| /* Copyright 2020 The TensorFlow Authors. All Rights Reserved. |
| |
| 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 TENSORFLOW_CORE_TPU_TPU_INITIALIZER_HELPER_H_ |
| #define TENSORFLOW_CORE_TPU_TPU_INITIALIZER_HELPER_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| namespace tensorflow { |
| namespace tpu { |
| |
| // This will acquire a system-wide lock on behalf of the whole process. Follow |
| // up calls to this function will return true if the lock has been acquired and |
| // false if we failed to acquire the lock. |
| bool TryAcquireTpuLock(); |
| |
| // Returns arguments (e.g. flags) set in the LIBTPU_INIT_ARGS environment |
| // variable. The first return value is the arguments, the second return value is |
| // pointers to the arguments suitable for passing into the C API. |
| std::pair<std::vector<std::string>, std::vector<const char*>> |
| GetLibTpuInitArguments(); |
| |
| } // namespace tpu |
| } // namespace tensorflow |
| |
| #endif // TENSORFLOW_CORE_TPU_TPU_INITIALIZER_HELPER_H_ |