Esempio n. 1
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 // When finished, invoker must ensure that selector is empty
 // by cancelling any related keys and explicitly releasing
 // the selector by invoking releaseTemporarySelector()
 static Selector getTemporarySelector(SelectableChannel sc) throws IOException {
   SoftReference ref = (SoftReference) localSelector.get();
   SelectorWrapper selWrapper = null;
   Selector sel = null;
   if (ref == null
       || ((selWrapper = (SelectorWrapper) ref.get()) == null)
       || ((sel = selWrapper.get()) == null)
       || (sel.provider() != sc.provider())) {
     sel = sc.provider().openSelector();
     localSelector.set(new SoftReference(new SelectorWrapper(sel)));
   } else {
     localSelectorWrapper.set(selWrapper);
   }
   return sel;
 }
Esempio n. 2
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 public void run() {
   try {
     sel.close();
   } catch (Throwable th) {
     throw new Error(th);
   }
 }
Esempio n. 3
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 static void releaseTemporarySelector(Selector sel) throws IOException {
   // Selector should be empty
   sel.selectNow(); // Flush cancelled keys
   assert sel.keys().isEmpty() : "Temporary selector not empty";
   localSelectorWrapper.set(null);
 }