TACL Reference Manual

Built-In Functions and Variables
HP NonStop TACL Reference Manual—429513-018
9-205
#INLINEPROCESS Built-In Variable
#INLINEPROCESS Built-In Variable
Use #INLINEPROCESS to obtain the process ID of the current inline process.
Result
#INLINEPROCESS returns the process ID of the current inline process, if one exists; if
not, #INLINEPROCESS returns nothing.
Considerations
•
Use #PUSH #INLINEPROCESS (or PUSH #INLINEPROCESS) to save the
process ID of the current inline process. Pushing #INLINEPROCESS allows you to
create a new inline process while another is still in existence. You cannot
communicate with an inline process while it is pushed.
•
Pushing and popping #INLINEPROCESS can help you avoid errors or timing
problems (race conditions) if you stop an inline process and start another in quick
succession. The first process may not stop as soon as you issue an EXIT
command. If you push #INLINEPROCESS before starting the first process, then
pop #INLINEPROCESS after issuing the EXIT command, TACL disassociates
itself from that process without waiting for it to complete. You can then push
#INLINEPROCESS again and start another process immediately.
•
You cannot set #INLINEPROCESS. It is set implicitly by the creation and
termination of inline processes.
•
Use #POP #INLINEPROCESS (or POP #INLINEPROCESS) to break
communication with the current inline process (if any) and reestablish
communication with the inline process (if any) that was in effect when
#INLINEPROCESS was last pushed.
•
When terminating communication with an inline process, TACL waits until the
process prompts for input, then sends an EOF indication to that process.
•
Use of #INLINEEOF when no inline process exists results in an error. You can
determine if there is a current INLINE process by testing as shown:
[#IF [#EMPTY [#INLINEPROCESS]] |THEN|
== does not exist
|ELSE|
== does exist
]
When you push #INLINEPROCESS, you can create another inline process only if your
total number of #REQUESTERs, implicit and explicit #SERVERs, and inline processes
is less than 100.
#INLINEPROCESS