ICU-1532 add internal non-mutexed _registerInstance

X-SVN-Rev: 8844

icu4c/source/i18n/translit.cpp

@@ -1102,6 +1102,10 @@ void Transliterator::registerInstance(Transliterator* adoptedPrototype) {
         initializeRegistry();
     }
     Mutex lock(&registryMutex);
+    _registerInstance(adoptedPrototype);
+}
+
+void Transliterator::_registerInstance(Transliterator* adoptedPrototype) {
     registry->put(adoptedPrototype, TRUE);
 }
 

icu4c/source/i18n/unicode/translit.h

@@ -823,6 +823,11 @@ protected:
                                  Factory factory,
                                  Token context);
 
+    /**
+     * @internal
+     */
+    static void _registerInstance(Transliterator* adoptedObj);
+
     /**
      * Register two targets as being inverses of one another.  For
      * example, calling registerSpecialInverse("NFC", "NFD", true) causes