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authorMax Kellermann <max@duempel.org>2014-07-30 19:10:28 +0200
committerMax Kellermann <max@duempel.org>2014-07-30 22:12:02 +0200
commit0d0ccacdf3e154b1cc27a0840fce80ac13f9641c (patch)
tree75d25911d85f6c32e9206c2e713cc864728aad6a /src/fs/output/FileOutputStream.hxx
parentc8858f85d8366e36c588b1dcc7ef7eff40832dd0 (diff)
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fs/OutputStream: new infrastructure for writing to files
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-rw-r--r--src/fs/output/FileOutputStream.hxx68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/fs/output/FileOutputStream.hxx b/src/fs/output/FileOutputStream.hxx
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+/*
+ * 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