1 files changed, 98 insertions, 0 deletions
diff --git a/src/fs/io/FileReader.cxx b/src/fs/io/FileReader.cxx
new file mode 100644
index 000000000..d63cd8ab0
--- /dev/null
+++ b/src/fs/io/FileReader.cxx
@@ -0,0 +1,98 @@
+/*
+ * 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.
+ */
+
+#include "config.h"
+#include "FileReader.hxx"
+#include "system/fd_util.h"
+#include "util/Error.hxx"
+
+#ifdef WIN32
+
+FileReader::FileReader(Path _path, Error &error)
+	:path(_path),
+	 handle(CreateFile(path.c_str(), GENERIC_READ, FILE_SHARE_READ,
+			   nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
+			   nullptr))
+{
+	if (handle == INVALID_HANDLE_VALUE)
+		error.FormatLastError("Failed to open %s", path.c_str());
+}
+
+size_t
+FileReader::Read(void *data, size_t size, Error &error)
+{
+	assert(IsDefined());
+
+	DWORD nbytes;
+	if (!ReadFile(handle, data, size, &nbytes, nullptr)) {
+		error.FormatLastError("Failed to read from %s", path.c_str());
+		nbytes = 0;
+	}
+
+	return nbytes;
+}
+
+void
+FileReader::Close()
+{
+	assert(IsDefined());
+
+	CloseHandle(handle);
+}
+
+#else
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+FileReader::FileReader(Path _path, Error &error)
+	:path(_path),
+	 fd(open_cloexec(path.c_str(),
+			 O_RDONLY,
+			 0))
+{
+	if (fd < 0)
+		error.FormatErrno("Failed to open %s", path.c_str());
+}
+
+size_t
+FileReader::Read(void *data, size_t size, Error &error)
+{
+	assert(IsDefined());
+
+	ssize_t nbytes = read(fd, data, size);
+	if (nbytes < 0) {
+		error.FormatErrno("Failed to read from %s", path.c_str());
+		nbytes = 0;
+	}
+
+	return nbytes;
+}
+
+void
+FileReader::Close()
+{
+	assert(IsDefined());
+
+	close(fd);
+	fd = -1;
+}
+
+#endif