ddsSyncWithForm does not sync lib/cell/view to GUI when executing via IPC channel

Hi,

I have a function to pop up a GUI for user to select the lib, cell and view.

In the GUI there is a 'Browse' button that will run 'ddsSyncWithForm' and pop up the Library Browser for user to select.

I expect that when the user select something on Library Browser, 'ddsSyncWithForm' will sync the selection back to my GUI.

But it seems if the command to pop up the GUI dialog comes from the IPC channel, the sync behavior does not work.

The SKILL codes I tested is as following:

My_browse() is the function to pop up my customized GUI with 'Browse' button. It works when calling from Virtuoso CIW directly.

My_browse_from_ipc() is the function to invoke an external process 'test_ipc.sh'. The 'test_ipc.sh' will send (My_browse) back to Virtuoso via IPC channel. In this situation the sync behavior does not work.

;;; test.il start

procedure(My_browse()
prog((promptFd libNameFd cellNameFd viewNameFd browseButtonFd dlg)
    promptFd = hiCreateLabel(
        ?name 'promptFd
        ?labelText "Open layout cell INV_0"
    )
    libNameFd = hiCreateStringField(
        ?prompt "Library Name:"
        ?name 'libNameFd
        ?editable t
    )
    cellNameFd = hiCreateStringField(
        ?prompt "Cell Name:"
        ?name 'cellNameFd
        ?defValue "INV_0"
        ?editable t
    )
    viewNameFd = hiCreateStringField(
        ?prompt "View Name:"
        ?name 'viewNameFd
        ?defValue "layout"
        ?editable t
    )
    browseButtonFd = hiCreateButtonBoxField(
        ?name 'browseButtonFd
        ?prompt " "
        ?choices '(" Browse ")
        ?callback list("ddsSyncWithForm(hiGetCurrentForm() 'browse 'libNameFd 'cellNameFd 'viewNameFd)")
    )

    dlg = hiCreateAppForm(
        ?name 'My_dlg
        ?formTitle sprintf(nil "Specify %s cell" "layout")
        ?fields list(promptFd libNameFd cellNameFd viewNameFd browseButtonFd)
        ?callback "My_cb(hiGetCurrentForm())"
        ?unmapAfterCB t
        ?dialogStyle 'modal
        ?buttonLayout 'OKCancel
    )
    hiDisplayForm(dlg)
))

procedure(My_cb(theForm)
    hiSetCallbackStatus(theForm t)
    ddsEndSyncWithForm()
    t
)

My_test_pid = nil
procedure(My_test_input_handler(pid data)
    printf("(pid: %d) - '%s'" pid data)
)
procedure(My_test_error_handler(pid data)
    printf("(pid: %d) - '%s'" pid data)
)
procedure(My_test_stop_handler(pid status)
    printf("(pid: %d) - stopped" pid)
)
procedure(My_browse_from_ipc()
    My_test_pid = ipcSkillProcess(
        "./test_ipc.sh"
        ""
        "My_test_input_handler"
        "My_test_error_handler"
        "My_test_stop_handler"
        ""
        4
        5
    )
    ipcWaitForProcess(My_test_pid)
)

;;; test.il end

## test_ipc.sh start

#!/bin/bash

echo '(My_browse)' >&4

sleep 20

exit 0

## test_ipc.sh end

Does anyone try this before?

If so could you help to point me if anything is wrong.

Thanks,

Wei