Re: Determining a 'process id'

["Simon Coulter" <shc@xxxxxxxxxxxxxxxxx>]

Hello Rob,

You wrote:
>I had a coworker here working on an iSeries PASE based Tivoli solution. 
>She asked me a question.  She has to issue a 'kill' command to stop a 
>'process id'.  She knows that it is a particular job, like 
>number/user/jobname, however ENDJOB is not the appropriate command.  Is 
>there a way to determine the process id?

There are various Unix shell ways to do this but if you would rather not 
suffer the ugliness of the shell here are some native code examples that 
will do what you want.  The CPPs are in C because that was convenient -- 
you can translate to RPG IV easily enough.

SHWJOBPID:  CMD        PROMPT('Show PID for Job')

            PARM       KWD(JOB) TYPE(Q1) DFT(*) SNGVAL((*)) +
                         PROMPT('Job name')

Q1:         QUAL       TYPE(*NAME) LEN(10) MIN(1) EXPR(*YES)
            QUAL       TYPE(*NAME) LEN(10) MIN(1) EXPR(*YES) +
                         PROMPT('User')
            QUAL       TYPE(*CHAR) LEN(6) RANGE(000001 999999) +
                         MIN(1) FULL(*YES) EXPR(*YES) PROMPT('Number')

#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <qusrjobi.h>

#define BLANKS "                "

int main (int argc, char * argv[] )
{
   struct { char name[10];
            char user[10];
            char number[6];
          } job;
   Qwc_JOBI0800_t jobInfo;
   int i = 0;

   memcpy( &job, argv[1], sizeof(job) );                            

   QUSRJOBI( &jobInfo, sizeof(jobInfo), "JOBI0800", &job, BLANKS ); 

   for ( i=0; i<sizeof(job); i++ )
     if ( job.name[i] == ' ') job.name[i] = '\0';
   printf("PID for job %.6s/%.10s/%.10s is %d\n", job.number,
                                                  job.user,
                                                  job.name,
                                             jobInfo.Process_ID_Number );

   return;
}

SHWPIDJOB:  CMD        PROMPT('Show Job for PID')

            PARM       KWD(PID) TYPE(*INT4) PROMPT('Process +
                         identifier')

#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <Qp0wpid.h>

int main (int argc, char * argv[] )
{
   pid_t pid = *(int*)argv[1];
   QP0W_Job_ID_T jobInfo;
   int rc = 0;
   int i = 0;

   if ( (rc = Qp0wGetJobID( pid, &jobInfo )) == 0 )
   {
      for ( i=0; i<26; i++ )
        if ( jobInfo.jobname[i] == ' ') jobInfo.jobname[i] = '\0';
      printf("Process ID %d is job %.6s/%.10s/%.10s\n", pid,
                                                      jobInfo.jobnumber, 
                                                      jobInfo.username,  
                                                      jobInfo.jobname ); 
   }
   else
    printf("SHWPIDJOB: %s\n", strerror(rc) );

   return;
}

Regards,
Simon Coulter.
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