// Variables needed for main loop

  int jobnum = 0;

  int framenum = 0;

  int slavekey = atoi(username); // @TODO: Make this more friendly

  char *urltoTar;      /* Full URL to the server-side location of job#.tgz */

  char *pathtoTar;     /* Full path to the location of the job#.tgz */

  char *pathtoTardir;

  // Temporary for uncompressed testing

  // char *urltoJobfile;

  char *urltoOutput;   /* Full URL where output is posted */

  char *pathtoOutput;  /* Full path to the output (rendered) file */

  char *pathtoOutdir;  /* Full path to output directory */

  char *pathtoRenderOutput; /* Contains blender framenum placeholder */

  char *urltoJobfile; /* Used if we aren't using compression */

  char *pathtoJob; /* Path to job data folder */

  char *pathtoJobfile; /* Full path to the job's main file */

  char *outputExt = "jpg";     /* Output Extension (e.g., JPG) */

  int haveWork = 0;

  int quit = 0;

  fprintf(stderr,"\nDistRen SimpleSlave Pre-Alpha %s\n- Experimental build: Use at your own risk!\n\n", PACKAGE_VERSION);

  /* @TODO @FIXME create datadir (/var/distren/) if it doesn't exist, or notify the user */

  int benchmarkTime = 0;

  int renderPower = 0;

  // @TODO: create _web function to force recalc if !isset($render_power) on server

  if(runBenchmark)

    {

      if(slaveBenchmark(datadir, &benchmarkTime, &renderPower))

	{

	  fprintf(stderr,"Benchmark failed! Exiting.\n");

	  return 1;

	}

      else

	{

	  fprintf(stderr,"Benchmark successful, time taken was %d seconds, giving you a render power of %d.\n",

		  benchmarkTime, renderPower);

	  _web_setrenderpower(slavekey, password, renderPower);

	  return 0;

	}

    }

  if(!DEBUG)

    fprintf(stderr, "Running..");

  // Main loop

  while(!quit)

    {

    // request work

    if(DEBUG)

      fprintf(stderr,"Requesting work from %s...\n", hostname);

    haveWork = _web_getwork(slavekey, password, &jobnum, &framenum);

    /* If we got a frame */

    if(haveWork)

      {

        fprintf(stderr,"Got work from server...\n");

        if(DEBUG)

          fprintf(stderr, "Preparing to render frame %d in job %d\n", framenum, jobnum);

        prepareJobPaths(jobnum, framenum, outputExt, datadir, &urltoTar, &pathtoTar, &pathtoTardir, &pathtoJob, &pathtoJobfile, &urltoJobfile, &urltoOutput, &pathtoOutput, &pathtoRenderOutput, &pathtoOutdir);

        //free(outputExt);

        mkdir(pathtoTardir, 0700);

        int dlret = downloadTar(urltoTar, pathtoTar);

        //int dlret = downloadTar(urltoJobfile, pathtoJobfile);

        if(dlret == 0)

          fprintf(stderr,"Data retrieved successfully!\n");

        else if(dlret == 3){

          _web_resetframe(slavekey, password, jobnum, framenum);  // Unassign the frame on the server so other slaves can render it

          return 0; // ouput dir doesn't exist

        }

        else

          if(DEBUG)

            //fprintf(stderr,"Using existing uncompressed data %s...\n", pathtoJobfile);

            fprintf(stderr,"Using existing tarball %s...\n", pathtoTar);

        // Check if tar exists already

        struct stat jbuffer;

        int jstatus = stat(pathtoJobfile, &jbuffer);

        if(jstatus == -1){

          fprintf(stderr,"Main job file does not exist, extracting...\n");

          // If error unpacking tarball

          if(unpackJob(pathtoJob, pathtoTar)){

            _web_resetframe(slavekey, password, jobnum, framenum);  // Unassign the frame on the server so other slaves can render it

            fprintf(stderr,"Extraction failed, exiting.\n");

            return 1;

          }

        }

	else{

	  if(DEBUG)

	    fprintf(stderr,"Using already extracted data.\n");

        }

        struct stat tbuffer;

        int tstatus = stat(pathtoJobfile, &tbuffer);

	if(tstatus == -1){

          fprintf(stderr,"The main job file does not exist! Data may be corrupt, or the archive is malformatted.\n");

          return 1;

        }

        /* ignore return because directory may exist already */

        if(DEBUG)

          fprintf(stderr,"Creating output directory %s\n", pathtoOutdir);

        mkdir(pathtoOutdir, 0700);

        if(DEBUG)

          fprintf(stderr,"Marking frame started on server... ");

        _web_startframe(slavekey, password, jobnum, framenum);

        /* Execute blender */

        if(DEBUG){

          fprintf(stderr,"Executing blender on file %s\n", pathtoJobfile);

          fprintf(stderr,"Directing output to file %s\n", pathtoOutput);

        }

        if(exec_blender(pathtoJobfile, pathtoRenderOutput, framenum))

          {

            fprintf(stderr,"Error running Blender. Check your installation and/or your PATH.\n");

            _web_resetframe(slavekey, password, jobnum, framenum);  // Unassign the frame on the server so other slaves can render it

            return 1;

          }

        free(pathtoJobfile);

        pathtoJobfile = NULL;

        struct stat buffer;

        int fstatus = stat(pathtoOutput, &buffer);

        if(fstatus == -1){

          fprintf(stderr,"*** %s doesn't exist! Scene may not have camera, or your blender installation is not working.\n", pathtoOutput);

          _web_resetframe(slavekey, password, jobnum, framenum);  // Unassign the frame on the server so other slaves can render it

          return 1;

        }

        else{

          /* Post-execution */

          if(DEBUG)

            fprintf(stderr, "Finished frame %d in job %d, uploading...\n", framenum, jobnum);

          else

            fprintf(stderr,"Finished.\n");

          uploadOutput(pathtoOutput, urltoOutput, jobnum, framenum, slavekey); // @TODO: Handle return value

          free(urltoOutput);

          free(pathtoOutput);

          urltoOutput = NULL;

          pathtoOutput = NULL;

          // Tell the server that rendering and upload are complete

          _web_finishframe(slavekey, password, jobnum, framenum);

        }

      }

    else{

      if(DEBUG)

        fprintf(stderr,"No work to do. Idling...\n");

      else

        fprintf(stderr,".");

      sleep(300); // Poll every 300 seconds @TODO: remove polling

    }

    // @TODO: If the server says that every frame for the last jobnum is finished, OR if the data is getting old

    if(1 == 0)

      {

        // Note: individual frames are already deleted after uploading,

        // except for ones that couldn't be uploaded

        delete_jobdata(jobnum, datadir);

      }

  }

  free(my_cfg);

  free(outputExt);

  free(datadir);

  free(urltoTar);

  free(pathtoTar);

  free(pathtoTardir);

  free(pathtoJob);

  free(pathtoJobfile);

  free(urltoJobfile);

  free(urltoOutput);

  free(pathtoRenderOutput);

  free(pathtoOutdir);

  fprintf(stderr,"Goodbye!\n");

  return 0;

}