CommandLine.h

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#ifndef LONESTAR_COMMANDLINE_H
#define LONESTAR_COMMANDLINE_H

#include "Galois/Runtime/Support.h"
#include <sstream>
#include <unistd.h>
#include <stdio.h>

static bool skipVerify = false;
static long numThreads = 1;

std::vector<const char*> parse_command_line(int argc, const char** argv, const char* proghelp) {
  std::vector<const char*> retval;

  //known options
  //-t threads
  //-noverify
  //-help

  std::ostringstream out;
  for (int i = 0; i < argc; ++i) {
    out << argv[i];
    if (i != argc - 1)
      out << " ";
  }
  GaloisRuntime::reportInfo("CommandLine", out.str().c_str());
  char name[256];
  gethostname(name, 256);
  GaloisRuntime::reportInfo("Hostname", name);

  for (int i = 1; i < argc; ++i) {
    if (std::string("-t").compare(argv[i]) == 0) {
      if (i + 1 >= argc) {
        fputs("Error parsing -t option, missing number\n", stderr);
        abort();
      }
      char* endptr = 0;
      numThreads = strtol(argv[i+1], &endptr, 10);
      if (endptr == argv[i+1]) {
        fputs("Error parsing -t option, number not recognized\n", stderr);
        abort();
      }
      numThreads = Galois::setMaxThreads(numThreads);
      ++i; //eat arg value
    } else if (std::string("-noverify").compare(argv[i]) == 0) {
      skipVerify = true;
    } else if (std::string("-help").compare(argv[i]) == 0) {
      fprintf(stderr, "%s%s%s\n", 
          "[-t numThreads] use numThreads threads (1)\n",
          "[-noverify] skip verification\n",
          proghelp);
      exit(0);
    } else {
      retval.push_back(argv[i]);
    }
  }
  return retval;
}
#endif

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