poco/Foundation/include/Poco/TemporaryFile.h

//
// TemporaryFile.h
//
// $Id: //poco/1.4/Foundation/include/Poco/TemporaryFile.h#2 $
//
// Library: Foundation
// Package: Filesystem
// Module:  TemporaryFile
//
// Definition of the TemporaryFile class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#ifndef Foundation_TemporaryFile_INCLUDED
#define Foundation_TemporaryFile_INCLUDED


#include "Poco/Foundation.h"
#include "Poco/File.h"


namespace Poco {


class Foundation_API TemporaryFile: public File
	/// The TemporaryFile class helps with the handling
	/// of temporary files.
	/// A unique name for the temporary file is
	/// automatically chosen and the file is placed
	/// in the directory reserved for temporary
	/// files (see Path::temp()).
	/// Obtain the path by calling the path() method
	/// (inherited from File).
	///
	/// The TemporaryFile class does not actually
	/// create the file - this is up to the application.
	/// The class does, however, delete the temporary
	/// file - either in the destructor, or immediately
	/// before the application terminates.
{
public:
	TemporaryFile();
		/// Creates the TemporaryFile.

    TemporaryFile(const std::string& tempDir);
		/// Creates the TemporaryFile using the given directory.

	~TemporaryFile();
		/// Destroys the TemporaryFile and
		/// deletes the corresponding file on
		/// disk unless keep() or keepUntilExit()
		/// has been called.

	void keep();
		/// Disables automatic deletion of the file in
		/// the destructor.

	void keepUntilExit();
		/// Disables automatic deletion of the file in
		/// the destructor, but registers the file
		/// for deletion at process termination.

	static void registerForDeletion(const std::string& path);
		/// Registers the given file for deletion
		/// at process termination.

	static std::string tempName(const std::string& tempDir = "");
		/// Returns a unique path name for a temporary
		/// file in the system's scratch directory (see Path::temp())
		/// if tempDir is empty or in the directory specified in tempDir
		/// otherwise.

private:
	bool _keep;
};


} // namespace Poco


#endif // Foundation_TemporaryFile_INCLUDED