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/*
* Copyright (C) 2014 Canonical, Ltd.
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License version 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 warranties of MERCHANTABILITY,
* SATISFACTORY QUALITY, 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "proc_info.h"
// Qt
#include <QFile>
#include <QRegularExpression>
namespace qtmir
{
ProcInfo::~ProcInfo() {
}
std::unique_ptr<ProcInfo::CommandLine> ProcInfo::commandLine(quint64 pid) {
QFile cmdline(QString("/proc/%1/cmdline").arg(pid));
if (!cmdline.open(QIODevice::ReadOnly | QIODevice::Text)) {
return nullptr;
}
return std::unique_ptr<CommandLine>(new CommandLine{ cmdline.readLine().replace('\0', ' ') });
}
QStringList ProcInfo::CommandLine::asStringList() const {
return QString(m_command.data()).split(' ');
}
bool ProcInfo::CommandLine::startsWith(char const* prefix) const {
return m_command.startsWith(prefix);
}
bool ProcInfo::CommandLine::contains(char const* prefix) const {
return m_command.contains(prefix);
}
QString ProcInfo::CommandLine::getParameter(const char* name) const {
QString pattern = QRegularExpression::escape(name) + "(\\S+)";
QRegularExpression regExp(pattern);
QRegularExpressionMatch regExpMatch = regExp.match(m_command);
if (!regExpMatch.hasMatch()) {
return QString();
}
return QString(regExpMatch.captured(1));
}
} // namespace qtmir
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