// fprintf(stderr,"Preparing to get request at %s",url);

  CURL *curl;

  CURLcode res;

  struct _web_memorystruct chunk;

  chunk.memory=NULL; /* we expect realloc(NULL, size) to work */

  chunk.size = 0;    /* no data at this point */

  curl = curl_easy_init();

  if(curl) {

    curl_easy_setopt(curl, CURLOPT_URL, url);

    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, _web_writememorycallback);

    curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);

    curl_easy_setopt(curl, CURLOPT_USERAGENT, "libcurl-agent/1.0");

    res = curl_easy_perform(curl);

    curl_easy_cleanup(curl);

  }

  /* we're done with libcurl, so clean it up */

  curl_global_cleanup();

  return chunk; // 0 is OK, 1 is 404 or other error

}

void _web_finishframe(int slavekey, char *slavepass, int jobnum, int framenum){

  char *url;

  _distren_asprintf(&url,"http://dev.distren.org/slave/act.php?mode=finishframe&slavekey=%d&slavepass=%s&jobnum=%d&framenum=%d", slavekey, slavepass, jobnum, framenum);

  struct _web_memorystruct data = _web_getrequest(url);

  free(url);

  fprintf(stderr,"%s\n", data.memory);

  if(data.memory)

    free(data.memory);

}

void _web_resetframe(int slavekey, char *slavepass, int jobnum, int framenum){

  fprintf(stderr,"Resetting frame %d in job %d on server... ",framenum,jobnum);

  char *url;

  _distren_asprintf(&url,"http://dev.distren.org/slave/act.php?mode=resetframe&slavekey=%d&slavepass=%s&jobnum=%d&framenum=%d", slavekey, slavepass, jobnum, framenum);

  struct _web_memorystruct data = _web_getrequest(url);

  free(url);

  fprintf(stderr,"%s\n", data.memory);

  if(data.memory)

    free(data.memory);

}

void _web_startframe(int slavekey, char *slavepass, int jobnum, int framenum){

  if(DEBUG)

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

  char *url;

  _distren_asprintf(&url,"http://dev.distren.org/slave/act.php?mode=startframe&slavekey=%d&slavepass=%s&jobnum=%d&framenum=%d", slavekey, slavepass, jobnum, framenum);

  struct _web_memorystruct data = _web_getrequest(url);

  free(url);

  fprintf(stderr,"%s\n", data.memory);

  if(data.memory)

    free(data.memory);

}

int _web_getwork(int slavekey, char *slavepass, int *jobnum, int *framenum){

  char *url;

  _distren_asprintf(&url,"http://dev.distren.org/slave/act.php?mode=getwork&slavekey=%d&slavepass=%s", slavekey, slavepass);

  struct _web_memorystruct data = _web_getrequest(url);

  free(url);

  if(!data.memory || !strcmp(data.memory,",")){

    fprintf(stderr,"No work available on server!\n");

    return 0;

  }

  else if(!strcmp(data.memory, "ERROR_BADKEY")){

    fprintf(stderr,"*** Slave %d does not exist!\n",slavekey);

    free(data.memory);

    return 0;

  }

  // Compare to PACKAGE_VERSION

  else{

    char *tmp;

    char *serverversion;

    tmp = strtok (data.memory,",,");

    if(tmp != NULL){ // make sure work is available

      *jobnum = atoi(tmp);

      tmp = strtok (NULL, ",");

      if(tmp == NULL)

        return 0; // no work

      *framenum = atoi(tmp);

      tmp = strtok (NULL, ",");

      if(tmp == NULL)

        return 0; // no work

      serverversion = tmp;

      if(strcmp(PACKAGE_VERSION,serverversion)){

        fprintf(stderr,"Your distren package is out of date! Please acquire a newer version. (%s local vs %s remote)\n", PACKAGE_VERSION, serverversion);

        return 0;

      }

      free(data.memory);

      return 1;

    }

    else

      return 0; // error

  }

}

void _web_setrenderpower(int slavekey, char *slavepass, int renderpower){

  fprintf(stderr,"Setting render power on server... ");

  char *url;

  _distren_asprintf(&url,"http://dev.distren.org/slave/act.php?mode=setrenderpower&slavekey=%d&slavepass=%s&renderpower=%d", slavekey, slavepass, renderpower);

  struct _web_memorystruct data = _web_getrequest(url);

  free(url);

  fprintf(stderr,"%s\n", data.memory);

  if(data.memory)

    free(data.memory);

}

int slaveBenchmark(char *datadir, int *benchmarkTime, int *renderPower){

  int ret;

  int frameToRender = 1;

  char *frame_str;

  _distren_asprintf(&frame_str, "%d", frameToRender); // Render frame 1

  char *output;

  _distren_asprintf(&output, "%s/benchmark#.jpg", datadir); // Where to save benchmark output

  char *realOutput;

  _distren_asprintf(&realOutput, "%s/benchmark%d.jpg", datadir, frameToRender); // Where to save benchmark output

  char *input;

  _distren_asprintf(&input, "%s/benchmark.blend", datadir); // Input file

  fprintf(stderr,"Downloading benchmark data...\n");

  curlget("http://data.distren.org/benchmark.blend", input); // Download to input file location

  char *command = "blender"; // @TODO: We currently expect this to be in PATH

  char *cmd[] = { command, "-b", input, "-o", output, "-f", frame_str, "-t", "0", (char *)NULL }; // arguments for blender

  // fprintf(stderr,"Preparing to execute command: %s -b %s -o %s -f %s\n", command, input, output, frame_str);

  fprintf(stderr,"Running benchmark...\n");

  long startTime;

  long endTime;

  time(&startTime);

  char buf[20];

  struct execio *testrem;

  size_t readlen;

  ret = execio_open(&testrem, command, cmd);

  if(ret)

    {

      fprintf(stderr, "Error executing blender\n");

      return 1;

    }

  buf[19] = '\0';

  while(!execio_read(testrem, buf, 19, &readlen))

    {

       buf[readlen] = '\0';

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

    }

  execio_close(testrem);

  time(&endTime);

  struct stat buffer;

  int ostatus = stat(realOutput, &buffer);

  if(ostatus == -1){

    ret = 1; // Return error if output wasn't generated

  }

  else

    remove(output);

  *benchmarkTime = abs(difftime(startTime,endTime));

  float tmp = *benchmarkTime;

  tmp = (1/tmp) * 50000;

  *renderPower = (int)tmp;

  free(realOutput);

  free(frame_str);

  free(input);

  free(output);

  return ret;

}