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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ART_SIMULATOR_CODE_SIMULATOR_CONTAINER_H_
     18 #define ART_SIMULATOR_CODE_SIMULATOR_CONTAINER_H_
     19 
     20 #include <android-base/logging.h>
     21 
     22 #include "arch/instruction_set.h"
     23 
     24 namespace art {
     25 
     26 class CodeSimulator;
     27 
     28 // This container dynamically opens and closes libart-simulator.
     29 class CodeSimulatorContainer {
     30  public:
     31   explicit CodeSimulatorContainer(InstructionSet target_isa);
     32   ~CodeSimulatorContainer();
     33 
     34   bool CanSimulate() const {
     35     return simulator_ != nullptr;
     36   }
     37 
     38   CodeSimulator* Get() {
     39     DCHECK(CanSimulate());
     40     return simulator_;
     41   }
     42 
     43   const CodeSimulator* Get() const {
     44     DCHECK(CanSimulate());
     45     return simulator_;
     46   }
     47 
     48  private:
     49   void* libart_simulator_handle_;
     50   CodeSimulator* simulator_;
     51 
     52   DISALLOW_COPY_AND_ASSIGN(CodeSimulatorContainer);
     53 };
     54 
     55 }  // namespace art
     56 
     57 #endif  // ART_SIMULATOR_CODE_SIMULATOR_CONTAINER_H_
     58