frame[frame] Status Assignments:

  "NULL" - don't render me

  "0" - canceled

  "1" - unassigned

  "2" - assigned to slave

  "3" - completed by slave and uploaded

*/

struct general_info {

  short int jobs_in_queue; //

  unsigned short int free_clients;

  unsigned short int rendering_clients;//

  unsigned short int total_finished_jobs; //

  unsigned int total_frames_rendered; //

  unsigned int highest_jobnum;

} general_info;

/*

  internally defined funcs's prototypes

*/

void status_report_generator(struct distrenjob **distrenjobs_head);

void distrenjob_remove(struct distrenjob **head, struct distrenjob *bj);

struct distrenjob *distrenjob_get(struct distrenjob *head, jobnum_t jobnum);

struct distrenjob *head; /*@TODO:declare struct with no starting data */

/* 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 ************************* */

/** Dumps all data in RAM to an xml file (such as current jobs, etc) which is parsed by start_data. Remember to invoke this before shutting down! */

int xml_dump()

{

  return 0;

}

/**

   Performs command stored in a client's request.

*/

int distrend_do()

{

  return 0;

}

  if(stat(SYSCONFDIR "/data.xml", &buffer) == 0){

    // @TODO: retrieve total_finished_jobs and total_finished_frames from xml file

    fprintf(stderr,"Parsing XML files and restoring previous state...\n");

    return 1;

  }

  else{

    general_info.total_finished_jobs = 0;

    general_info.total_frames_rendered = 0;

    fprintf(stderr,"Can't find XML dump, starting up fresh.\n");

    return 2;

  }

  free(&buffer); // @TODO: Is this pointless?

}

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

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

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

  distrenjob->frameset[frame].time_to_render = (clock() - distrenjob[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

}

  struct distrenjob *distrenjob;

  distrenjob->type = 1; /*@TODO: add type to blendjob struct*/

  distrenjob->name = name;

  distrenjob->submitter = submitter;

  distrenjob->email = email;

  distrenjob->priority = priority;

  distrenjob->total_frames = (end_frame - start_frame + 1); // sets the total number of frames in animation for status purposes

  /* @TODO: what does this do? frameset array is declared above */

  /*

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

  if(!job->frameset)

    fprintf(stderr, "Error allocating memory\n");

  */

  /* prepares all the frames by setting that status to "unassigned" */

  for(counter = 0; counter <= (end_frame- start_frame + 1); counter++){

    distrenjob->frameset[counter].num = counter2;

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

    counter2++;

  }

  /* @TODO: change frame_num_struct_builder to add_blendjob_to_queue */

  add_job_to_queue(distrenjob);

  general_info.jobs_in_queue++;

}

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

int queue(struct distrenjob *distrenjob, 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){

    distrenjob->name = name;

    distrenjob->submitter = submitter;

    distrenjob->email = email;

    distrenjob->priority = priority;

    distrenjob->frameset = frameset;

  }

  // iterate through linked list of jobs

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

    if(current_job == NULL){ // if it has reached the end of the list, add job there

      current_job = job;

      break;

    }

    else if(job->priority < current_job->priority){ // if job's priority is less than current_job's priority, insert job

      prev_job->next = job;                        // keep in mind 1 is the lowest priority

      job->next = current_job;

      break;

    }

    prev_job = current_job;

  } // end of for statement

}

void change_job_priority(int jobnum, int new_priority){

  struct distrenjob *job;

  job = remove_job(jobnum);

  job->priority = new_priority;

  add_job_to_queue(job);

}

  struct distrenjob *job;

  struct distrenjob *prev_job = head;

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

    if(job == NULL){

      return NULL;

    }

    if(job->jobnum = jobnum_t){

      prev_job = job->next;

      return job;

    }

    prev_job = job;

  }

  // job was not found if this point is reached

  return NULL;

}

/**

  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!

void distrenjob_remove(struct distrenjob **head, struct distrenjob *bj)

{

  struct distrenjob *previous_distrenjob;

  if(bj == *head)

    *head = bj->next;

  else

    {

      for(previous_distrenjob = *head;

        previous_distrenjob

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

          previous_distrenjob = previous_distrenjob->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_distrenjob->next = bj->next;

    }

  /*

     @lordofwar: the magic deallocation of memory ;-)

   */

  free(bj);

}

/* 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;