X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu.h;h=a0aac2195feea64a90043866950cfe0322eb0df7;hp=b46033f29090582749b949f30e2a6d95e2723c79;hb=efafc824ca148c6b2ca7f95dc86d2aaa38d4a923;hpb=af02d47e5d0712e5ccde6d8f1ee89f18de798cad diff --git a/urcu.h b/urcu.h index b46033f..a0aac21 100644 --- a/urcu.h +++ b/urcu.h @@ -34,6 +34,14 @@ #include #include +/* + * Important ! + * + * Each thread containing read-side critical sections must be registered + * with rcu_register_thread() before calling rcu_read_lock(). + * rcu_unregister_thread() should be called before the thread exits. + */ + #ifdef _LGPL_SOURCE #include @@ -48,6 +56,7 @@ #define rcu_read_unlock _rcu_read_unlock #define rcu_assign_pointer _rcu_assign_pointer +#define rcu_cmpxchg_pointer _rcu_cmpxchg_pointer #define rcu_xchg_pointer _rcu_xchg_pointer #define rcu_publish_content _rcu_publish_content @@ -65,7 +74,11 @@ extern void *rcu_dereference(void *p); extern void *rcu_assign_pointer_sym(void **p, void *v); #define rcu_assign_pointer(p, v) \ - rcu_assign_pointer_sym((void **)(p), (v)) + rcu_assign_pointer_sym((void **)(&(p)), (v)) + +extern void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new); +#define rcu_cmpxchg_pointer(p, old, _new) \ + rcu_cmpxchg_pointer_sym((void **)(p), (old), (_new)) extern void *rcu_xchg_pointer_sym(void **p, void *v); #define rcu_xchg_pointer(p, v) \ @@ -85,4 +98,9 @@ extern void synchronize_rcu(void); extern void rcu_register_thread(void); extern void rcu_unregister_thread(void); +/* + * Explicit urcu initialization, for "early" use within library constructors. + */ +extern void urcu_init(void); + #endif /* _URCU_H */