From f88dc6eecb56222688275893e2a891d8ec23d1d6 Mon Sep 17 00:00:00 2001 From: Christophe Fergeau Date: Fri, 22 Apr 2011 13:31:48 +0200 Subject: [PATCH] server: use gcc builtin for atomic get/set bit --- server/red_worker.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/server/red_worker.h b/server/red_worker.h index ae2eaeec..b4e2ed2e 100644 --- a/server/red_worker.h +++ b/server/red_worker.h @@ -23,12 +23,14 @@ static inline void set_bit(int index, uint32_t *addr) { - __asm__ __volatile__ ("lock btsl %1, %0": : "m" (*addr), "r" (index)); + uint32_t mask = 1 << index; + __sync_or_and_fetch(addr, mask); } static inline void clear_bit(int index, uint32_t *addr) { - __asm__ __volatile__ ("lock btrl %1, %0": : "m" (*addr), "r" (index)); + uint32_t mask = ~(1 << index); + __sync_and_and_fetch(addr, mask); } static inline int test_bit(int index, uint32_t val)