The Player Project

Hi
which version of player and stage are you using and what is your server side
setup (i.e. which drivers are you using). If code is segfaulting it is also
useful to post a gdb backtrace of the failing code.

Toby

On 15/02/2008, VIMAL MEHTA <vimal_744@...> wrote:
>
> HI
>
> I tried to transmit data using the opaque interface.
>
> I donot know why the o/p is a segmentation error always.
>
> Can anyone please take a look at the simple code below.
>
> Your valuable suggestions will be appreciated highly.
>
> Thanks
> VIMAL
>
> #include <libplayerc++/playerc++.h>
> #include <iostream>
>
> #include "args.h"
>
>
> #define PLAYER_OPAQUE_MAX_SIZE 10
>
> //inherits PlayerCc::ClientProxy.
>
> int main(int argc, char **argv)
> {
>   parse_args(argc,argv);
>
> int i=0;
>
>   // we throw exceptions on creation if we fail
>   try
>   {
>     using namespace PlayerCc;
>
>
>
>      PlayerClient camera1("localhost", 6665);
>      OpaqueProxy opq_1(&camera1, 0);
>      LogProxy lp_1(&camera1, 0);
>
>       PlayerClient target("localhost", 6666);
>      Position2dProxy pp(&target, 0);
>      LaserProxy lp(&target, 0);
>
>
>
>
>
>
> player_opaque_data_t opData;
>
> uint8_t opGetData[PLAYER_OPAQUE_MAX_SIZE];
>
>
>
>
> uint32_t i=0;
>
> std::cout <<"a"<< std::endl;
>
> for(;;)
> {
>
>
>
>
>
>     std::cout <<"a"<< std::endl;
>
>     opData.data_count = 5;
>     opData.data[0]  = 'a';
>     opData.data[1]  = 'b';
>     opData.data[2]  = 'c';
>     opData.data[3]  = 'd';
>     opData.data[4]  = 'e';
>
>     opq_1.SendCmd(&opData);
>
>     camera1.Read();
>     camera1.Read();
>
>     std::cout <<"b"<< std::endl;
>
>
>     uint count1 = opq_1.GetCount();
>     std::cout << "count1 = " << count1 << std::endl;
>     opq_1.GetData(opGetData);
>     std::cout <<"opGetData[0]="<<opGetData[0]<< std::endl;
>     std::cout <<"opGetData[1]="<<opGetData[1]<< std::endl;
>     std::cout <<"opGetData[2]="<<opGetData[2]<< std::endl;
>     std::cout <<"opGetData[3]="<<opGetData[3]<< std::endl;
>     std::cout <<"opGetData[4]="<<opGetData[4]<< std::endl;
>
>
>
>
>
>     }
>   }
>   catch (PlayerCc::PlayerError e)
>   {
>     std::cerr << e << std::endl;
>     return -1;
>   }
> }
>
> ------------------------------
> Forgot the famous last words? Access your message archive online. Click
> here.<http://in.rd.yahoo.com/tagline_webmessenger_4/*http://in.messenger.yahoo.com/webmessengerpromo.php>
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Playerstage-users mailing list
> Playerstage-users@...
> https://lists.sourceforge.net/lists/listinfo/playerstage-users
>
>


-- 
This email is intended for the addressee only and may contain privileged
and/or confidential information

HI I am using the following palyer 2.1.0rc1 and stage 2.1.0rc1

the cfg and world files are as follows

world file


# Desc: Stage demo with lots of models. Works with everything.cfg.
# CVS: $Id: everything.world,v 1.86 2007/03/26 19:54:36 gerkey Exp $

# the size of a pixel in Stage's underlying raytrace model in meters
resolution     0.02

interval_sim 100  # milliseconds per update step
interval_real 100 # real-time milliseconds per update step

# defines Pioneer-like robots
include "mypioneer.inc"
include "mypioneertarget.inc"
include "mycamera.inc"

include "roomba.inc"

# defines 'map' object used for floorplans
include "map.inc"

# defines the laser model `sick_laser' configured like a Sick LMS-200
include "sick.inc"

size [50 50 ]

gui_disable 0  
 
gui_interval 100
gui_menu_interval 20

window( 
  size [ 755.000 684.000 ] 
  #center [-7.707 2.553]
  #size [ 1680.000 1050.000 ] 
  center [8 7]  
 
  scale 0.025 
)

map( 
  bitmap "bitmaps/table.png" 
  map_resolution 0.02
  size [50 50] 
  name "cave"
)

pioneer2dx
(
  name "robot1"
  color "OrangeRed"
  size [0.5 0.5]
  pose [4 4 0]
sick_laser(color "OrangeRed")
)

pioneer2dx
(
  name "robot2"
  color "OrangeRed"
  size [0.5 0.5]
  pose [4 4 0]
sick_laser(color "OrangeRed")
)


..cfg file

# Desc: Player sample configuration file for controlling Stage devices
# Date: 18 Apr 2003
# CVS: $Id: everything.cfg,v 1.34 2007/03/26 19:54:36 gerkey Exp $


# load the Stage plugin simulation driver
driver
(        
  name "stage"
  provides ["simulation:0" ]
  plugin "libstageplugin"

  # load the named file into the simulator
  worldfile "opaquetest2.world"    
)

# Export the map
driver
(        
  name "stage"
  provides ["map:0"]
  model "cave"
)

# Create a Stage driver and attach position2d and laser interfaces 
# to the model "robot1"
driver
( 
  name "stage"
  provides ["6665:position2d:0" "6665:laser:0"]
  requires ["6665:opaque:0"]
  model "robot1" 
)

driver
( 
  name "stage"
  provides ["6666:position2d:0" "6666:laser:0"]
  requires ["6666:opaque:0"]
  model "robot2" 
)

driver
( 
  name "relay"
  provides ["6665:opaque:0"]
  
)



driver
( 
  name "relay"
  provides ["6666:opaque:0"]
  
)



# Demonstrates use of a Player "abstract driver": one that doesn't
# interface directly with hardware, but only with other Player devices.
# The VFH driver attempts to drive to commanded positions without 
# bumping into obstacles.
driver 
(
  name "vfh"
  provides ["6665:position2d:1" "6666:position2d:1"]
  requires ["6665:position2d:0" "6665:laser:0" "6666:position2d:0" "6666:laser:0"]
)

***************************
..cc file
***************************
#include <libplayerc++/playerc++.h>
#include <libplayerc/playerc.h> 
#include <iostream>

#include "args.h"


#define PLAYER_OPAQUE_MAX_SIZE 10

//inherits PlayerCc::ClientProxy.

int main(int argc, char **argv)
{
  parse_args(argc,argv);

int i=0;

  // we throw exceptions on creation if we fail
  try
  {
    using namespace PlayerCc;



     PlayerClient robot1("localhost", 6665);
     Position2dProxy pp1(&robot1, 0);
     LaserProxy lp1(&robot1, 0);
     OpaqueProxy opq_1(&robot1,0);

     
      PlayerClient robot2("localhost", 6666);
     Position2dProxy pp2(&robot2, 0);
     LaserProxy lp2(&robot2, 0);
     OpaqueProxy opq_2(&robot2,0);



player_opaque_data_t opData;

uint8_t opGetData[1024];


    
         std::cout << robot1 << std::endl;
        std::cout << robot2 << std::endl;
          pp1.SetMotorEnable (true);
        pp2.SetMotorEnable (true);
        for(i = 1; i<= 5 ; i++)
    {
    robot1.Read();
    robot1.Read();
    }

    for(;;)
    {

        opData.data_count = 5;
        opData.data[0]  = 'a';
        opData.data[1]  = 'b';
        opData.data[2]  = 'c';
        opData.data[3]  = 'd';
        opData.data[4]  = 'e';

        opq_1.SendCmd(&opData);

        robot1.Read();




        uint count1 = opq_1.GetCount();
        std::cout << "count1 = " << count1 << std::endl;
        opq_1.GetData(opGetData);
        std::cout <<"opGetData[0]="<<opGetData[0]<< std::endl;
        std::cout <<"opGetData[1]="<<opGetData[1]<< std::endl;
        std::cout <<"opGetData[2]="<<opGetData[2]<< std::endl;
        std::cout <<"opGetData[3]="<<opGetData[3]<< std::endl;
        std::cout <<"opGetData[4]="<<opGetData[4]<< std::endl;


        if (opGetData[0] == 'a')
        {

        opData.data_count = 3;
        opData.data[0]  = 'D';
        opData.data[1]  = 'E';
        opData.data[2]  = 'F';

        opq_2.SendCmd(&opData);

        robot2.Read(); 
        opq_2.GetData(opGetData);

        std::cout <<"opGetData[0]="<<opGetData[0]<< std::endl;
        std::cout <<"opGetData[1]="<<opGetData[1]<< std::endl;
        std::cout <<"opGetData[2]="<<opGetData[2]<< std::endl;
        }
    }    
  }
  catch (PlayerCc::PlayerError e)
  {
    std::cerr << e << std::endl;
    return -1;
  }
}


Toby Collett <tcollett+player@...> wrote: Hi
which version of player and stage are you using and what is your server side setup (i.e. which drivers are you using). If code is segfaulting it is also useful to post a gdb backtrace of the failing code.

Toby
 
On 15/02/2008, VIMAL MEHTA <vimal_744@...> wrote: HI

I tried to transmit data using the opaque interface.

I donot know why the o/p is a segmentation error always.

Can anyone please take a look at the simple code below.

Your valuable suggestions will be appreciated highly.
 
Thanks
VIMAL

#include <libplayerc++/playerc++.h>
#include <iostream>

#include "args.h"


#define PLAYER_OPAQUE_MAX_SIZE 10

//inherits PlayerCc::ClientProxy.
 
int main(int argc, char **argv)
{
  parse_args(argc,argv);

int i=0;

  // we throw exceptions on creation if we fail
  try
  {
    using namespace PlayerCc;



     PlayerClient camera1("localhost", 6665);
      OpaqueProxy opq_1(&camera1, 0);
     LogProxy lp_1(&camera1, 0);
     
      PlayerClient target("localhost", 6666);
      Position2dProxy pp(&target, 0);
     LaserProxy lp(&target, 0);






player_opaque_data_t opData;

uint8_t opGetData[PLAYER_OPAQUE_MAX_SIZE];


    

uint32_t i=0;    
 
std::cout <<"a"<< std::endl;
    
for(;;)
{

      
      
         

    std::cout <<"a"<< std::endl;

    opData.data_count = 5;
    opData.data[0]  = 'a';
     opData.data[1]  = 'b';
    opData.data[2]  = 'c';
    opData.data[3]  = 'd';
    opData.data[4]  = 'e';

    opq_1.SendCmd(&opData);

    camera1.Read();
     camera1.Read();

    std::cout <<"b"<< std::endl;


    uint count1 = opq_1.GetCount();
    std::cout << "count1 = " << count1 << std::endl;
    opq_1.GetData(opGetData);
     std::cout <<"opGetData[0]="<<opGetData[0]<< std::endl;
    std::cout <<"opGetData[1]="<<opGetData[1]<< std::endl;
    std::cout <<"opGetData[2]="<<opGetData[2]<< std::endl;
     std::cout <<"opGetData[3]="<<opGetData[3]<< std::endl;
    std::cout <<"opGetData[4]="<<opGetData[4]<< std::endl;




  
    }
  }
  catch (PlayerCc::PlayerError e)
   {
    std::cerr << e << std::endl;
    return -1;
   }
}          

---------------------------------
 Forgot the famous last words? Access your message archive online. Click here. 

-------------------------------------------------------------------------
 This SF.net email is sponsored by: Microsoft
 Defy all challenges. Microsoft(R) Visual Studio 2008.
 http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
  Playerstage-users mailing list
 Playerstage-users@...
 https://lists.sourceforge.net/lists/listinfo/playerstage-users
 




-- 
This email is intended for the addressee only and may contain privileged and/or confidential information -------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/_______________________________________________
Playerstage-users mailing list
Playerstage-users@...
https://lists.sourceforge.net/lists/listinfo/playerstage-users


       
---------------------------------
 Unlimited freedom, unlimited storage. Get it now

is it the server or the client segfaulting?
If its the client how far does it get before it segfaults?
It is worth trying player CVS HEAD (keep using stage rc1) as their have been
a number of bugs fixed already relating to memory allocation etc.
also run the app that is dying in gdb and send the backtrace when it
segfaults...

Toby

Hi Mr Collett

It is the server side that is segfaulting

Sorry but I am a newbe to this GDB debugging  and it would be very nice of you if you could explain me the other 3 steps that you instructed in detail.

Thanks
Vimal

Toby Collett <tcollett+player@...> wrote: is it the server or the client segfaulting?
If its the client how far does it get before it segfaults?
It is worth trying player CVS HEAD (keep using stage rc1) as their have been a number of bugs fixed already relating to memory allocation etc.
 also run the app that is dying in gdb and send the backtrace when it segfaults...

Toby
 -------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/_______________________________________________
Playerstage-users mailing list
Playerstage-users@...
https://lists.sourceforge.net/lists/listinfo/playerstage-users


       
---------------------------------
 5, 50, 500, 5000 - Store N number of mails in your inbox. Click here.

to run gbd execute something along the lines of the following:
gdb player
run <config file>
when the segfault occurs type bt and then post the results.

to try out the CVS version follow the instructions on the player stage
website.

Toby


On 15/02/2008, VIMAL MEHTA <vimal_744@...> wrote:
>
> Hi Mr Collett
>
> It is the server side that is segfaulting
>
> Sorry but I am a newbe to this GDB debugging  and it would be very nice of
> you if you could explain me the other 3 steps that you instructed in detail.
>
> Thanks
> Vimal
>
> *Toby Collett <tcollett+player@...>* wrote:
>
> is it the server or the client segfaulting?
> If its the client how far does it get before it segfaults?
> It is worth trying player CVS HEAD (keep using stage rc1) as their have
> been a number of bugs fixed already relating to memory allocation etc.
> also run the app that is dying in gdb and send the backtrace when it
> segfaults...
>
> Toby
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
>
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/_______________________________________________
> Playerstage-users mailing list
> Playerstage-users@...
> https://lists.sourceforge.net/lists/listinfo/playerstage-users
>
>
> ------------------------------
> 5, 50, 500, 5000 - Store N number of mails in your inbox. Click here.<http://in.rd.yahoo.com/tagline_mail_4/*http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/>
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2008.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Playerstage-users mailing list
> Playerstage-users@...
> https://lists.sourceforge.net/lists/listinfo/playerstage-users
>
>


-- 
This email is intended for the addressee only and may contain privileged
and/or confidential information