:
commit 70b33edae7c8b9c031b83c95f00cb383789f1041
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Thu Dec 10 15:54:42 2015 +0100
Add atomic ops for AIX
Patch from Volker Simonis.
diff --git a/src/hb-atomic-private.hh b/src/hb-atomic-private.hh
index 8179571..b49f808 100644
--- a/src/hb-atomic-private.hh
+++ b/src/hb-atomic-private.hh
@@ -119,6 +119,31 @@ typedef unsigned int hb_atomic_int_impl_t;
#define hb_atomic_ptr_impl_cmpexch(P,O,N) ( ({__machine_rw_barrier ();}),
atomic_cas_ptr ((void **) (P), (void *) (O), (void *) (N)) == (void *) (O) ?
true : false)
+#elif !defined(HB_NO_MT) && defined(_AIX)
+
+#include <builtins.h>
+
+
+static inline int hb_fetch_and_add(volatile int* AI, unsigned int V) {
+ __lwsync();
+ int result = __fetch_and_add(AI, V);
+ __isync();
+ return result;
+}
+static inline int hb_compare_and_swaplp(volatile long* P, long O, long N) {
+ __sync();
+ int result = __compare_and_swaplp (P, &O, N);
+ __sync();
+ return result;
+}
+
+typedef int hb_atomic_int_impl_t;
+#define HB_ATOMIC_INT_IMPL_INIT(V) (V)
+#define hb_atomic_int_impl_add(AI, V) hb_fetch_and_add (&(AI), (V))
+
+#define hb_atomic_ptr_impl_get(P) (__sync(), (void *) *(P))
+#define hb_atomic_ptr_impl_cmpexch(P,O,N) hb_compare_and_swaplp
((long*)(P), (long)(O), (long)(N))
+
#elif !defined(HB_NO_MT)
#define HB_ATOMIC_INT_NIL 1 /* Warn that fallback implementation is in use. */
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