bin_PROGRAMS = distrend distrenslave

distrend_SOURCES = distrend.c ${COMMON_SOURCES}

distrend_LDADD = @DISTLIBS_LIBS@ @top_builddir@/src/common/libdistrencommon.la

distrend_CFLAGS = @DISTLIBS_CFLAGS@ -I@top_srcdir@/src/common

distrenslave_SOURCES = slave.c ${COMMON_SOURCES}

distrenslave_LDADD = @DISTLIBS_LIBS@ @top_builddir@/src/common/libdistrencommon.la

distrenslave_CFLAGS = @DISTLIBS_CFLAGS@ -I@top_srcdir@/src/common

 *  single frames. Maybe not tell it what frames to render in the xml file, the server

 *  can spit out that info.

 *

 *  Please edit my ramblings if you please,

 *  --ethanzonca

 *

 */

#include "execio.h"

#include "options.h"

#include "protocol.h"

#include "slavefuncs.h"

#include <confuse.h>

#include <stdio.h>

#include <stdlib.h>

#include <malloc.h>

#include <unistd.h> /* getopt */

#include <time.h>

  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; //

} general_info;

/*

  internally defined funcs's prototypes

*/

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

/* Functions to stubify */

/**

/** Fill variables after crash / shutdown from XML dumps */

void start_data(){

  if(1 == 0){

    // retrieve total_finished_jobs and total_finished_frames from xml file

  }

  else{

    general_info.total_finished_jobs = 0;

    general_info.total_frames_rendered = 0;

  }

}

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

  general_info.total_frames_rendered++; // Increase total frames var for stats

}

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

  // Type: 1 = blender, add more types later

  // jobnum is the next available job number

  if(type == 1){

  }

  else{

    // Throw error.

  }

jobnum++; // Advance the jobnumber for the next queued job

}

/**

  Status Report Generator:

  -figures out how much of the job is done, where jobnum corresponds to the job number

  -removes finished jobs

*/

{

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

  unsigned int numjobs; /*< used to track number of jobs */

  workers_working = 0;

  numjobs = 0;

    {

	/* If the job is not done, scan it */

	{

	  unsigned int framecounter;  /*< to scan through frames */

	  unsigned long finished_frames; /*< variable that counts the completed frames */

	  unsigned int pending_frames; /*< variable that counts the assigned frames */

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

	  framecounter = 0;

	  finished_frames = 0;

	  pending_frames = 0;

	  percent_frames_finished = 0;

	  total_time = 0;

	    /* scans through frames, based on their status it runs a statement(s) */

	    {

		/* If the frame is done */

		{

		  finished_frames ++;

		}

		/* If the frame is assigned */

		{

		  pending_frames ++;

		  workers_working ++;

		}

	      framecounter ++;

	  // find the percent of completed frames

	    /* If all frames are complete */

	    {

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

	    }

	    /* just in case ;-) */

	    {

		      __FILE__, __LINE__,

		      finished_frames,

	      abort();

	    }

	}

      general_info.rendering_clients = workers_working; /*< should this be a +=? */

      numjobs ++;

  general_info.jobs_in_queue = (highest_jobnum - general_info.total_finished_jobs); /*< extraneous parentheses! */

}

/** 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. */

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

  unsigned int counter;

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

  if(!job->frameset)

    fprintf(stderr, "error allocating memory");

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

  job->jobnum = jobnum_new;

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

    /* This builds the array, with the array starting at zero and the frameset.num starting at sframe */

/**

  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!

  Notice that this function starts by looking at the oldest job first

	TODO: Link this up with the main() function to check if there are frames available or not and provide jobnum/framenum to the client

  @return 0 success, other: error

*/

{

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

  // UNUSED: int your_job;	   // @TODO: Fixme: do we need this var? you_job is an integer value that must ALSO be given to the client

  unsigned short int found;

  unsigned short int priority;

  found = 0;

  while(!found)

    {

      /* enumerate through priority levels */

      for(priority = 10;

        priority > 0

            && !found;

           priority --)

	/* Find the job with the highest priority */

            && !found;

	    found = 1;

      if(!found)

        {

          fprintf(stderr, "out of jobs to render\n");

          return 1;

        }

      found = 0;

      for(your_frame = 0;

        your_frame ++)

          found = 1;

      if(!found)

        {

          /* there are no frames left in this job */

	  /* If that job had no open frames for some reason, run the status report generator so that */

          status_report_generator(&head);

          /* should the job be removed now? */

        }

    } /* while(!found) */

  fprintf(stderr, "Missing apostrophe !!!!!!!!!!!!!!\n"); abort();

  /* sets the value of the frame to 1, which means its taken !!!!!! MISSSING APOSTROPHE!!!!!!! */

  return 0;

}

/** Checks for dying slaves */

{

  unsigned short int watchdog_forgiveness; /*< seconds to wait on a frame before re-assigning it */

  unsigned int counter;

  watchdog_forgiveness = 3; /*< hours of forgiveness before frame is re-assigned */

    /* iterate through jobs */

      /* iterate through all frames for this job*/

      {

          /*

            If frame is not completed within the number of hours specified by watchdog_forgiveness

            Then change the frame status to unassigned

           */

      }

}

/**

   @arg jobnum job number to search for

   @return NULL on job doesn't exist

 */

{

  /*

   */

}

/**

 */

{

  if(bj == *head)

    *head = bj->next;

  else

    {

	/* 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

       */

    }

  /*

     @lordofwar: the magic deallocation of memory ;-)

   */

  free(bj);

}

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

      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()

    };

  int tmp;

  xmlinit();

  /*

   * test xml2distrenjob()

   */

  tmp = xml2distrenjob(&distrenjob, "distrenjob.xml.example");

  if(tmp)

    fprintf(stderr, "xml2distrenjob() returned %d. Try to cd to distren/doc if you want to test out the xml2distrenjob() function. (This will only fix this error if the error is due to an inability of the xml library to access distrenjob.xml.example)\n", tmp);

  else  

    fprintf(stderr, "using email ``%s'' for user ``%s'' -- reading in XML files and pulling data from them using libxml2+XPath works!!!\n", distrenjob->email, distrenjob->submitter);

  options_free(config->options);

  free(config);

  return 0;

}

// End non-working framework?

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

{

  /* @TODO: Put some arg-grabbing code here */

  int cont;

  struct distrend_listenset *listenset;

  struct distrend_config *config;

  start_data(); // Starts fresh or loads data from xml dump

  enum clientstatus

  {

    CLIENTSTATUS_UNINITIALIZED = 0,

    CLIENTSTATUS_BUSY = 1,

    CLIENTSTATUS_IDLE = 2

      struct distren_action *action;

      int clientsays; /*< temporary example variable, will be replaced when we can handle messages */

      distrend_accept(&action);

      cont = distrend_do(action);

      /* Make the following code more event-driven */

      status_report_generator(&head);

      blend_frame_watchdog(head);

      struct frameset *frame;

      /* If the client is idle, must be modified for climbing through linked list of clients (client->clientnum) */

      if(clientstatus == CLIENTSTATUS_IDLE)

	{

	  int returnnum = frame_finder(head, &job, &frame); // Finds a frame to render

	  if(returnnum)

	    {

	      fprintf(stderr,"No frames are available to render at this time. Idling...\n");

	      sleep(10);

	    }

	  else

	    /* returnnum == 0 */

  the Free Software Foundation, either version 3 of the License, or

  (at your option) any later version.

  DistRen is distributed in the hope that it will be useful,

  but WITHOUT ANY WARRANTY; without even the implied warranty of

  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  GNU Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License

  along with DistRen.  If not, see <http://www.gnu.org/licenses/>.

*/

#include "slavefuncs.h"

#include "asprintf.h"

#include <libxml/tree.h>

#include <libxml/parser.h>

{

  dj = *distrenjob;

  xmlFree(dj->name);

  xmlFree(dj->submitter);

  xmlFree(dj->email);

  free(dj);

  *distrenjob = NULL;

}

{

  if(!dj)

    {

      /* try to catch code that doesn't respect return values

       faster: */

      *distrenjob = NULL;

      return 1;

    }

  *distrenjob = dj;

  dj->next = NULL;

  dj->name = (char *)NULL;

  dj->submitter = (char *)NULL;

  dj->completed_frames = 0;

  dj->assigned_frames = 0;

  dj->avg_render_time = 0;

  dj->time_remaining = (unsigned int)-1;

  dj->frameset = (struct frameset *)NULL; /*< @todo does frameset need to be initialized here? */

  return 0;

}

/**

   writes struct from xml 

*/

{

  xmlDocPtr xmldoc;

  xmlNodePtr xmlnode;

  xmlChar *xmlchar;

  xmlXPathContextPtr xmlxpathcontext;

  int tmp;

  if(distrenjob_new(distrenjob))

    return 1;

  dj = *distrenjob;

  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  GNU Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License

  along with DistRen.  If not, see <http://www.gnu.org/licenses/>.

*/

#ifndef _DISTREN_BLENDJOB_H

#define _DISTREN_BLENDJOB_H

/**

 */

#include <time.h> /* clock_t, time_t */

typedef unsigned int jobnum_t;

/**

   Stores Blender Job Info

*/

  char *name;

  char *submitter;

  char *email; /*< This should be looked up based on the value of submitter, not stored in this struct */

  jobnum_t jobnum;

  int priority;  // 1 is lowest, 10 is highest, 0 means the job is done

  float percent_done;

  int completed_frames; // number of completed frames for stats/etc

  int assigned_frames; // number of assigned frames (that are not yet completed) for stats/etc

  int total_frames; // how many frames are in the animation for stats/etc (unassigned frames)

  time_t avg_render_time; // average seconds it took to render a frame

  time_t time_remaining; /*< estimated seconds remaining till render is complete (up to 49, 710 days) */

  struct frameset *frameset;

  int time_to_render; /*< the total seconds it took to render the frame */

}; /* Frameset array is generated by status_report_generator() */

/*

related functions 

*/

/**

   @param distrenjob the address where we will store the pointer of a malloc()ed

   distrenjob struct.

 */

/**

   support function for xml2distrenjob() to help cleaning up a

   Also acts as a general-purpose struct distrenjob free()er ;-)

 */

/**

   initializes an empty, pointless struct distrenjob. This 

   DOES run malloc() for you. It could return nonzero on error,

   but there are no errors to have yet (except for nomem). This 

   sets all char* to NULL.

 */

#endif

              fprintf(stderr, "Using cached job file...\n");

              curlget(urltoTar, pathtoTar); // Downloads the Tar @TODO: add a progressbar

      }

    _distren_asprintf(&outdir, "/tmp/distren/job%d", jobnum); /*< @todo free() */

    mkdir("/tmp/distren", 0750);

    mkdir(outdir, 0750);

    _distren_asprintf(&tarcmd, "tar -xvf \"%s\" -C \"%s\"", pathtoTar, outdir);

    system(tarcmd);

    free(tarcmd);

    // Consider placing the following in the exec_blender() function

    while(busy == 1){

      tell_the_server(DISTREN_REQUEST_PROGRESS);

        fprintf(stderr, "Rendering frame %d in job %d...",framenum,jobnum);

        sleep(5); // or not... this should be more event-driven, but should still give a heartbeat to the server

      }

    busy = 2;

    busy = 1; // When done rendering, set this.

     }

    // When blender is finished, run this...

      if(busy==2){

  You should have received a copy of the GNU Affero General Public License

  along with DistRen.  If not, see <http://www.gnu.org/licenses/>.

*/

 /*

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

  * distrenslave -c username email@example.com

 */

#include "asprintf.h"

#include "slavefuncs.h"

#include "execio.h"

#include <curl/curl.h>

#include <curl/types.h>

#include <curl/easy.h>

#include <stdio.h>

#include <string.h>

#include <unistd.h>

#include <stdlib.h>

#include <sys/stat.h>

#include <fcntl.h>

  fprintf(stderr,"Wrote conf file...\n");

return 1; // Success

}

/* Executors */

/*

  It seems that the client will need to know the job number. fixme.

*/

/** Executor function for Blender operations */

{

  int ret;

  char *frame_str;

  /* start execio code */

  char *command = "blender"; // @TODO: append .exe if win32?

  // @TODO: Put in code for output resolution, maybe... mayyyyyyybe....

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

  char buf[10];

  struct execio *testrem;

  size_t readlen;

  DistRen is distributed in the hope that it will be useful,

  but WITHOUT ANY WARRANTY; without even the implied warranty of

  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  GNU Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License

  along with DistRen.  If not, see <http://www.gnu.org/licenses/>.

*/

#ifndef _DISTREN_SLAVEFUNCS_H

#define _DISTREN_SLAVEFUNCS_H

#include <libxml/xpath.h>

#include <stdio.h>

xmlNodePtr xml_quickxpath(xmlXPathContextPtr xpathctxt, xmlChar *path);

void tell_the_server(char *stuff);

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 ssh_keygen();

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

int login_user(char *username);

int conf_replace(char *username);

void xmlinit();

void xmlcleanup();

#endif