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IPC communication between Python and Cadence

Vijay Srini

Hi All,

 I am trying to open a IPC channel between python and cadence. I managed to get one way communication from either to the other, but unable to get two way communication.

 Please help to point me in the right direction!

 

 Thanks in advance,

 

Vijay

Parents

  • Hi Derek,

     

    Thank you for your quick help. Everything goes fine but I am not able to read the returnData. The log file has only the "mySkillCommand..."

    I seem to have some issue with read timing.

    I tried doing it another way like the following:

    Python:

    import sys
    import os
    sys.stdout.flush()

    os.write(3,"(println \"Hello World!!\")")
    os.write(3,"(println \"Second time, Hello World!!\")")
    os.write(3,"(3+3)")

    a="(nil)"

    while "(nil)" in a:

        a="Start:",os.read(4,4096)

     

    SKILL:

    cid = ipcSkillProcess("python ~/scripts/skill/ipc_py/test2.py")

     

     I still have some timing issue, which improved with that while loop. Cadence seemed to return "(nil)" each time the read timing missed. Is there anyway to permanently resolve this issue?

     

     

    Thanks,

    Vijay

Reply

  • Hi Derek,

     

    Thank you for your quick help. Everything goes fine but I am not able to read the returnData. The log file has only the "mySkillCommand..."

    I seem to have some issue with read timing.

    I tried doing it another way like the following:

    Python:

    import sys
    import os
    sys.stdout.flush()

    os.write(3,"(println \"Hello World!!\")")
    os.write(3,"(println \"Second time, Hello World!!\")")
    os.write(3,"(3+3)")

    a="(nil)"

    while "(nil)" in a:

        a="Start:",os.read(4,4096)

     

    SKILL:

    cid = ipcSkillProcess("python ~/scripts/skill/ipc_py/test2.py")

     

     I still have some timing issue, which improved with that while loop. Cadence seemed to return "(nil)" each time the read timing missed. Is there anyway to permanently resolve this issue?

     

     

    Thanks,

    Vijay

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