Files
sdbus-cpp/src/Types.cpp
Jeremy Prater eb58d2fa52 - Rewind Message prior to access for peekValueType.
Fixes #8

(cherry picked from commit f8bed4b0faa2c0a2bc7037f3a55105060d56dbdb)
2018-12-24 15:30:55 +01:00

67 lines
1.6 KiB
C++

/**
* (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
*
* @file Types.cpp
*
* Created on: Nov 30, 2016
* Project: sdbus-c++
* Description: High-level D-Bus IPC C++ library based on sd-bus
*
* This file is part of sdbus-c++.
*
* sdbus-c++ is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 of the License, or
* (at your option) any later version.
*
* sdbus-c++ 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
*/
#include <sdbus-c++/Types.h>
#include <sdbus-c++/Error.h>
#include "MessageUtils.h"
#include <systemd/sd-bus.h>
#include <cassert>
namespace sdbus { /*namespace internal {*/
Variant::Variant()
: msg_(createPlainMessage())
{
}
void Variant::serializeTo(Message& msg) const
{
SDBUS_THROW_ERROR_IF(isEmpty(), "Empty variant is not allowed", EINVAL);
msg_.rewind(true);
msg_.copyTo(msg, true);
}
void Variant::deserializeFrom(Message& msg)
{
msg.copyTo(msg_, false);
msg_.seal();
}
std::string Variant::peekValueType() const
{
msg_.rewind(false);
std::string type;
std::string contents;
msg_.peekType(type, contents);
return contents;
}
bool Variant::isEmpty() const
{
return msg_.isEmpty();
}
}