//=========================================================================
//  PARSIMUTIL.CC - part of
//
//                  OMNeT++/OMNEST
//           Discrete System Simulation in C++
//
//  Author: Andras Varga, 2003
//          Dept. of Electrical and Computer Systems Engineering,
//          Monash University, Melbourne, Australia
//
//=========================================================================

/*--------------------------------------------------------------*
  Copyright (C) 2003-2017 Andras Varga
  Copyright (C) 2006-2017 OpenSim Ltd.

  This file is distributed WITHOUT ANY WARRANTY. See the file
  `license' for details on this and other legal matters.
*--------------------------------------------------------------*/

#include <cstring>
#include "omnetpp/cenvir.h"
#include "omnetpp/csimulation.h"
#include "omnetpp/cexception.h"
#include "parsimutil.h"

namespace omnetpp {

void getProcIdFromCommandLineArgs(int& myProcId, int& numPartitions, const char *caller)
{
    int argc = getEnvir()->getArgCount();
    char **argv = getEnvir()->getArgVector();
    int i;
    for (i = 1; i < argc; i++)
        if (argv[i][0] == '-' && argv[i][1] == 'p')
            break;

    if (i == argc)
        throw cRuntimeError("%s: Missing -p<procId>,<numPartitions> switch on the command line", caller);

    char *parg = argv[i];
    myProcId = atoi(parg+2);
    char *s = parg;
    while (*s != ',' && *s)
        s++;
    numPartitions = (*s) ? atoi(s+1) : 0;
    if (myProcId < 0 || numPartitions <= 0 || myProcId >= numPartitions)
        throw cRuntimeError("%s: Invalid switch '%s' -- should have the format -p<procId>,<numPartitions>",
                caller, parg);
}

}  // namespace omnetpp