/**

    In these arrays, I should replace NULL with a pointer to a string in the struct which should hold the result of confuse processing an option. This is partially because confuse will not free the values it parses.

    the server sections in the distrencommon.conf describe different servers that the client may connect to

   */

  cfg_opt_t server_opts[] =

    {

      CFG_STR("username", NULL, CFGF_NONE),

      CFG_STR("hostname", NULL, CFGF_NONE),

      CFG_STR("method", "ssh", CFGF_NONE),

      CFG_STR_LIST("types", NULL, CFGF_NONE),

      CFG_END()

    };

  cfg_opt_t opts[] =

    {

      CFG_SEC("common",

	      common_opts,

	      CFGF_NONE),

      CFG_SEC("server",

	      server_opts,

	      CFGF_MULTI | CFGF_TITLE),

      CFG_SEC(myname,

	      myopts,

      CFG_FUNC("include",

	       &cfg_include),

      CFG_END()

    };

  (*allopts)->data->cfg = cfg_init(opts, 0);

  switch(cfg_parse((*allopts)->data->cfg, configfile))

    {

    default:

      fprintf(stderr, "cfg_parse returned an unknown error code\n");

    case CFG_FILE_ERROR:

      cfg_error((*allopts)->data->cfg, "Couldn't open file ``%s''\n", configfile);

      /* no break; on purpose */

    case CFG_PARSE_ERROR:

      free((*allopts)->data);

      free(*allopts);

      free(configfile);

      return 1;

    case CFG_SUCCESS:

      break;

    }

  free(configfile);

  *mycfg = cfg_getsec((*allopts)->data->cfg, myname);

  /*

   * libdistrencommon's config options:

   */

  /* remoteio -- iterate through servers */

  i = remoteio_config((*allopts)->data->cfg, (*allopts)->remoteio);

  if(i)

    {

      fprintf(stderr, "cleanup\n");

   @arg head pointer to the head of the linkedlist of distrenjobs

 */

void distrenjob_remove(struct general_info *geninfo, struct distrenjob *bj)

{

  struct distrenjob *previous_distrenjob;

  for(previous_distrenjob = &geninfo->head;

      previous_distrenjob

	&& previous_distrenjob->next != bj; /*< stop on the distrenjob that comes before bj */

      previous_distrenjob = previous_distrenjob->next)

    ;

  /*

    This removes references to bj from the linked list. I.E., we now skip bj when iterating through the list

  */

  previous_distrenjob->next = bj->next;

  geninfo->jobs_in_queue --;

}

/* Grabs config info from confs */

int distrend_do_config(int argc, char *argv[], struct distrend_config **config)

{

  cfg_opt_t myopts_listen[] =

    {

      CFG_SIMPLE_STR("type", NULL),

      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;

  /*

   * 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;

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

  return 0;

}

int distrend_config_free(struct distrend_config *config)

{

  options_free(config->options);

  free(config);

  return 0;

}

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

// writes the general_info.xml file which is a copy of the general_info structure

// except that it doesn't hold free_clients and rendering_clients

void update_general_info(struct general_info *geninfo)

{

  xmlTextWriterPtr writer;

  char *tmp;

  writer = xmlNewTextWriterFilename("general_info.xml", 0);

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

  int height;

  int start_frame;

  int end_frame;

  size_t read_buf;

  xmlinit();

  test = 0;

  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;

      }

    }

  cont = 1;

  if(start_data(&general_info, config->datadir))

    {

      fprintf(stderr, "%s:%d: start_data() failed\n", __FILE__, __LINE__);

      return 1;

    }

  // pre-loaded jobs for testing

  prepare_distrenjob(&general_info, 1, "awesome", "LordOfWar", "onlylordofwar@gmail.com", 8, 1, 100, 640, 480);

  prepare_distrenjob(&general_info, 1, "hamburger", "Ohnobinki", "ohnobinki@ohnopublishing.net", 3, 1, 50, 1280, 720);

  while(test == 1)

  {

    fprintf(stderr, "Welcome to DistRen Alpha Interactive Test Mode\n\n");

    fprintf(stderr, "\t1 \tPrint all frames in a job\n");

    fprintf(stderr, "\t2 \tExamine certain job\n");

    fprintf(stderr, "\t3 \tGet a frame to render\n");

    fprintf(stderr, "\t4 \tAdd a job\n");

    fprintf(stderr, "\t5 \tDelete a job\n");

    fprintf(stderr, "\t6 \tPrint jobnums in queue\n");

    fprintf(stderr, "\t7 \tPrint general info\n");

    fprintf(stderr, "\t8 \tQuit\n");

    scanf("%d", &command);