| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.yoko.orb.OB; |
| |
| public interface DowncallEmitter { |
| // |
| // Send and receive downcalls |
| // |
| // - The first parameter is the downcall to send/receive |
| // |
| // - If the second parameter is set to false, send/receive will be |
| // done non-blocking. |
| // |
| // - If the return value is true, it's safe to access or modify |
| // the downcall object. If the return value if false, accessing |
| // or modifying the downcall object is not allowed, for thread |
| // safety reasons. (Because the downcall object is not thread |
| // safe.) |
| // |
| boolean send(Downcall down, boolean block); |
| |
| boolean receive(Downcall down, boolean block); |
| |
| // |
| // Send and receive downcalls with one operation (for efficiency |
| // reasons) |
| // |
| boolean sendReceive(Downcall down); |
| } |
