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/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_FILE_OUTPUT_STREAM_HXX
#define MPD_FILE_OUTPUT_STREAM_HXX
#include "check.h"
#include "OutputStream.hxx"
#include "fs/AllocatedPath.hxx"
#include "Compiler.h"
#ifndef WIN32
#include "system/FileDescriptor.hxx"
#endif
#include <assert.h>
#ifdef WIN32
#include <windows.h>
#endif
class Path;
class FileOutputStream final : public OutputStream {
AllocatedPath path;
#ifdef WIN32
HANDLE handle;
#else
FileDescriptor fd;
#endif
#ifdef HAVE_LINKAT
/**
* Was O_TMPFILE used? If yes, then linkat() must be used to
* create a link to this file.
*/
bool is_tmpfile;
#endif
public:
FileOutputStream(Path _path, Error &error);
~FileOutputStream() {
if (IsDefined())
Cancel();
}
static FileOutputStream *Create(Path path, Error &error);
bool IsDefined() const {
#ifdef WIN32
return handle != INVALID_HANDLE_VALUE;
#else
return fd.IsDefined();
#endif
}
bool Commit(Error &error);
void Cancel();
/* virtual methods from class OutputStream */
bool Write(const void *data, size_t size, Error &error) override;
};
#endif
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