| /* |
| * Copyright 2012, The Android Open Source Project |
| * |
| * Licensed 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 BCC_EXECUTION_ENGINE_FILE_MUTEX_H |
| #define BCC_EXECUTION_ENGINE_FILE_MUTEX_H |
| |
| #include <string> |
| |
| #include "FileBase.h" |
| |
| namespace bcc { |
| |
| template<enum FileBase::LockModeEnum LockMode> |
| class FileMutex : public FileBase { |
| public: |
| FileMutex(const std::string &pFileToLock) |
| : FileBase(pFileToLock + ".lock", O_RDONLY | O_CREAT, 0) { } |
| |
| // Provide a lock() interface filled with default configuration. |
| inline bool lock(bool pNonblocking = true, |
| unsigned pMaxRetry = FileBase::kDefaultMaxRetryLock, |
| useconds_t pRetryInterval = |
| FileBase::kDefaultRetryLockInterval) { |
| return FileBase::lock(LockMode, pNonblocking, pMaxRetry, pRetryInterval); |
| } |
| }; |
| |
| } // namespace bcc |
| |
| #endif // BCC_EXECUTION_ENGINE_FILE_MUTEX_H |