base/memory/scoped_handle.h

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef BASE_MEMORY_SCOPED_HANDLE_H_
   6 #define BASE_MEMORY_SCOPED_HANDLE_H_
   7
   8 #include <stdio.h>
   9
  10 #include "base/basictypes.h"
  11
  12 class ScopedStdioHandle {
  13  public:
  14   ScopedStdioHandle()
  15       : handle_(NULL) { }
  16
  17   explicit ScopedStdioHandle(FILE* handle)
  18       : handle_(handle) { }
  19
  20   ~ScopedStdioHandle() {
  21     Close();
  22   }
  23
  24   void Close() {
  25     if (handle_) {
  26       fclose(handle_);
  27       handle_ = NULL;
  28     }
  29   }
  30
  31   FILE* get() const { return handle_; }
  32
  33   FILE* Take() {
  34     FILE* temp = handle_;
  35     handle_ = NULL;
  36     return temp;
  37   }
  38
  39   void Set(FILE* newhandle) {
  40     Close();
  41     handle_ = newhandle;
  42   }
  43
  44  private:
  45   FILE* handle_;
  46
  47   DISALLOW_COPY_AND_ASSIGN(ScopedStdioHandle);
  48 };
  49
  50 #endif  // BASE_MEMORY_SCOPED_HANDLE_H_