SXPG_COMMAND_EXECUTE

[Former Member]

Hi, fellow.

I met a problem.

I want to use a RFC function named "SXPG_COMMAND_EXECUTE".

I just don't understand WHY a totally same function "SXPG_COMMAND_EXECUTE" appears in codes of function "SXPG_COMMAND_EXECUTE".

============

IF NOT APPSERV_DESTINATION IS INITIAL.

CALL FUNCTION 'SXPG_COMMAND_EXECUTE'

DESTINATION APPSERV_DESTINATION

...........

============

Does "SXPG_COMMAND_EXECUTE" need to call itself ???

Is't commanded by implement of a RFC function ???

Any help is appreciated.

Thanks.

[Former Member]

This seems to be recursion where function being defined may be used within its own definition.

A simple example for it to explain is :

function factorial(n)

{

if (n <= 1)

return 1;

else

return n * factorial(n-1);

}

The function calls itself recursively on a smaller version of the input (n - 1) and multiplies the result of the recursive call by n, until reaching the base case, analogously to the mathematical definition of factorial.

procedure ProcessTree(node)

{

ProcessNode(node); // perform specific operation with the given node first

foreach child_node of node do ProcessTree(child_node);

}

RFC is basically a remotely called Function module which may or may not use recursion.

Hope this helps!

Cheers!

[Former Member]

Hi,

I found some documentation in the same FM.

• First, for platforms without remote shell try to get to the

• target host by an internal rfc. If an application server

• runs on the target host so does a gateway which then starts

• SAPXPG by some kind of FORK mechanism rather than by remote

• shell. (This is only tried if there is no explicit

• rfc destination given by the optional parameter destination.)

Regards,

SCK

[Former Member]

Sannamane,

I must say the comments you found seems to describe another issue.

In that function, two conditions are considered.

Only when rfc destination is empty, what you mentioned occured.

and Jain,

I read your reply carefully.

Though I'm not sure you're right, I believe that should be a kind of thought towards right direction.

[Former Member]

v_dir_input = 'cmd /c c:\winzip\wzzip.exe -stestpass g:\IV.zip g:\test.pdf'.

DATA: t_result	TYPE STANDARD TABLE OF btcxpm.

DATA: v_dir_input

TYPE sxpgcolist-parameters.  " Input Directory

CALL FUNCTION 'SXPG_COMMAND_EXECUTE'

  EXPORTING

    commandname                   = c_extcom

    additional_parameters         = v_dir_input

    operatingsystem               = c_oper

  TABLES

    exec_protocol                 = t_result

  EXCEPTIONS

    no_permission                 = 1

    command_not_found             = 2

    parameters_too_long           = 3

    security_risk                 = 4

    wrong_check_call_interface    = 5

    program_start_error           = 6

    program_termination_error     = 7

    x_error                       = 8

    parameter_expected            = 9

    too_many_parameters           = 10

    illegal_command               = 11

    wrong_asynchronous_parameters = 12

    cant_enq_tbtco_entry          = 13

    jobcount_generation_error     = 14

    OTHERS                        = 15.