Intel® Fortran Compiler Classic and Intel® Fortran Compiler Developer Guide and Reference

ID 767251
Date 3/22/2024
Public

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IPXFWEXITSTATUS

POSIX Function: Returns the exit code of a child process. This routine is only available for Linux.

Module

USE IFPOSIX

result = IPXFWEXITSTATUS (istat)

istat

(Input) INTEGER(4). The value of output argument istat from PXFWAIT or PXFWAITPID.

Results

The result type is INTEGER(4). The result is the low-order eight bits of the output argument of PXFWAIT or PXFWAITPID.

The IPXFWEXITSTATUS function should only be used if PXFWIFEXITED returns TRUE.

Example

program t1
use ifposix
integer(4) ipid, istat, ierror, ipid_ret, istat_ret
  print *," the child process will be born"
  call PXFFORK(IPID, IERROR)
  call PXFGETPID(IPID_RET,IERROR)
  if(IPID.EQ.0) then
     print *," I am a child process"
     print *," My child's pid is", IPID_RET
     call PXFGETPPID(IPID_RET,IERROR)
     print *," The pid of my parent is",IPID_RET
     print *," Now I have exited with code 0xABCD"
     call PXFEXIT(Z'ABCD')
  else
     print *," I am a parent process"
     print *," My parent pid is ", IPID_RET
     print *," I am creating the process with pid", IPID
     print *," Now I am waiting for the end of the child process"
     call PXFWAIT(ISTAT, IPID_RET, IERROR)
     print *," The child with pid ", IPID_RET," has exited"
     if( PXFWIFEXITED(ISTAT) ) then
       print *, " The child exited normally"
       istat_ret = IPXFWEXITSTATUS(ISTAT)
       print 10," The low byte of the child exit code is", istat_ret
     end if
  end if
10 FORMAT (A,Z)
end program