int priority;  // 1 is lowest, 10 is highest, 0 means the job is done

  int percent_done;

  int completed_frames; // number of completed frames for stats/etc

  int assigned_frames; // number of assigned frames (that are not yet completed) for stats/etc

  int total_frames; // how many frames are in the animation for stats/etc (unassigned frames)

  int avg_render_time; // average seconds it took to render a frame

  unsigned int time_remaining; // estimated seconds remaining till render is complete (up to 49, 710 days)

							   // we can have the client computer convert it into days, hours, etc if they wish to view it

  struct frameset *frameset;

};

// Frameset Structure

struct frameset {

	int num; // frame number to render

	char slave_name; // user that frame is assigned to

	int status; // status of frame, 0= unassigned, 1= taken, 2= done

	clock_t start_time; // time the frame was started

	int time_to_render; // the total seconds it took to render the frame

}; // Frameset array is generated by status_report_generator function

                         // Using this method to save memory, because if animation starts on a high frame number, it would waste a lot of RAM on empty structures

/*

  internally defined funcs's prototypes

*/

void status_report_generator(struct blendjob **blendjobs_head);

void blendjob_remove(struct blendjob **head, struct blendjob *bj);

struct blendjob *blendjob_get(struct blendjob *head, jobnum_t jobnum);

/* Global Vars, try to cut down on these */

jobnum_t jobnum = 0; // The next job number to create in the queue

int hcfjob; // Highest consecutively finished job

int highest_jobnum; // The job number of the most recently created job, this is used when creating new jobs

/* ********************** Functions ************************* */

void start_data(){

	if(1 == 0){

		// retrieve total_finished_jobs and total_finished_frames from xml file

	}

	else{

		general_info.total_finished_jobs = 0;

		general_info.total_frames_rendered = 0;

	}

}

// **** Finish-Setter: Sets a frame to the "completed" status.

void finish_frame(struct blendjob *blendjob, int frame){

  blendjob->frameset[frame].status = 2;

  blendjob->frameset[frame].time_to_render = (clock() - blendjob[jobnum].frameset[frame].start_time); // Consider changing time-to-render to time-for-frame or something?

  general_info.total_frames_rendered++; // Increase total frames var for stats

}

// **** Queuer: Adds files to the queue

void queue(struct blendjob *blendjob, int type, char *name, char *submitter, char *email, int priority, int mode, int spp, struct frameset *frameset) {

	// Type: 1 = blender, add more types later

	// jobnum is the next available job number

	if(type == 1){

    blendjob->name = name;

    blendjob->submitter = submitter;

    blendjob->email = email;

    blendjob->priority = priority;

    blendjob->frameset = frameset;

  }

  else{

    // Throw error.

  }

jobnum++; // Advance the jobnumber for the next queued job

}

/**

  Status Report Generator:

  -figures out how much of the job is done, where jobnum corresponds to the job number

  -removes finished jobs

  @param blendjobs_head a pointer to a pointer because the head of the blendjobs linked list may need to be changed by blendjob_remove

*/

void status_report_generator(struct blendjob **blendjobs_head)

{

  struct blendjob *blendjob_ptr;

  unsigned short workers_working; /*< used to count the total number of workers working */

  unsigned int numjobs; /*< used to track number of jobs */

  blendjob_ptr = *blendjobs_head;

  workers_working = 0;

  numjobs = 0;

  while(blendjob_ptr)

    {

      if(blendjob_ptr->priority != 0)

	/* If the job is not done, scan it */

	{

	  unsigned int framecounter;  /*< to scan through frames */

	  unsigned long finished_frames; /*< variable that counts the completed frames */

	  unsigned int pending_frames; /*< variable that counts the assigned frames */

	  float percent_frames_finished;  /*< variable that stores the percent done of the blendjob */

	  unsigned int total_time;  /*< total time taken to render all the completed frames for a job */

	  framecounter = 0;

	  finished_frames = 0;

	  pending_frames = 0;

	  percent_frames_finished = 0;

	  total_time = 0;

	  while(framecounter < blendjob_ptr->total_frames)

	    /* scans through frames, based on their status it runs a statement(s) */

	    {

	      if(blendjob_ptr->frameset[framecounter].status == 2)

		/* If the frame is done */

		{

		  finished_frames ++;

		  total_time += blendjob_ptr->frameset[framecounter].time_to_render;

		}

	      if(blendjob_ptr->frameset[framecounter].status == 1)

		/* If the frame is assigned */

		{

		  pending_frames ++;

		  workers_working ++;

		}

	      framecounter ++;

	    } /* while(framecounter < blendjob_ptr->total_frames) */

	  // find the percent of completed frames

	  percent_frames_finished = (finished_frames / blendjob_ptr->total_frames) * 100; /*< @LordofWar: extraneous parentheses! */

	  /* updates values in the blendjob struct */

	  blendjob_ptr->completed_frames = finished_frames;

	  blendjob_ptr->assigned_frames = pending_frames;

	  blendjob_ptr->percent_done = percent_frames_finished;

	  blendjob_ptr->avg_render_time = (total_time / finished_frames); /*< extraneous parentheses! */

	  blendjob_ptr->time_remaining = (blendjob_ptr->avg_render_time * (blendjob_ptr->total_frames - finished_frames)); /*< extraneous parentheses! */

	  if(finished_frames == blendjob_ptr->total_frames)

	    /* If all frames are complete */

	    {

	      blendjob_ptr->priority = 0; /*< set priority to zero to indicate job is complete */

	      blendjob_remove(blendjobs_head, blendjob_ptr); /*< remove this job from the linkedlist */

	      general_info.total_finished_jobs++; /*< add one to the total finished jobs */

	    }

	  else if (finished_frames > blendjob_ptr->total_frames)

	    /* just in case ;-) */

	    {

	      fprintf(stderr, "%s:%d: finished_frames (%lu) > blendjob_ptr->total_frames (%d)",

		      __FILE__, __LINE__,

		      finished_frames,

		      blendjob_ptr->total_frames);

	      abort();

	    }

	}

      general_info.rendering_clients = workers_working; /*< should this be a +=? */

      blendjob_ptr = blendjob_ptr->next; /*< This is the essence of linked lists and iterating through them */

      numjobs ++;

    } /* while(blendjob_ptr) */

  general_info.jobs_in_queue = (highest_jobnum - general_info.total_finished_jobs); /*< extraneous parentheses! */

}

// **** Structure Builder: This function creates frame array based on the total number of frames to be rendered, which will then be parsed by function frame_farmer.

void frame_num_struct_builder(struct blendjob *job, unsigned int startframe, unsigned int numframes) {

  int jobnum_new = highest_jobnum + 1; /* global vars will someday leave us  */

  unsigned int counter;

	job->frameset = malloc(sizeof(struct frameset) * numframes);

	if(!job->frameset)

	  fprintf(stderr, "error allocating memory");

	job->total_frames = numframes; // sets the total number of frames in animation for status purposes

	job->jobnum = jobnum_new;

	for(counter = 0; counter < numframes; counter ++)

	  /* This builds the array, with the array starting at zero and the frameset.num starting at sframe */

	  job->frameset[counter].num = counter + startframe;

	highest_jobnum++; // After it has created the job, it adds one to the highest_jobnum interger

}

/**

  Frame Finder: matches your computer up with a lovely frame to render

  TODO: Major issue here, the client needs to know the frame number, AND the job number!

  Notice that this function starts by looking at the oldest job first

	TODO: Link this up with the main() function to check if there are frames available or not and provide jobnum/framenum to the client

  @return 0 success, other: error

*/

int frame_finder(struct blendjob *head, struct blendjob **job, struct frameset **frame)

{

  int your_frame;  // your_frame is an integer value that will be given to the client as the frame number to render

  int your_job;	   // you_job is an integer value that must ALSO be given to the client

  unsigned short int found;

  unsigned short int priority;

  struct blendjob *blendjob_ptr;

  found = 0;

  while(!found)

    {

      /* enumerate through priority levels */

      for(priority = 10;

	  priority > 0

	    && !found;

	  priority --)

	/* Find the job with the highest priority */

	for(blendjob_ptr = head;

	    blendjob_ptr != NULL

	      && !found;

	    blendjob_ptr = blendjob_ptr->next)

	  if(blendjob_ptr->priority == priority)

	    found = 1;

      if(!found)

	{

	  fprintf(stderr, "out of jobs to render\n");

	  return 1;

	}

      found = 0;

      for(your_frame = 0;

	  your_frame < blendjob_ptr->total_frames;

	  your_frame ++)

	if(blendjob_ptr->frameset[your_frame].status == 0)

	  found = 1;

      if(!found)

	{

	  /* there are no frames left in this job */

	  blendjob_ptr->priority --;

	  /* If that job had no open frames for some reason, run the status report generator so that */

	  status_report_generator(&head);

	  /* should the job be removed now? */

	  fprintf(stderr, "Job %d is finished, this is probably the place to call the job-removal function\n", blendjob_ptr->jobnum);

	}

    } /* while(!found) */

  fprintf(stderr, "Missing apostrophe !!!!!!!!!!!!!!\n"); abort();

  /* sets the value of the frame to 1, which means its taken !!!!!! MISSSING APOSTROPHE!!!!!!! */

  blendjob_ptr->frameset[your_frame].status++;

  blendjob_ptr->frameset[your_frame].start_time = clock();

  *job = blendjob_ptr;

  *frame =  &blendjob_ptr->frameset[your_frame];

  return 0;

}

void blend_frame_watchdog(struct blendjob *blendjob_head)

{

  unsigned short int watchdog_forgiveness; /*< seconds to wait on a frame before re-assigning it */

  struct blendjob *blendjob_ptr;

  unsigned int counter;

  watchdog_forgiveness = 3; /*< hours of forgiveness before frame is re-assigned */

  blendjob_ptr = blendjob_head;

  for(blendjob_ptr = blendjob_head; blendjob_ptr; blendjob_ptr = blendjob_ptr->next)

    /* iterate through jobs */

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

      /* iterate through all frames for this job*/

      {

	if((blendjob_ptr->frameset[counter].start_time + (watchdog_forgiveness * 3600)) < clock())

	  /*

	    If frame is not completed within the number of hours specified by watchdog_forgiveness

	    Then change the frame status to unassigned

	  */

	  blendjob_ptr->frameset[counter].status = 0;

      }

}

/**

   Finds a blendjob struct based on the jobnum

   @arg jobnum job number to search for

   @return NULL on job doesn't exist

 */

struct blendjob *blendjob_get(struct blendjob *head, jobnum_t jobnum)

{

  struct blendjob *blendjob_ptr;

  /*

    The conditions of the for loop will leave blendjob_ptr at NULL if the end of the list is reached. It will leave it pointing to the correct job if it is found.

   */

  for(blendjob_ptr = head;

      blendjob_ptr

	&& blendjob_ptr->jobnum != jobnum;

      blendjob_ptr = blendjob_ptr->next);

  return blendjob_ptr;

}

/**

   Removes a blendjob from the blendjob linkelist.

   @arg head a double pointer. the head pointer will have to be changed if blendjob == *head. Thus, make sure that the pointer points to the pointer to the head that all functions use. (I'm going to come back to this and misunderstand myself ;-))

 */

void blendjob_remove(struct blendjob **head, struct blendjob *bj)

{

  struct blendjob *previous_blendjob;

  if(bj == *head)

    *head = bj->next;

  else

    {

      for(previous_blendjob = *head;

	  previous_blendjob

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

	  previous_blendjob = previous_blendjob->next)

	/* all of the action is in the definition of the for loop itself */;

      /*

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

       */

      previous_blendjob->next = bj->next;

    }

  /*

     @lordofwar: the magic deallocation of memory ;-)

   */

  free(bj);

}

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

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

{

/* TODO: Put some arg-grabbing code here */

// Begin non-working framework?

	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_END()

	    };

	  config = malloc(sizeof(struct distrend_config));

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

	  return 0;

	}

	int distrend_config_free(struct distrend_config *config)

	{

	  options_free(config->options);

	  free(config);

	  return 0;

	}

// End non-working framework?

  struct distrend_listenset *listenset;

  struct distrend_config *config;

  distrend_do_config(argc, argv, config);

  distrend_listen(&listenset, config);

  /* This is called the ``main loop'' */

  while(cont)

    {

      struct distren_action *action;

      distrend_accept(&action);

      cont = distrend_do(action);

      /* Somewhat Pseudo-code for basic server operation, should be more event-driven */

      start_data();

      status_report_generator(); // TODO: Add correct args

      blend_frame_watchdog();	 // TODO: Add correct args

      /* If the client is idle (meaning a client without the "busy" status connected via ssh) */

				if(frame_finder returns "didn't get a frame"){

					fprinf(stderr,"No frames are available to render at this time");

				}

				else(){

					remotio_send_to_client(framenum, jobnum);

				}

      	}

      /* If the client's status changes from running to idle */

      	if(clientstatus == DISTREN_REQUEST_DONEFRAME && iteration == 0){

      		finish_frame(jobnum, framenumprevious); // make it finish the previous frame or something.

      		frame_finder() ==> returns jobnum/framenum that are sent to slave, "render jobnum framenum"

      	}

      /* End Somewhat Pseudo-code */

      distrend_action_free(action);

    }

  distrend_unlisten(listenset);

  distrend_config_free(config);

  return 0;

}