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      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_FILES_SCOPED_TEMP_DIR_H_
      6 #define BASE_FILES_SCOPED_TEMP_DIR_H_
      7 
      8 // An object representing a temporary / scratch directory that should be cleaned
      9 // up (recursively) when this object goes out of scope.  Note that since
     10 // deletion occurs during the destructor, no further error handling is possible
     11 // if the directory fails to be deleted.  As a result, deletion is not
     12 // guaranteed by this class.
     13 //
     14 // Multiple calls to the methods which establish a temporary directory
     15 // (CreateUniqueTempDir, CreateUniqueTempDirUnderPath, and Set) must have
     16 // intervening calls to Delete or Take, or the calls will fail.
     17 
     18 #include "base/base_export.h"
     19 #include "base/files/file_path.h"
     20 #include "base/macros.h"
     21 
     22 namespace base {
     23 
     24 class BASE_EXPORT ScopedTempDir {
     25  public:
     26   // No directory is owned/created initially.
     27   ScopedTempDir();
     28 
     29   // Recursively delete path.
     30   ~ScopedTempDir();
     31 
     32   // Creates a unique directory in TempPath, and takes ownership of it.
     33   // See file_util::CreateNewTemporaryDirectory.
     34   bool CreateUniqueTempDir() WARN_UNUSED_RESULT;
     35 
     36   // Creates a unique directory under a given path, and takes ownership of it.
     37   bool CreateUniqueTempDirUnderPath(const FilePath& path) WARN_UNUSED_RESULT;
     38 
     39   // Takes ownership of directory at |path|, creating it if necessary.
     40   // Don't call multiple times unless Take() has been called first.
     41   bool Set(const FilePath& path) WARN_UNUSED_RESULT;
     42 
     43   // Deletes the temporary directory wrapped by this object.
     44   bool Delete() WARN_UNUSED_RESULT;
     45 
     46   // Caller takes ownership of the temporary directory so it won't be destroyed
     47   // when this object goes out of scope.
     48   FilePath Take();
     49 
     50   // Returns the path to the created directory. Call one of the
     51   // CreateUniqueTempDir* methods before getting the path.
     52   const FilePath& GetPath() const;
     53 
     54   // Returns true if path_ is non-empty and exists.
     55   bool IsValid() const;
     56 
     57  private:
     58   FilePath path_;
     59 
     60   DISALLOW_COPY_AND_ASSIGN(ScopedTempDir);
     61 };
     62 
     63 }  // namespace base
     64 
     65 #endif  // BASE_FILES_SCOPED_TEMP_DIR_H_
     66