fs/OutputStream: new infrastructure for writing to files

1 files changed, 68 insertions, 0 deletions

diff --git a/src/fs/output/FileOutputStream.hxx b/src/fs/output/FileOutputStream.hxx
new file mode 100644
index 000000000..68174ec83
--- /dev/null
+++ b/src/fs/output/FileOutputStream.hxx
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2003-2014 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 <assert.h>
+
+#ifdef WIN32
+#include <windows.h>
+#endif
+
+class Path;
+
+class FileOutputStream final : public OutputStream {
+	AllocatedPath path;
+
+#ifdef WIN32
+	HANDLE handle;
+#else
+	int fd;
+#endif
+
+public:
+	FileOutputStream(Path _path, Error &error);
+
+	~FileOutputStream() {
+		if (IsDefined())
+			Cancel();
+	}
+
+
+	bool IsDefined() const {
+#ifdef WIN32
+		return handle != INVALID_HANDLE_VALUE;
+#else
+		return fd >= 0;
+#endif
+	}
+
+	bool Commit(Error &error);
+	void Cancel();
+
+	/* virtual methods from class OutputStream */
+	bool Write(const void *data, size_t size, Error &error) override;
+};
+
+#endif