DistRen Changeset - e22839d03ac9 · protofusion repositories

Changeset - e22839d03ac9

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Nathan Brink (binki) - 15 years ago 2010-07-02 12:13:57
ohnobinki@ohnopublishing.net

Add DISTREN_REQUEST_PING handler to distrend and fix one of many memory leaks.

2 files changed with 21 insertions and 0 deletions:

src/server/distrend.c

src/server/listen.c

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src/server/distrend.c

➞

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@@ @@ -44,277 +44,297 @@ @@
 #include <libxml/parser.h>
 #include <libxml/tree.h>
 #include <libxml/xmlmemory.h>
 #include <libxml/xmlreader.h>
 #include <libxml/xmlwriter.h>
 /* ******************* Structs ************************ */
 struct general_info
+{
   struct distrenjob head;
   distrend_mysql_conn_t conn;
   struct distrend_config *config;
   struct
+  {
     /** general_info.xml */
     char *geninfo;
   } files;
   int jobs_in_queue;
   unsigned int free_clients;
   unsigned int rendering_clients;
   unsigned int total_finished_jobs;
   unsigned int total_frames_rendered;
   unsigned int highest_jobnum;
   int hibernate;
   time_t timestamp;
   unsigned long total_render_power;
   unsigned long total_priority_pieces;
 };
 /* *********************************************
    Function Prototypes
    ********************************************* */
 /* ************General Functions************* */
 int distrend_do();
 int distrend_do_config(int argc, char *argv[], struct distrend_config **config);
 int distrend_config_free(struct distrend_config *config);
 int distrend_handle_request(struct distrend_listens *listens, struct distrend_client *client, struct distren_request *req, void *reqdata, struct general_info *geninfo);
 /**
    client request handlers
  */
 int distrend_handle_version(struct general_info *geninfo, struct distrend_client *client, size_t req_len, void *req_data);
 int distrend_handle_ping(struct general_info *geninfo, struct distrend_client *client, size_t req_len, void *req_data);
 /* **************XML Functions**************** */
 void update_general_info(struct general_info *geninfo);
 int import_general_info(struct general_info *general_info);
 int update_xml_joblist(struct general_info *geninfo);
 /* **************Test Functions**************** */
 int interactiveTest(int test, struct general_info *general_info);
 /* **************** Main ********************* */
 int main(int argc, char *argv[])
+{
   /* Parse arguments */
   int counter;
   int test = 0; /*< Interactive mode if 1 */
   int tmp;
   struct general_info general_info;
   enum clientstatus
+  {
     CLIENTSTATUS_UNINITIALIZED = 0,
     CLIENTSTATUS_BUSY = 1,
     CLIENTSTATUS_IDLE = 2
   } clientstatus;
   clientstatus = CLIENTSTATUS_UNINITIALIZED;
   // xmlinit();
   for(counter = 0; counter < argc; counter ++)
+    {
       if(strcmp(argv[counter], "-h") == 0)
+      {
     	  fprintf(stderr, "Usage: distrend [option] \nStarts the distrend server\n\t-h\tshow this help\n\t-t\tlaunches queue testing interface \n");
 	  return 2;
+      }
       else if(strcmp(argv[counter], "-t") == 0)
+      {
     	  fprintf(stderr, "Entering into test mode...\n\n");
     	  test = 1;
+      }
+    }
   if(distrend_do_config(argc, argv, &general_info.config))
     return 1;
   /** preset paths */
   _distren_asprintf(&general_info.files.geninfo, "%s/general_info.xml",
 		    general_info.config->datadir);
   /** MySQL Connection */
   fprintf(stderr,"Connecting to mysql...\n");
   if(mysqlConnect(&general_info.conn,
 		  general_info.config->mysql_user,
 		  general_info.config->mysql_host,
 		  general_info.config->mysql_pass,
 		  general_info.config->mysql_database) )
+    {
       fprintf(stderr, "%s:%d: mysqlConnect() failed\n", __FILE__, __LINE__);
       fprintf(stderr, "don't test mysql stuff\n");
       interactiveTest(test, &general_info);
       return 1;
+    }
   fprintf(stderr,"Finished connecting!\n");
   /** Execute test function */
   interactiveTest(test, &general_info);
   general_info.config->listens = distrend_listens_new(&general_info);
   if(!general_info.config->listens)
+    {
       fprintf(stderr, "error initializing listens\n");
       return 1;
+    }
   for(counter = 0; general_info.config->listen_ports[counter]; counter ++)
+    {
       tmp = distrend_listen_add(general_info.config->listens, general_info.config->listen_ports[counter]);
       if(tmp)
+	{
 	  fprintf(stderr, "Error listening on port %d\n", general_info.config->listen_ports[counter]);
 	  return 1;
+	}
+    }
   distrend_listen_handler_add(general_info.config->listens, DISTREN_REQUEST_VERSION, &distrend_handle_version);
   distrend_listen_handler_add(general_info.config->listens, DISTREN_REQUEST_PING, &distrend_handle_ping);
   int slaveKey = 0; // Remotio should set me on a per-slave basis
   /* Main Loop */
   general_info.config->die = 0;
   while(!general_info.config->die)
+    {
       int clientrequest = 0; /*< temporary example variable, will be replaced when we can handle messages */
       distrend_accept(general_info.config->listens);
       /* Run the watchdog, @TODO: like every 10 mins or something */
       frame_watchdog(general_info.conn);
       struct frameset frame;
       struct distrenjob *job;
       distrenjob_new(&job);
       memset(&frame, '\0', sizeof(frame));
       /** If client requests work */
       if(clientrequest == DISTREN_REQUEST_GETWORK)
+	{
 	  int returnnum = find_jobframe(general_info.conn, slaveKey, &job->jobnum, &frame.num); // Finds a frame to render @FIXME: Slavenum :D
 	  if(returnnum); /* No work on server */
 	  else
 	    remotio_send_to_client(frame.num, job->jobnum); // Pseudo-sends data to client
+	}
       /* If the client states that they finished the frame */
       else if(clientrequest == DISTREN_REQUEST_DONEFRAME)
+	{
 	  clientstatus = CLIENTSTATUS_IDLE; // Sets the client back to idle
 	  finish_frame(general_info.conn, 0, job->jobnum, frame.num); // @TODO: Make sure this actually works.
+	}
       distrenjob_free(&job);
+    }
   distrend_listen_free(general_info.config->listens);
   distrend_config_free(general_info.config);
   xmlcleanup();
   /** free() paths */
   free(general_info.files.geninfo);
   mysqlDisconnect(general_info.conn);
   return 0;
+}
 /* ********************** Functions ************************* */
 int distrend_handle_version(struct general_info *geninfo, struct distrend_client *client, size_t req_len, void *req_data)
+{
   char *tmp_str;
   char fixedbuf[32];
   struct distren_request *newreq;
   if(client->state != DISTREND_CLIENT_PREVERSION)
+    {
       distrend_send_disconnect(geninfo->config->listens, client, "You have already sent the VERSION command.");
+    }
   if(strlen(PACKAGE_STRING) == req_len
      && !strncmp(PACKAGE_STRING, req_data, req_len))
+    {
       /**
 	 The client and I claim to be of the same version of distren :-D
 	 Now we will mark the client as valid.
 	 We won't increment his time to live, though, because it shouldn't take
 	 him that long to auth.
       */
       client->state = DISTREND_CLIENT_PREAUTH;
       distren_request_new(&newreq, strlen(PACKAGE_STRING), DISTREN_REQUEST_VERSION);
       distrend_client_write_request(geninfo->config->listens, client, newreq, PACKAGE_STRING);
       distren_request_free(newreq);
+    }
   else
+    {
       /**
 	 The client claims to be of a different version of distren.
 	 Now we will just send a disconnect packet and disconnect the client.
       */
       strncpy(fixedbuf, req_data, 31);
       fixedbuf[31] = '\0';
       if(req_len < 31)
 	fixedbuf[req_len] = '\0';
       _distren_asprintf(&tmp_str, "You have tried to connect to a %s server when your client claims to be running %s. Bye ;-)\n", PACKAGE_STRING, fixedbuf);
       distrend_send_disconnect(geninfo->config->listens, client, tmp_str);
+    }
   return 0;
+}
 int distrend_handle_ping(struct general_info *geninfo, struct distrend_client *client, size_t req_len, void *req_data)
+{
   struct distren_request *pong_req;
   if(req_len > 32)
     distrend_send_disconnect(geninfo->config->listens, client, "You have tried to send a PING packet with a length longer than 32 bytes.");
   /**
       respond to the client using the data he sent in his PONG
       command.
    */
   distren_request_new(&pong_req, req_len, DISTREN_REQUEST_PONG);
   distrend_client_write_request(geninfo->config->listens, client, pong_req, req_data);
   distren_request_free(pong_req);
   return 0;
+}
 /**
    Performs command stored in a client's request. @TODO: Fill stub
 */
 int distrend_do()
+{
   return 0;
+}
 /* Grabs config info from confs */
 int distrend_do_config(int argc, char *argv[], struct distrend_config **config)
+{
   unsigned int counter;
   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_SIMPLE_STR("datadir", NULL),
       CFG_STR_LIST("render_types", NULL, CFGF_NONE),
       CFG_SIMPLE_STR("mysql_user", NULL),
       CFG_SIMPLE_STR("mysql_host", NULL),
       CFG_SIMPLE_STR("mysql_pass", NULL),
       CFG_SIMPLE_STR("mysql_database", NULL),
       CFG_END()
     };
   cfg_t *cfg_listen;
   fprintf(stderr, "%s:%d: running config\n", __FILE__, __LINE__);
   *config = malloc(sizeof(struct distrend_config));
   myopts[1].simple_value = &(*config)->datadir;
   myopts[3].simple_value = &(*config)->mysql_user;
   myopts[4].simple_value = &(*config)->mysql_host;
   myopts[5].simple_value = &(*config)->mysql_pass;
   myopts[6].simple_value = &(*config)->mysql_database;
   if(options_init(argc, argv, &(*config)->mycfg, myopts, "daemon", &(*config)->options))
     return 1;
   /**

src/server/listen.c

➞

Show inline comments

@@ @@ -239,96 +239,97 @@ int distrend_handleread(struct distrend_ @@
 	      client->state = DISTREND_CLIENT_DEAD;
 	      return 1;
+	    }
 	  client->expectlen = req->len + sizeof(struct distren_request);
 	  distren_request_free(req);
+	}
+    }
   if(client->expectlen
      && client->inlen >= client->expectlen)
+    {
       /** essentially un-queue-ize the queue ;-) */
       distrend_packets_collapse(client->inmsgs, client->inlen);
       packet = q_front(client->inmsgs);
       if(distren_request_new_fromdata(&req, packet->data, packet->len))
+	{
 	  fprintf(stderr, "error handling data from client\n");
 	  client->state = DISTREND_CLIENT_DEAD;
 	  return 1;
+	}
       if(packet->len - sizeof(struct distren_request) < req->len)
+	{
 	  fprintf(stderr, "error handling some data from client\n");
 	  distren_request_free(req);
 	  client->state = DISTREND_CLIENT_DEAD;
 	  return 1;
+	}
       reqdata = malloc(req->len);
       if(!reqdata)
+	{
 	  fprintf(stderr, "OOM\n");
 	  distren_request_free(req);
 	  return 1;
+	}
       memcpy(reqdata, ((void *)packet->data) + sizeof(struct distren_request), req->len);
       memmove(packet->data,
 	      ((void *)packet->data) + client->expectlen,
 	      packet->len - client->expectlen);
       packet->len -= client->expectlen;
       client->inlen -= client->expectlen;
       client->expectlen = 0;
       distrend_dispatch_request(listens, client, req, reqdata);
       free(reqdata);
       distren_request_free(req);
+    }
   return 0;
+}
 struct distrend_accept_client_proc_data
+{
   struct distrend_listens *listens;
   time_t current_time;
 };
 int distrend_accept_client_proc(struct distrend_accept_client_proc_data *data,
 				struct distrend_client *client)
+{
   struct distrend_packet *packet;
   ssize_t written_amount;
   short revents;
   if(client->state == DISTREND_CLIENT_DEAD)
     return TRUE;
   /**
      Manage timing-out clients.
    */
   if(data->current_time > client->cleanup_time)
     switch(client->state)
+      {
       case DISTREND_CLIENT_PREVERSION:
 	distrend_send_disconnect(data->listens, client, "You have failed to present version information in a timely manner. Cya :-p");
 	break;
       case DISTREND_CLIENT_PREAUTH:
 	distrend_send_disconnect(data->listens, client, "You have failed to present authentication information in a timely manner. Cya ;-)");
 	break;
       case DISTREND_CLIENT_GOOD:
 	distrend_send_disconnect(data->listens, client, "Ping timeout :-p");
 	break;
       case DISTREND_CLIENT_BAD:
 	client->state = DISTREND_CLIENT_DEAD;
 	return TRUE;
       default:
 	break;
+      }
   revents = data->listens->pollfds[client->sock.pollfd_offset].revents;
   if(revents & POLLRDNORM)
     /* handle reading */

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