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      1 /*
      2  * Copyright (C) 2013 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_COMPILER_OUTPUT_STREAM_H_
     18 #define ART_COMPILER_OUTPUT_STREAM_H_
     19 
     20 #include <stdint.h>
     21 
     22 #include <string>
     23 
     24 #include "base/macros.h"
     25 
     26 namespace art {
     27 
     28 enum Whence {
     29   kSeekSet = SEEK_SET,
     30   kSeekCurrent = SEEK_CUR,
     31   kSeekEnd = SEEK_END,
     32 };
     33 
     34 class OutputStream {
     35  public:
     36   explicit OutputStream(const std::string& location) : location_(location) {}
     37 
     38   virtual ~OutputStream() {}
     39 
     40   const std::string& GetLocation() const {
     41     return location_;
     42   }
     43 
     44   virtual bool WriteFully(const void* buffer, int64_t byte_count) = 0;
     45 
     46   virtual off_t Seek(off_t offset, Whence whence) = 0;
     47 
     48  private:
     49   const std::string location_;
     50 
     51   DISALLOW_COPY_AND_ASSIGN(OutputStream);
     52 };
     53 
     54 }  // namespace art
     55 
     56 #endif  // ART_COMPILER_OUTPUT_STREAM_H_
     57