void status_report_generator(){

	while(blendjob[(hcfjob+1)].priority == 0)  //If the job after the highest consecutively finished job is finished

		hcfjob++;  // adds 1 to the highest consecutively finished job and checks the next one, till the job after the hcfjob is not done

	int num1 = hcfjob+1; // to scan through jobs

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

	while(num1 <= highest_jobnum){

			if(blendjob[num1].priority != 0){ // If the job is not done, scan it

				int num2 = 0;  // to scan through frames

				float finished_frames = 0; // variable that counts the completed frames

				int pending_frames = 0; // variable that counts the assigned frames

				float percent = 0;  // variable that stores the percent done of the blendjob

				unsigned int total_time = 0;  // total time taken to render all the completed frames for a job

				while(num2 <= blendjob[num1].total_frames){ // scans through frames, based on their status it runs a statement(s)

					if(blendjob[num1].frameset[num2].frame_status == 2){ // If the frame is done

						finished_frames++;

						total_time = total_time + blendjob[num1].frameset[num2].time_to_render;

					}

					if(blendjob[num1].frameset[num2].frame_status == 1){ // If the frame is assigned

						pending_frames++;

						workers_working++;

					}

					num2++;

				}

				// find the percent of completed frames

				percent = (finished_frames / blendjob[num1].total_frames) * 100;

				// updates values in the blendjob struct for jobnum held by the variable num1

				blendjob[num1].completed_frames = finished_frames;

				blendjob[num1].assigned_frames = pending_frames;

				blendjob[num1].percent_done = percent;

				blendjob[num1].avg_render_time = (total_time / finished_frames);

				blendjob[num1].time_remaining = (blendjob[num1].avg_render_time * (blendjob[num1].total_frames - finished_frames));

				if(finished_frames == blendjob[num1].total_frames){  // If all frames are complete

					blendjob[num1].priority = 0;					//set priority to zero to indicate job is complete

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

				}

			}

			num1++;

			general_info.rendering_clients = workers_working;

		}

		general_info.jobs_in_queue = (highest_jobnum - general_info.total_finished_jobs);

	}

// **** 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 numframes) {

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

	int counter;

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

	if(!job->frameset)

	  fprintf(stderr, "error allocating memory");

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

	job->jobnum = jobnum_new;

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

	  /* This builds the array, with the array starting at zero and the frame_num starting at sframe */

	  job->frameset[counter].frame_num = counter + 1;

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

}

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

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

int frame_finder(){

	int your_frame = 0;  // your_frame is an interger value that will be given to the client as the frame number to render

	int finder_jobnum = 0;

	int frameset_count = 0; // the frameset number, note* frames in an animation don't start at zero

	short int done = 0;

	short int priority = 10;

	while(priority >= 1){ // start the scan for the next job with the highest priority, decreases priority before it loops

		finder_jobnum = hcfjob + 1; // reset it to start scanning at first uncompleted job for the pass at each priority level

		while(finder_jobnum <= highest_jobnum){  // This keeps increasing the finder_jobnum until it is higher than the highest_jobnum

			if(blendjob[finder_jobnum].priority == priority){  // looks for a job with the current priority value

				done = 1;									  // notice it starts by looking at the oldest job first

				break;

			}

			if((done) == 1)  // If it has found a job with the current priority value, it will break out of the loop

				break;    // If none is found it goes to the next job to see if it is of the current priority value

			else

				finder_jobnum++;

		} // End of increasing finder_jobnum

		if(done == 1) // if job has been found, it lets it out of the priority changer loop

			break;

		priority--; // end of decreasing priority

	}

	while(your_frame < blendjob[finder_jobnum].total_frames){ // Finds the frameset number with a frame that needs to be rendered

		if (blendjob[finder_jobnum].frameset[frameset_count].frame_status == 0)  // If frame that is not assigned has been found, frameset_count is not changed

			break;																// and frameset_count is used to give the frame number later in this funciton

		frameset_count++;  // If frame is assigned or done, it goes to next frame

	}

blendjob[jobnum].frameset[frameset_count].frame_status++; // sets the value of the frame to 2, which means its taken

your_frame = blendjob[jobnum].frameset[frameset_count].frame_num; //  Takes the frameset found in the while statement above, and extracts the frame number from it and assigns it to the int your_frame

if(your_frame == 0)  // If that job had no open frames for some reason, run the status report generator so that

	status_report_generator();  //the job priority can be changed to 0

blendjob[jobnum].frameset[frameset_count].start_time = clock();

return your_frame; // your_frame is returned as the frame to be rendered

}

void blend_frame_watchdog(){

  short int watchdog_forgiveness = 3; // Hours to wait on a frame before re-assigning it

  int num1 = hcfjob + 1;

  while(num1 <= highest_jobnum){  // counts up through all the jobs

    int num2 = 0;

    while(num2 <= blendjob[num1].total_frames){ // Counts up through all the frames

      if((blendjob[num1].frameset[num2].start_time + (watchdog_forgiveness * 3600)) < clock()) // If frame is not completed within the number of hours specified by watchdog_forgiveness

			  blendjob[num1].frameset[num2].frame_status = 0;								   // Then change the frame status to unassigned

      num2++;

    }

    num1++;

  }

}

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

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

{

//// Begin Getopt Sample, EDITME!Sometime

		   int aflag = 0;

	       int bflag = 0;

	       char *cvalue = NULL;

	       int index;

	       int c;

	       opterr = 0;

	       while ((c = getopt (argc, argv, "abc:")) != -1)

	         switch (c)

	           {

	           case 'a':

	             aflag = 1;

	             break;

	           case 'b':

	             bflag = 1;

	             break;

	           case 'c':

	             cvalue = optarg;

	             break;

	           case '?':

	             if (optopt == 'c')

	               fprintf (stderr, "Option -%c requires an argument.\n", optopt);

	             else if (isprint (optopt))

	               fprintf (stderr, "Unknown option `-%c'.\n", optopt);

	             else

	               fprintf (stderr,

	                        "Unknown option character `\\x%x'.\n",

	                        optopt);

	             return 1;

	           default:

	             abort ();

	           }

	       printf ("aflag = %d, bflag = %d, cvalue = %s\n",

	               aflag, bflag, cvalue);

	       for (index = optind; index < argc; index++)

	         printf ("Non-option argument %s\n", argv[index]);

//// End getopt sample

// 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?

  int cont = 1;

  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);

      distrend_action_free(action);

    }

  distrend_unlisten(listenset);

  distrend_config_free(config);

  return 0;

}

/*

 * **********************************************************************************

 * Slave functions / etc resides below. Wouldn't a seperate file make this easier??

 *

 * Slave listens on server for a command in the format of each function...

 * We need if's for returns... ==> watchdog

 * **********************************************************************************

*/

// Registration on server. Needs attention. Prevent account spamming.

// Key transfer?

// Set up something like: distrend -c username email@example.com

void registeruser(char *username, char *email){

  // Logs into sandboxed user on zserver2 and registers a user. Should eventually generate a key on the server and return it to the user.

  // All created user accounts should be sandboxed accordingly, requiring a different skel, and the default shell to be rbash. Also,

  // a custom path defined in the .bash_profile of the skel is needed.

  char buf[10];

  struct execio *testrem;

  char *execargv[] =

    {

  "ssh",

  "distren_setup@protofusion.org",

  "-i",

  "setup.rsa", // default distributed key, account can only create users.

  "-p",

  "23",

  "sudo /usr/sbin/useradd",

  "-M",

  "-c",

  email,

  "-d",

  "/home/distren",

  "--gid",

  "541", // Add in shellscript to generate ssh key and return it to the user somehow

  username,

  (char *)NULL

  };

  size_t readlen;

  fprintf(stderr, "Opening stream:\n", execio_open(&testrem, "ssh", execargv));

  buf[9] = '\0'; // null-terminating the array...

  while(!execio_read(testrem, buf, 9, &readlen)) // What's with the readlen stuff?

    {

      if(readlen > 9) {

	fprintf(stderr, "!!!! Something is terribly wrong!\n");

      }

    buf[readlen] = '\0'; // Null-terminating the end of it again based on how large the data is?

    fprintf(stderr, "read \"%s\"\n", buf);

    }

  execio_close(testrem);

}

void loginuser(char *username){

  // Logs into sandboxed user on zserver2 as a client, currently does nothing

  char buf[10];

  struct execio *testrem;

  char *execargv[] =

    {

  "ssh",

  "username@protofusion.org", // username must be read from the conf

  "-i",

  "username.rsa", // Key created from registeruser()

  "-p",

  "23",

  "echo",

  "hello", // This should eventually open a non-terminating connection to the server for communication

  (char *)NULL

  };

  size_t readlen;

  fprintf(stderr, "Opening stream:\n", execio_open(&testrem, "ssh", execargv));

  buf[9] = '\0'; // null-terminating the array...

  while(!execio_read(testrem, buf, 9, &readlen)) // What's with the readlen stuff?

    {

      if(readlen > 9) {

	fprintf(stderr, "!!!! Something is terribly wrong!\n");

      }

    buf[readlen] = '\0'; // Null-terminating the end of it again based on how large the data is?

    fprintf(stderr, "read \"%s\"\n", buf);

    }

  execio_close(testrem);

}

// Executors

// It seems that the client will need to know the job number. Is finish_frame going to be on the client or the server? we gotta figure that out!

void exec_blender(char *input, char *output, int frame, int jobnum) {

  char *frame_str;

  asprintf(frame,frame_str); // GNU/*nix compatible only, fix before releasing win32, although dll for windows for asprintf exists!

  int ret;

  char *cmd[] = { "blender", "-b", "-o", output, input, "-f", frame_str, (char *)0 };

  ret = execv("/usr/bin/blender", cmd);

  finish_frame(jobnum, frame);

}