Repo created

TMessagesProj/jni/voip/webrtc/base/files/scoped_temp_dir.h

@@ -0,0 +1,72 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_FILES_SCOPED_TEMP_DIR_H_
+#define BASE_FILES_SCOPED_TEMP_DIR_H_
+
+// An object representing a temporary / scratch directory that should be
+// cleaned up (recursively) when this object goes out of scope.  Since deletion
+// occurs during the destructor, no further error handling is possible if the
+// directory fails to be deleted.  As a result, deletion is not guaranteed by
+// this class.  (However note that, whenever possible, by default
+// CreateUniqueTempDir creates the directory in a location that is
+// automatically cleaned up on reboot, or at other appropriate times.)
+//
+// Multiple calls to the methods which establish a temporary directory
+// (CreateUniqueTempDir, CreateUniqueTempDirUnderPath, and Set) must have
+// intervening calls to Delete or Take, or the calls will fail.
+
+#include "base/base_export.h"
+#include "base/compiler_specific.h"
+#include "base/files/file_path.h"
+
+namespace base {
+
+class BASE_EXPORT ScopedTempDir {
+ public:
+  // No directory is owned/created initially.
+  ScopedTempDir();
+
+  ScopedTempDir(ScopedTempDir&&) noexcept;
+  ScopedTempDir& operator=(ScopedTempDir&&);
+
+  // Recursively delete path.
+  ~ScopedTempDir();
+
+  // Creates a unique directory in TempPath, and takes ownership of it.
+  // See file_util::CreateNewTemporaryDirectory.
+  bool CreateUniqueTempDir() WARN_UNUSED_RESULT;
+
+  // Creates a unique directory under a given path, and takes ownership of it.
+  bool CreateUniqueTempDirUnderPath(const FilePath& path) WARN_UNUSED_RESULT;
+
+  // Takes ownership of directory at |path|, creating it if necessary.
+  // Don't call multiple times unless Take() has been called first.
+  bool Set(const FilePath& path) WARN_UNUSED_RESULT;
+
+  // Deletes the temporary directory wrapped by this object.
+  bool Delete() WARN_UNUSED_RESULT;
+
+  // Caller takes ownership of the temporary directory so it won't be destroyed
+  // when this object goes out of scope.
+  FilePath Take();
+
+  // Returns the path to the created directory. Call one of the
+  // CreateUniqueTempDir* methods before getting the path.
+  const FilePath& GetPath() const;
+
+  // Returns true if path_ is non-empty and exists.
+  bool IsValid() const;
+
+  // Returns the prefix used for temp directory names generated by
+  // ScopedTempDirs.
+  static const FilePath::CharType* GetTempDirPrefix();
+
+ private:
+  FilePath path_;
+};
+
+}  // namespace base
+
+#endif  // BASE_FILES_SCOPED_TEMP_DIR_H_