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/*
* Copyright © Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 or 3,
* as published by the Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "mir_test_framework/temporary_environment_value.h"
#include <cstdlib>
namespace mtf = mir_test_framework;
mtf::TemporaryEnvironmentValue::TemporaryEnvironmentValue(char const* name, char const* value) :
name{name},
has_old_value{getenv(name) != nullptr},
old_value{has_old_value ? getenv(name) : ""}
{
if (value)
setenv(name, value, overwrite);
else
unsetenv(name);
}
mtf::TemporaryEnvironmentValue::~TemporaryEnvironmentValue()
{
if (has_old_value)
setenv(name.c_str(), old_value.c_str(), overwrite);
else
unsetenv(name.c_str());
}
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