CFG_SIMPLE_STR("path", NULL),

      CFG_SIMPLE_INT("port", NULL),

      CFG_END()

    };

  cfg_opt_t myopts[] =

    {

      CFG_SEC("listen",  /* this must be imported into struct listens (which must still be declared) */

          myopts_listen,

          CFGF_MULTI),

      CFG_SIMPLE_STR("datadir", NULL),

      CFG_END()

    };

  struct distrenjob *distrenjob;

  int tmp;

  xmlinit();

  /*

   * test xml2distrenjob()

   */

  tmp = xml2distrenjob(&distrenjob, "distrenjob.xml.example");

  if(tmp)

    fprintf(stderr, "xml2distrenjob() returned %d. Try to cd to distren/doc if you want to test out the xml2distrenjob() function. (This will only fix this error if the error is due to an inability of the xml library to access distrenjob.xml.example)\n\n", tmp);

  else

    fprintf(stderr, "using email ``%s'' for user ``%s'' -- reading in XML files and pulling data from them using libxml2+XPath works!!!\n", distrenjob->email, distrenjob->submitter);

  fprintf(stderr, "%s:%d running config\n", __FILE__, __LINE__);

  *config = malloc(sizeof(struct distrend_config));

  myopts[1].simple_value = &(*config)->datadir;

  options_init(argc, argv, &(*config)->mycfg, myopts, "server", &(*config)->options);

  fprintf(stderr, "using %s as datadir\n", (*config)->datadir);

  xmlcleanup();

  return 0;

}

int distrend_config_free(struct distrend_config *config)

{

  options_free(config->options);

  free(config);

  return 0;

}

/* ************************** XML Functions ************************* */

// returns 1 on successful completion of xml file

int makeSlaveDataXML(struct distrenjob *job)

{

  xmlTextWriterPtr writer;

  char *tmp; // temporarily holds strings to be given to the xml writer

  _distren_asprintf(&tmp, "stor/job%d/job_info.xml", job->jobnum);

  // create xml document at the location tmp with no compression

  writer = xmlNewTextWriterFilename(tmp, 0);

  xmlTextWriterStartDocument(writer, NULL, "UTF-8", NULL);

  // write resolution element and add its attributes

  xmlTextWriterStartElement(writer, (xmlChar*)"distrenjob");

  xmlTextWriterWriteAttribute(writer, (xmlChar*)"name", (xmlChar*)job->name);

  xmlTextWriterWriteAttribute(writer, (xmlChar*)"submitter", (xmlChar*)job->submitter);

  _distren_asprintf(&tmp, "%d", job->priority);

  xmlTextWriterWriteAttribute(writer, (xmlChar*)"priority", (xmlChar*)tmp);

  // write resolution element and add its attributes

  xmlTextWriterStartElement(writer, (xmlChar*)"resolution");

  _distren_asprintf(&tmp, "%d", job->width);

  xmlTextWriterWriteAttribute(writer, (xmlChar*)"width", (xmlChar*)tmp);

  _distren_asprintf(&tmp, "%d", job->height);

  xmlTextWriterWriteAttribute(writer, (xmlChar*)"height", (xmlChar*)tmp);

  xmlTextWriterEndElement(writer);

  // end document

  xmlTextWriterEndDocument(writer);

  // free writer and save xml file to disk

  xmlFreeTextWriter(writer);

  return 1;

}

// returns 1 if successful

// updates job_list.xml which lists all the jobs in the queue

int updateJobListXML(struct distrenjob *head)

{

  struct distrenjob *job;

  xmlTextWriterPtr writer;

  char *tmp;

  char *tmp2;

  int counter;

  _distren_asprintf(&tmp, "job_list.xml");

  writer = xmlNewTextWriterFilename(tmp, 0);

  // create root element job_list

  xmlTextWriterStartElement(writer, (xmlChar*)"job_list");

  _distren_asprintf(&tmp, "%d", general_info.jobs_in_queue);

  xmlTextWriterWriteAttribute(writer, (xmlChar*)"amount", (xmlChar*)tmp);

  counter = 0;

  for(job = head->next; !job; job = job->next)

    {

      _distren_asprintf(&tmp, "jobnum%d", counter);

      _distren_asprintf(&tmp2, "%d", job->jobnum);

      xmlTextWriterWriteElement(writer, (xmlChar*)tmp, (xmlChar*)tmp2);

      counter++;

    }

  // close elements and end document

  xmlTextWriterEndDocument(writer);

  // free writer and save xml file to disk

  xmlFreeTextWriter(writer);

  return 1;

}

// returns 1 if completed successfully, 0 if not

// this reads a list of jobs in the queue before DistRen was shut down

// and then adds the jobs to the queue, as if it were never shut down

int createQueueFromXML(struct distrenjob *head)

{

  xmlDocPtr doc;  // holds xml document in memory

  xmlNodePtr cur; // points to the current xml element node

  // load xml document

  doc = xmlParseFile("job_list.xml");

  if(doc == NULL)

    {

      fprintf(stderr, "createQueueFromXML: document not found\n");

      return 0;

    }

  // have cur point to the root element of the xml document pointed to by doc

  cur = xmlDocGetRootElement(doc);

  if(cur == NULL)

    {

      fprintf(stderr, "createQueueFromXML: document empty\n");

      return 0;

    }

  if(xmlStrcmp(cur->name, (const xmlChar*)"job_list"))

    {

      fprintf(stderr, "createQueueFromXML: incorrect root element (%s)", (char*)cur->name);

    }

  // moves into the children elements of job_list

  cur = cur->xmlChildrenNode;

  // scans the list of all jobs that were in queue before DistRen shutdown

  while(cur != NULL)

    {

      // add job from job number @TODO create function with parameters (struct distrenjob *head, int job_number)

      // LordOfWar calls dibs on above todo

      cur = cur->next; // go to next child element of job_list element

    }

  xmlFreeDoc(doc);

  return 1;

}

/* ************************** Test Functions ************************* */

void printFrameInfo(struct frameset *frame)

{

  char *status;

  status = NULL;

  switch(frame->status)

  {

    case FRAMESETSTATUS_UNASSIGNED:

      _distren_asprintf(&status, "%s", "unassigned");

      break;

    case FRAMESETSTATUS_ASSIGNED:

      _distren_asprintf(&status, "%s", "assigned");

      break;

    case FRAMESETSTATUS_DONE:

      _distren_asprintf(&status, "%s", "completed");

      break;

    case FRAMESETSTATUS_CANCELED:

      _distren_asprintf(&status, "%s", "canceled");

  }

  printf("frame #: %d --> %s", frame->num, status);

}

void printJob(struct distrenjob *job)

{

  int counter;

  printf("frame_num: status");

  for(counter = 0; counter < job->total_frames; counter++)

    {

      printFrameInfo(&job->frameset[counter]);

    }

}

void printJobInfo(struct distrenjob *job)

{

  printf("type: %d", job->type);

  printf("name: %s", job->email);

  printf("submitter: %s", job->submitter);

  printf("e-mail: %s", job->email);

  printf("priority, %d", job->priority);

  printf("completed: %d", job->completed_frames);

  printf("assigned: %d", job->assigned_frames);

  printf("total: %d", job->total_frames);

  printf("watchdog: %d", job->watchdog_forgiveness);

  printf("hibernate: %d", job->hibernate);

  printf("prev_frame: %d", job->prev_frame_index);

}

void printAllJobnums(struct distrenjob *head)

{

  struct distrenjob *current_job;

  int total_jobs;

  printf("job numbers in the order they will be processed:");

  total_jobs = 0;

  for(current_job = head; !current_job; current_job = current_job->next)

    {

      printf("%d", current_job->jobnum);

      total_jobs++;

    }

  printf("%d jobs in queue", total_jobs);

}

/* ************************** Main ************************* */

int main(int argc, char *argv[])

{

  /* Argument-parser */

  int counter = 0;

  int test = 0; // Have some fun if-ness that does fun stuff when this is 1

  for(counter=0; counter<argc; counter++){

         if(strcmp(argv[counter], "-h") == 0) {

           fprintf(stderr, "Usage: distrend [option] \nStarts the distrend server\n\t-h\tshow this help\n\t-t\tlaunches queue testing interface \n");

           return 2;

          }

          else if(strcmp(argv[counter], "-t") == 0) {

            fprintf(stderr, "Entering into test mode...\n\n");

            test=1;

          }

  }

  struct distrenjob head;

  head.priority = 0; // make head have the highest priority

  int cont;