/* Notifies the user if there no username in .conf */

  if(checkUsername(username))

    return 1;

  fprintf(stderr, "Connecting to server...\n");

  if(remoteio_open(&comm_slave, commonopts->remoteio, server))

    {

      fprintf(stderr, "Error connecting to server; exiting\n");

      return 1;

    }

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

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

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

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

  int haveWork = 0;

  int quit = 0;

  // Main loop

  while(!quit)

    {

    // request work

    fprintf(stderr,"Requesting work...\n");

    sendSignal(comm_slave, DISTREN_REQUEST_GETWORK);

    /* If we got a frame */

    if(haveWork)

      {

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

        /* @TODO: Add remotio hooks */

        // jobnum = remoteio_read(jobnum); /* Set jobnum from remoteio (we could use info from struct, but we need this info to download the xmlfile */

        // framenum = remoteio_read(jobnum); /* Set framenum from remoteio */

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

        if(downloadTar(urltoTar, pathtoTar))

          return 1;

        unpackJob(pathtoTar, jobnum);

        /* Execute blender */

        if(exec_blender(pathtoJobfile, pathtoOutput, framenum))

          {

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

            return 1;

          }

        free(pathtoJobfile);

        /* Post-execution */

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

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

        free(urltoOutput);

        free(pathtoOutput);

        // Tell the server that rendering and upload are complete of "jobjum.framenum"

	char *jobFrame;

	_distren_asprintf(&jobFrame, "%s.%s", jobnum, framenum);

        sendExtSignal(comm_slave, DISTREN_REQUEST_DONEFRAME, jobFrame);

	free(jobFrame);

      }

    else

      fprintf(stderr,"Nothing to do. Idling...\n");

  archive_read_finish(a);

  archive_entry_free(ae);

  return 0;

/*

  char *tarcmd;        // Command to run for tar. Migrate to libtar sometime

  char *outdir;        // Output Directory for tar

  _distren_asprintf(&outdir, "/tmp/distren/job%d", jobnum);

  mkdir("/tmp/distren", 0750); // @FIXME: Change to tmpdir once it exists

  mkdir(outdir, 0750);

  _distren_asprintf(&tarcmd, "tar -xvf \"%s\" -C \"%s\"", pathtoTar, outdir); // @FIXME:Use a lib here!

  system(tarcmd);

  free(tarcmd);

  free(pathtoTar);

  free(outdir);

  return 0;

  */

}

  // Variable Preparation

  char *jobdatapath;

   _distren_asprintf(&jobdatapath, "job%d", jobnum);

   _distren_asprintf(urltoTar, "http://data.distren.org/job%d/job%d.tar.gz", jobnum); // Prepares URL to download from

   _distren_asprintf(pathtoTar, "%s/stor/jobdata/job%d.tar.gz", datadir, jobnum); // Prepares destination to save to

   _distren_asprintf(pathtoJobfile, "%s/%s/job.blend", datadir, jobdatapath ); // Prepares the path to the jobfile

   _distren_asprintf(urltoOutput, "http://distren.org/slaveUpload.php"); // Prepares the URL where output is posted

   free(jobdatapath);

}

int checkUsername(char *username){

  if(username == NULL || strcmp(username, "!username") == 0 ) {

     fprintf(stderr, "\nPlease ensure that your username is present in distrenslave.conf\n");

     return 0;

   }

   else

     if( username != NULL || strcmp(username, "!username") != 0 )

       {

         // Log in the user

         if(login_user(username) == 1){

           fprintf(stderr, "You should now be logged into distren.\n");

           return 0;

         }

         else

           {

             fprintf(stderr, "Login failed, please check your username. If you have not registered, please do so on the DistRen website.\n");

             return 1;

           }

       }

     else

       {

#include <stdio.h>

struct msg;

int sendSignal(struct remoteio *rem, char signal);

int sendExtSignal(struct remoteio *rem, char signal, char *data);

xmlNodePtr xml_quickxpath(xmlXPathContextPtr xpathctxt, xmlChar *path);

int software_updatecheck();

int delete_jobdata(int jobnum, char *datadir);

size_t curl_writetodisk(void *ptr, size_t size, size_t nmemb, FILE *stream);

int curlget(char *url, char *out);

int curlpost(char *filename, char *url, int jobnum, int framenum, int slavekey);

int ssh_keygen();

int register_user(char *username, char *email);

int login_user(char *username);

int conf_replace(char *conffile, char *wordtoreplace, char *replacewith);

int exec_blender(char *input, char *output, int frame);

void xmlinit();

void xmlcleanup();

int distren_mkdir_recurse(char *dirname);

int job_build_path(char *filename, unsigned int jobnum);

int downloadTar(char *url, char *destinationPath);

int uploadOutput(char *pathtoOutput, char *urltoOutput, int jobnum, int framenum, int slavekey);

int unpackJob(char *pathtoTar, int jobnum);

int checkUsername(char *username);

void slaveTest();

/* Simple slave */

struct _web_memorystruct;

static void *_web_myrealloc(void *ptr, size_t size);

static size_t _web_writememorycallback(void *ptr, size_t size, size_t nmemb, void *data);

struct _web_memorystruct _web_getrequest(char *url);

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

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

void _web_getwork(int slavekey, char *slavepass, int *jobnum, int *framenum);

void _web_setrenderpower(int slavekey, char *slavepass, int jobnum, int framenum);

#endif