102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
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/*
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* Copyright 2003-2018 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "UDisks2.hxx"
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#include "ReadIter.hxx"
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#include "util/StringAPI.hxx"
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#include "Compiler.h"
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#include <functional>
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namespace UDisks2 {
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template<typename I>
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gcc_pure
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static const char *
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CheckString(I &&i) noexcept
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{
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if (i.GetArgType() != DBUS_TYPE_STRING)
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return nullptr;
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return i.GetString();
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}
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static void
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ParseDriveDictEntry(Object &o, const char *name,
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ODBus::ReadMessageIter &&value_i) noexcept
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{
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if (StringIsEqual(name, "Id")) {
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const char *value = CheckString(value_i);
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if (value != nullptr && o.drive_id.empty())
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o.drive_id = value;
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}
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}
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static void
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ParseBlockDictEntry(Object &o, const char *name,
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ODBus::ReadMessageIter &&value_i) noexcept
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{
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if (StringIsEqual(name, "Id")) {
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const char *value = CheckString(value_i);
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if (value != nullptr && o.block_id.empty())
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o.block_id = value;
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}
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}
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static void
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ParseInterface(Object &o, const char *interface,
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ODBus::ReadMessageIter &&i) noexcept
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{
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using namespace std::placeholders;
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if (StringIsEqual(interface, "org.freedesktop.UDisks2.Drive")) {
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i.ForEachProperty(std::bind(ParseDriveDictEntry,
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std::ref(o), _1, _2));
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} else if (StringIsEqual(interface, "org.freedesktop.UDisks2.Block")) {
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i.ForEachProperty(std::bind(ParseBlockDictEntry,
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std::ref(o), _1, _2));
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} else if (StringIsEqual(interface, "org.freedesktop.UDisks2.Filesystem")) {
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o.is_filesystem = true;
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}
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}
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static void
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ParseInterfaceDictEntry(Object &o, ODBus::ReadMessageIter &&i) noexcept
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{
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if (i.GetArgType() != DBUS_TYPE_STRING)
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return;
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const char *interface = i.GetString();
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i.Next();
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if (i.GetArgType() != DBUS_TYPE_ARRAY)
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return;
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ParseInterface(o, interface, i.Recurse());
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}
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void
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ParseObject(Object &o, ODBus::ReadMessageIter &&i) noexcept
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{
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i.ForEach(DBUS_TYPE_DICT_ENTRY, [&o](auto &&j){
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ParseInterfaceDictEntry(o, j.Recurse());
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});
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}
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} // namespace UDisks2
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