Home | History | Annotate | Download | only in files
      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 
     21 namespace base {
     22 
     23 class BASE_EXPORT ScopedTempDir {
     24  public:
     25   // No directory is owned/created initially.
     26   ScopedTempDir();
     27 
     28   // Recursively delete path.
     29   ~ScopedTempDir();
     30 
     31   // Creates a unique directory in TempPath, and takes ownership of it.
     32   // See file_util::CreateNewTemporaryDirectory.
     33   bool CreateUniqueTempDir() WARN_UNUSED_RESULT;
     34 
     35   // Creates a unique directory under a given path, and takes ownership of it.
     36   bool CreateUniqueTempDirUnderPath(const FilePath& path) WARN_UNUSED_RESULT;
     37 
     38   // Takes ownership of directory at |path|, creating it if necessary.
     39   // Don't call multiple times unless Take() has been called first.
     40   bool Set(const FilePath& path) WARN_UNUSED_RESULT;
     41 
     42   // Deletes the temporary directory wrapped by this object.
     43   bool Delete() WARN_UNUSED_RESULT;
     44 
     45   // Caller takes ownership of the temporary directory so it won't be destroyed
     46   // when this object goes out of scope.
     47   FilePath Take();
     48 
     49   const FilePath& path() const { return path_; }
     50 
     51   // Returns true if path_ is non-empty and exists.
     52   bool IsValid() const;
     53 
     54  private:
     55   FilePath path_;
     56 
     57   DISALLOW_COPY_AND_ASSIGN(ScopedTempDir);
     58 };
     59 
     60 }  // namespace base
     61 
     62 #endif  // BASE_FILES_SCOPED_TEMP_DIR_H_
     63