Integrate perlio:

[p5sagit/p5-mst-13.2.git] / thread.h

diff --git a/thread.h b/thread.h
index 99269a1..4744aa0 100644 (file)
--- a/thread.h
+++ b/thread.h
@@ -249,8 +249,22 @@
     } STMT_END
 #endif /* JOIN */
 
+/* Use an unchecked fetch of thread-specific data instead of a checked one.
+ * It would fail if the key were bogus, but if the key were bogus then
+ * Really Bad Things would be happening anyway. --dan */
+#if (defined(__ALPHA) && (__VMS_VER >= 70000000)) || \
+    (defined(__alpha) && defined(__osf__)) /* Available only on >= 4.0 */
+#  define HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP /* Configure test needed */
+#endif
+
+#ifdef HAS_PTHREAD_UNCHECKED_GETSPECIFIC_NP
+#  define PTHREAD_GETSPECIFIC(key) pthread_unchecked_getspecific_np(key)
+#else
+#  define PTHREAD_GETSPECIFIC(key) pthread_getspecific(key)
+#endif
+
 #ifndef PERL_GET_CONTEXT
-#  define PERL_GET_CONTEXT     pthread_getspecific(PL_thr_key)
+#  define PERL_GET_CONTEXT     PTHREAD_GETSPECIFIC(PL_thr_key)
 #endif
 
 #ifndef PERL_SET_CONTEXT