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ENVIRONMENT VARIABLES

Julien Terrier

Hello,

Currently I meet a problem with my environnement variable (from unix) and cadence virtuoso.

Sometimes I have to change an environment variable to work in dev mode ( It's an environment variable who I have created). But If my cadence virtuoso is already open it doesn't get the new value of my environment variable.

Description:

I work with cadence virtuoso to make some layout, i need to change of mode to load any skill procedure.

I go in my script, I change my environment variable "TOTO" in 1 then I source my script .mycsh.

In unix my environment variable is modified  now "TOTO" value is 1 whereas before it value was 0

I check in CIW ==> getShellEnvVar( "TOTO")  return of the function is not update the value is always 0

Therefore I stay in prod mode and I can't get the right path to load my skill procedure.

 

Please, could you tell me if there is an way to resolve my problem, thanks lot !

  • Andrew Beckett

    Hi Julien,

    This is hardly surprising. UNIX environment variables are inherited by child processes when they start. Subsequent changes to an environment variable in a parent process will have no impact on any already started child processes. This is nothing to do with Virtuoso - that's how UNIX works.

    You can however change the environment variable within the current process using SKILL, using the setShellEnvVar() function:

    setShellEnvVar("TOTO=1")

    That will set it for the Virtuoso process, plus any child processes from Virtuoso launched from that point onwards.

    Kind Regards,

    Andrew.

  • Julien Terrier
    Thank you for your fast and relevant answer.
  • Satyavada
    in reply to Andrew Beckett

    Hello Andrew, is there a way I can source a group of scripts before Virtuoso is launched, I want the tool to run these scripts before it launches.

  • Andrew Beckett
    in reply to Satyavada

    What kind of scripts are you talking about? Shell scripts (if so what flavour of shell script)? SKILL scripts, or something else? 

    Andrew

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