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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 SCOPED_READDIR_H
     18 #define SCOPED_READDIR_H
     19 
     20 #include <dirent.h>
     21 
     22 #include "private/bionic_macros.h"
     23 
     24 class ScopedReaddir {
     25  public:
     26   ScopedReaddir(const char* path) : ScopedReaddir(opendir(path)) {
     27   }
     28 
     29   ScopedReaddir(DIR* dir) {
     30     dir_ = dir;
     31   }
     32 
     33   ~ScopedReaddir() {
     34     if (dir_ != NULL) {
     35       closedir(dir_);
     36     }
     37   }
     38 
     39   bool IsBad() {
     40     return dir_ == NULL;
     41   }
     42 
     43   dirent* ReadEntry() {
     44     return readdir(dir_);
     45   }
     46 
     47  private:
     48   DIR* dir_;
     49 
     50   DISALLOW_COPY_AND_ASSIGN(ScopedReaddir);
     51 };
     52 
     53 #endif // SCOPED_READDIR_H
     54