X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=includes%2FSMP.h;h=d985576cb4780a52bfc6edb99db1abbc8e8f06de;hb=b5f43414d0329b56abaaeb5e9e4708000e93670c;hp=5974c962add936413d76506066940fe06cf46224;hpb=0065d5ab628975892cea1ec7303f968c3338cbe1;p=ghc-hetmet.git

diff --git a/includes/SMP.h b/includes/SMP.h
index 5974c96..d985576 100644
--- a/includes/SMP.h
+++ b/includes/SMP.h
@@ -155,6 +155,21 @@ xchg(StgPtr p, StgWord w)
     return old;
 }
 
+INLINE_HEADER StgInfoTable *
+lockClosure(StgClosure *p)
+{ return (StgInfoTable *)p->header.info; }
+
+INLINE_HEADER void
+unlockClosure(StgClosure *p STG_UNUSED, StgInfoTable *info STG_UNUSED)
+{ /* nothing */ }
+
 #endif /* !THREADED_RTS */
 
+// Handy specialised versions of lockClosure()/unlockClosure()
+INLINE_HEADER void lockTSO(StgTSO *tso)
+{ lockClosure((StgClosure *)tso); }
+
+INLINE_HEADER void unlockTSO(StgTSO *tso)
+{ unlockClosure((StgClosure*)tso, (StgInfoTable*)&stg_TSO_info); }
+
 #endif /* SMP_H */