X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=urcu-pointer-static.h;h=c8ac7f0c0861a2d80e20e935dddf99303693fa75;hp=c0533c9d3281af0f613e7490ce18e67594bf75e4;hb=5481ddb381061bda64aebc039900d21cac6a6caf;hpb=e156285068a631eaafa643d9e930b31780468d00 diff --git a/urcu-pointer-static.h b/urcu-pointer-static.h index c0533c9..c8ac7f0 100644 --- a/urcu-pointer-static.h +++ b/urcu-pointer-static.h @@ -9,7 +9,7 @@ * 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 + * Copyright (c) 2009 Mathieu Desnoyers * Copyright (c) 2009 Paul E. McKenney, IBM Corporation. * * This library is free software; you can redistribute it and/or @@ -34,6 +34,10 @@ #include #include +#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 @@ -59,7 +63,7 @@ #define _rcu_dereference(p) ({ \ typeof(p) _________p1 = LOAD_SHARED(p); \ - smp_read_barrier_depends(); \ + cmm_smp_read_barrier_depends(); \ (_________p1); \ }) @@ -77,11 +81,8 @@ typeof(*p) _________pnew = (_new); \ if (!__builtin_constant_p(_new) || \ ((_new) != NULL)) \ - wmb(); \ - (likely(URCU_CAS_AVAIL()) ? \ - (uatomic_cmpxchg(p, _________pold, _________pnew)) : \ - (compat_uatomic_cmpxchg(p, _________pold, \ - _________pnew))) \ + cmm_wmb(); \ + uatomic_cmpxchg(p, _________pold, _________pnew); \ }) /** @@ -95,7 +96,7 @@ typeof(*p) _________pv = (v); \ if (!__builtin_constant_p(v) || \ ((v) != NULL)) \ - wmb(); \ + cmm_wmb(); \ uatomic_xchg(p, _________pv); \ }) @@ -105,8 +106,8 @@ typeof(*p) _________pv = (v); \ if (!__builtin_constant_p(v) || \ ((v) != NULL)) \ - wmb(); \ - STORE_SHARED(*(p), _________pv); \ + cmm_wmb(); \ + uatomic_set(p, _________pv); \ }) /** @@ -124,4 +125,8 @@ #define _rcu_assign_pointer(p, v) _rcu_set_pointer(&(p), v) +#ifdef __cplusplus +} +#endif + #endif /* _URCU_POINTER_STATIC_H */