Set UNIX environment variable through in Cadence environment through skill

The first approach wouldn't work for two reasons. First of all "setenv" is a "csh" command, not a "sh" command. Anyway, even if that had worked or you'd use an appropriate command ("export VAR=value", say), then this would not have helped because it environment variables are only inherited in child processes, not in the parent process. What you want to use is setShellEnvVar("VAR=value").

The documentation explains how to write xstOutOnCompletion - and even gives an example. You don't wait for it to return - instead, you have a callback that is triggered when it completes and this callback receives the status information. You can then do any subsequent actions  you need from within your xstOutOnCompletion definition.

Regards,

Andrew.

If you're checking in the UNIX terminal that you launched Virtuoso from, then you wouldn't see it - because environment variables are not passed back to the parent. If in virtuoso you did:

system("xterm &")

then in the resulting terminal that appears, you should see the value you set using SKILL - because this is then a child of the virtuoso process and inherits its environment

That's how UNIX environment variables work!

Regards,

Andrew

No. There may be other ways of opening a window which shows the output of a sequence of commands - via ipcBeginProcess somehow, but not doing exactly this. I don't really understand what you're hoping to do as it sounds a bit peculiar.

Andrew.

Andrew,

1)The scenario is after gds export , I want to fire drc,lvs parallely. In current scenario, the terminal on which  i launched virtuoso, will be used anyone by drc or lvs. Correct me if i am wrong.

2)One more question related to streamin,

virtuoso running in replay mode.After stream in the gds by creating new library in skill code,  i am exiting virtuoso with exit command(exit()) in my script file. A pop up window of "save all" is coming which blocks further execution and needs user intervention. Could you please help me out how to save and proceed to next line without user intervention.

Thanks,

Harsha

Harsha,

For the first question, I don't know what you mean. You can run DRC and LVS in parallel, but I don't see what this has to do with the terminal you launched virtuoso from or how that relates to wanting to run commands in a terminal that you've launched. 

For the second one, you could solve that by running some code which finds all things that needs saving and saves them. I'm not sure why you'd have unsaved items after a stream in, but perhaps you're doing some other manipulation in your code. If you are, you should remember to do dbSave() on each cellView when you've done.

You could do something like this:

(foreach cv (abGetModifiedCellViews) (dbSave cv))

where abGetModifiedCellViews is this:

/***************************************************************
*                                                              *
*                   (abGetModifiedCellViews)                   *
*                                                              *
*               Find all the modified cell views               *
*                                                              *
*    Note that this uses a couple of db calls which aren't     *
*                        in the manual                         *
*                                                              *
***************************************************************/

(procedure (abGetModifiedCellViews)
  (let (cellViews)
       (foreach cellView (dbGetOpenCellViews)
                (when (and
                       (dbIsCellViewModified cellView) 
                       /* cell can appear modified, even if read only (why?) */
                       (or 
                        (equal (dbGetq cellView mode) "a")
                        (equal (dbGetq cellView mode) "w")))
                      (setq cellViews (cons cellView cellViews))))
       cellViews))

Regards,

Andrew

Hi Andrew,

Was waiting for your answer. Thanks for answering.

For the first question, I will explain the scenario where i work. If i use any command like system("ls") then this command executes on the terminal where virtuoso has been launched. .So If i launch a calibre drc command it runs on the terminal on which virtuoso has been launched. (As of now no lsf). So If i launch lvs & drc, whichever is first lauched will start running on virtuoso launched terminal. Please let me know If i could able to explain you and make you understand. Basically what i am trying to say is whichever terminal virtuoso has been launched that terminal will be considered for running any unix or calibre command.

Regarding your second answer i tried to save opening each and every cell  in lib and using dbsave. It didnt work . But yes i will give a try on what you have coded and check it now. after streamin i am just checking for error message exist in streamin or not and exit the virtuoso. So looks like before exit this window pops up saying all "save cellview" and enabled the library name on which i imported.

I am sharing my code here.

dbCreateLib(libname libpath)
libid=ddGetObj(libname)
techBindTechFile(libid tech)

;;;;;;;;;;;;;;;;;;STREAMIN THE GDS;;;;;;;;;;;;;;;;;;;;

envSetVal("xstream" "xstShowCompletionMsgBox" 'boolean nil)
xstInSetField("library" libname)
xstInSetField("strmFile" apr_gdspath)
xstInSetField("attachTechFileOfLib" tech)
xstInSetField("summaryFile" "strmIn.sum")
xstInSetField("logFile" "strmIn.log")
xstInSetField("refLibList" reflib)
xstInSetField("propMap" "XST_AUTO_PM")
xstInSetField("detectVias" "true")
xstInSetField("virtualMemory" "true")
stat=xstInDoTranslate()

if(stat then
err_msg="grep -i 'error(s)' strmIn.log | cut -f5 -d ' ' | tr -d \\'"
warn_msg1="grep -i 'error(s)' strmIn.log | cut -f8 -d ' ' | tr -d \\'"
cid=ipcBeginProcess(err_msg)
ipcWait(cid)
er=ipcReadProcess(cid)
cid=ipcBeginProcess(warn_msg1)
ipcWait(cid)
wn=ipcReadProcess(cid)
while(rexMatchp("\\([^\n]*\\)\n\\([^\n]*\\)" er) er=rexSubstitute("\\1\\2"))
if(er!="0" then
printf("Error exist in gdsin")
system("echo Error exist in gdsin")
else
printf("%s %s" "No errors in gds & warnings" wn)
system("echo No errors in gds")
)
exit()
)
)

Thanks,

Harsha

It's not "using the terminal" - but if you use system() then any standard output that is written will appear on the standard output for virtuoso - which appears in the terminal you started virtuoso in.

You could use system("xterm -e /some/command &") but then the window would close as soon as it exited. Or you could use ipcBeginProcess or ipcBatchProcess and then show a log window.

I suspect your issue with it needing saving may be because you have told it to run with virtualMemory true. Without that, it would run in a background process and then definitely save afterwards.

Regards,

Andrew