X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu-pointer-static.h;fp=urcu-pointer-static.h;h=0a01f1ffc944550d3c66cdf9b8d5a53c2a5c8225;hp=06b8881a5ad3d1549f93f48ee977d1efde4a93d6;hb=2b5554c9169ea1ef93dffacb7671a00f9e7de511;hpb=2ff1db4a7825af40f327413305de6f9955af0e35 diff --git a/urcu-pointer-static.h b/urcu-pointer-static.h index 06b8881..0a01f1f 100644 --- a/urcu-pointer-static.h +++ b/urcu-pointer-static.h @@ -71,12 +71,14 @@ * should not be freed !). */ -#define _rcu_cmpxchg_pointer(p, old, _new) \ - ({ \ - if (!__builtin_constant_p(_new) || \ - ((_new) != NULL)) \ - wmb(); \ - uatomic_cmpxchg(p, old, _new); \ +#define _rcu_cmpxchg_pointer(p, old, _new) \ + ({ \ + typeof(*p) _________pold = (old); \ + typeof(*p) _________pnew = (_new); \ + if (!__builtin_constant_p(_new) || \ + ((_new) != NULL)) \ + wmb(); \ + uatomic_cmpxchg(p, _________pold, _________pnew); \ }) /** @@ -87,19 +89,21 @@ #define _rcu_xchg_pointer(p, v) \ ({ \ + typeof(*p) _________pv = (v); \ if (!__builtin_constant_p(v) || \ ((v) != NULL)) \ wmb(); \ - uatomic_xchg(p, v); \ + uatomic_xchg(p, _________pv); \ }) #define _rcu_set_pointer(p, v) \ ({ \ + typeof(*p) _________pv = (v); \ if (!__builtin_constant_p(v) || \ ((v) != NULL)) \ wmb(); \ - STORE_SHARED(*(p), v); \ + STORE_SHARED(*(p), _________pv); \ }) /**