| /************************************************************** |
| * |
| * 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. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef __FRAMEWORK_THREADHELP_IGUARD_H_ |
| #define __FRAMEWORK_THREADHELP_IGUARD_H_ |
| |
| //_________________________________________________________________________________________________________________ |
| // includes |
| //_________________________________________________________________________________________________________________ |
| |
| #include <sal/types.h> |
| |
| //_________________________________________________________________________________________________________________ |
| // namespace |
| //_________________________________________________________________________________________________________________ |
| |
| namespace framework{ |
| |
| //_________________________________________________________________________________________________________________ |
| // declarations |
| //_________________________________________________________________________________________________________________ |
| |
| /*-************************************************************************************************************//** |
| @descr interface for guarding a lock |
| *//*-*************************************************************************************************************/ |
| class SAL_NO_VTABLE IGuard |
| { |
| //------------------------------------------------------------------------------------------------------------- |
| // public methods |
| //------------------------------------------------------------------------------------------------------------- |
| public: |
| |
| /** clears the lock. If the guard does not currently hold the lock, nothing happens. |
| */ |
| virtual void clear() = 0; |
| |
| /** attempts to re-establishes the lock, blocking until the attempt is successful. |
| */ |
| virtual void reset() = 0; |
| |
| }; // class IGuard |
| |
| } // namespace framework |
| |
| #endif // #ifndef __FRAMEWORK_THREADHELP_IGUARD_H_ |
