1 /* Copyright 2019 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #include "tensorflow/core/util/xla_config_registry.h" 17 18 #include "tensorflow/core/platform/logging.h" 19 20 namespace tensorflow { 21 22 namespace xla_config_registry { 23 24 namespace { 25 struct GlobalJitLevelState { 26 mutex mu; 27 GlobalJitLevelGetterTy getter TF_GUARDED_BY(mu); 28 }; 29 GetSingletonState()30GlobalJitLevelState* GetSingletonState() { 31 static GlobalJitLevelState* state = new GlobalJitLevelState; 32 return state; 33 } 34 } // namespace 35 RegisterGlobalJitLevelGetter(GlobalJitLevelGetterTy getter)36void RegisterGlobalJitLevelGetter(GlobalJitLevelGetterTy getter) { 37 GlobalJitLevelState* state = GetSingletonState(); 38 mutex_lock l(state->mu); 39 CHECK(!state->getter); 40 state->getter = std::move(getter); 41 } 42 GetGlobalJitLevel(OptimizerOptions::GlobalJitLevel jit_level_in_session_opts)43XlaGlobalJitLevel GetGlobalJitLevel( 44 OptimizerOptions::GlobalJitLevel jit_level_in_session_opts) { 45 GlobalJitLevelState* state = GetSingletonState(); 46 mutex_lock l(state->mu); 47 if (!state->getter) { 48 return {jit_level_in_session_opts, jit_level_in_session_opts}; 49 } 50 return state->getter(jit_level_in_session_opts); 51 } 52 53 } // namespace xla_config_registry 54 55 } // namespace tensorflow 56