From 70b33edae7c8b9c031b83c95f00cb383789f1041 Mon Sep 17 00:00:00 2001 From: Behdad Esfahbod Date: Thu, 10 Dec 2015 15:54:42 +0100 Subject: [PATCH] Add atomic ops for AIX Patch from Volker Simonis. --- src/hb-atomic-private.hh | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) 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 + + +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. */ -- 2.7.4