2 files changed, 106 insertions, 0 deletions
diff --git a/src/lib/dbus/UDisks2.cxx b/src/lib/dbus/UDisks2.cxx
new file mode 100644
index 000000000..1cb231951
--- /dev/null
+++ b/src/lib/dbus/UDisks2.cxx
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2003-2018 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 "UDisks2.hxx"
+#include "ReadIter.hxx"
+#include "util/StringAPI.hxx"
+#include "Compiler.h"
+
+#include <functional>
+
+namespace UDisks2 {
+
+template<typename I>
+gcc_pure
+static const char *
+CheckString(I &&i) noexcept
+{
+	if (i.GetArgType() != DBUS_TYPE_STRING)
+		return nullptr;
+
+	return i.GetString();
+}
+
+static void
+ParseDriveDictEntry(Object &o, const char *name,
+		    ODBus::ReadMessageIter &&value_i) noexcept
+{
+	if (StringIsEqual(name, "Id")) {
+		const char *value = CheckString(value_i);
+		if (value != nullptr && o.drive_id.empty())
+			o.drive_id = value;
+	}
+}
+
+static void
+ParseBlockDictEntry(Object &o, const char *name,
+		    ODBus::ReadMessageIter &&value_i) noexcept
+{
+	if (StringIsEqual(name, "Id")) {
+		const char *value = CheckString(value_i);
+		if (value != nullptr && o.block_id.empty())
+			o.block_id = value;
+	}
+}
+
+static void
+ParseInterface(Object &o, const char *interface,
+	       ODBus::ReadMessageIter &&i) noexcept
+{
+	using namespace std::placeholders;
+	if (StringIsEqual(interface, "org.freedesktop.UDisks2.Drive")) {
+		i.ForEachProperty(std::bind(ParseDriveDictEntry,
+					    std::ref(o), _1, _2));
+	} else if (StringIsEqual(interface, "org.freedesktop.UDisks2.Block")) {
+		i.ForEachProperty(std::bind(ParseBlockDictEntry,
+					    std::ref(o), _1, _2));
+	} else if (StringIsEqual(interface, "org.freedesktop.UDisks2.Filesystem")) {
+		o.is_filesystem = true;
+	}
+}
+
+static void
+ParseInterfaceDictEntry(Object &o, ODBus::ReadMessageIter &&i) noexcept
+{
+	if (i.GetArgType() != DBUS_TYPE_STRING)
+		return;
+
+	const char *interface = i.GetString();
+	i.Next();
+
+	if (i.GetArgType() != DBUS_TYPE_ARRAY)
+		return;
+
+	ParseInterface(o, interface, i.Recurse());
+}
+
+void
+ParseObject(Object &o, ODBus::ReadMessageIter &&i) noexcept
+{
+	i.ForEach(DBUS_TYPE_DICT_ENTRY, [&o](auto &&j){
+			ParseInterfaceDictEntry(o, j.Recurse());
+		});
+}
+
+} // namespace UDisks2
diff --git a/src/lib/dbus/UDisks2.hxx b/src/lib/dbus/UDisks2.hxx
index 12b9449a3..23d7fe599 100644
--- a/src/lib/dbus/UDisks2.hxx
+++ b/src/lib/dbus/UDisks2.hxx
@@ -25,6 +25,8 @@
 #define UDISKS2_PATH "/org/freedesktop/UDisks2"
 #define UDISKS2_INTERFACE "org.freedesktop.UDisks2"
 
+namespace ODBus { class ReadMessageIter; }
+
 namespace UDisks2 {
 
 struct Object {
@@ -52,6 +54,9 @@ struct Object {
 	}
 };
 
+void
+ParseObject(Object &o, ODBus::ReadMessageIter &&i) noexcept;
+
 } // namespace UDisks2
 
 #endif