System.cpp

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//
// Class System
//   The class for OPAL SYSTEM command on a single core.
//
// Copyright (c) 2000 - 2021, Paul Scherrer Institut, Villigen PSI, Switzerland
// All rights reserved
//
// This file is part of OPAL.
//
// OPAL 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 3 of the License, or
// (at your option) any later version.
//
// You should have received a copy of the GNU General Public License
// along with OPAL. If not, see <https://www.gnu.org/licenses/>.
//
#include "BasicActions/System.h"
#include "Ippl.h"
 
#include "Attributes/Attributes.h"
#include "Utility/IpplInfo.h"
 
#include <cstdlib>
 
System::System()
    : Action(1, "SYSTEM",
             "The \"SYSTEM\" statement sends a command string to the "
             "operating system.") {
    itsAttr[0] = Attributes::makeString("CMD", "A system command to be executed");
 
    registerOwnership(AttributeHandler::COMMAND);
}
 
System::System(const std::string& name, System* parent) : Action(name, parent) {}
 
System::~System() {}
 
System* System::clone(const std::string& name) { return new System(name, this); }
 
void System::execute() {
    if (ippl::Comm->rank() == 0) {
        std::string command = Attributes::getString(itsAttr[0]);
 
        int res = system(command.c_str());
        if (res != 0) *ippl::Error << "SYSTEM call failed" << endl;
    }
}
 
void System::parse(Statement& statement) { parseShortcut(statement); }