#include <sys/utsname.h>
#include <stdlib.h>
#include <strings.h>
#include "templ.h"
#include "Server.h"
#include <unistd.h>

// To wait until killed by the client
extern HPCxx_Sync<int> *mywait;

// Ignore the command line arguments that are being passed on by Globus,
// just print the host on which this server is running. ( Globus sends a
// set of arguments when the new context is created ).

void parseArguments(int argc, char **argv) {
  const int maxLengthOfName = 100;
  char localHostName [maxLengthOfName];

  int error = gethostname(localHostName, maxLengthOfName);
  if (error){
    cout << "Error ... gethostname() failed ... exiting \n";
    exit(EXIT_FAILURE);
  }
  cout << "Gramtest-Server is running on: " << localHostName << endl;
}

// Start running the server
void runServer(int argc, char **argv) {
  // Register all the functions that the server context exports.
  Server::registerAll();
  
  // Wait until killed by the client.
  mywait = new HPCxx_Sync<int>;
  int killMe = *mywait;
  
  cout << "Component has been killed! \n ";
  cout << "Server exiting ... \n";
  cout.flush();
  
  // Wait for a few seconds for the killMe request from the client to
  // return back.
  sleep(5);
}

// The main function.
int main(int argc, char **argv) {
  // Required for any context created using hpcxx_createContext. The newly
  // created context is essentially an "agent" for the "creator" context. 
  hpcxx_initAgent(argc, argv);

  cout << "Server: in main(): hpcxx_initAgent done \n";
  cout.flush(); 

  parseArguments(argc, argv);
  runServer(argc, argv);

  // Call this before exiting. Used for cleanup.  
  hpcxx_exit();
}