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Status Not under consideration
Workspace PL/I Compilers
Created by Guest
Created on Aug 14, 2019

RELATED IDEAS

PL/I to support multithreading under 64-bit

PL/I needs to support multithreading under 64-bit.
Actually, when a multithreaded application executes a LP(64) PL/I program, it always works the first time, but afterward any subsequent call can fail if not run from the same thread.

From the investiguations so far, it appears that the first time the LP(64) PL/I program is run, it introduces a requirement for the PL/I run-time, so the enclave and the thread on which it happens are "dubbed" for PL/I, but in the absence of multithreading support none of the other worker threads in the server are so "dubbed". When the program is run a second time, it may run on a different worker thread, one that hasn't been dubbed, and in this case abends on the missing PL/I thread-level control block.

Idea priority High
  • Guest
    Reply
    |     Sep 15, 2023
    We think this requirement is not so much for multithreading support (which would involve creating PL/I threads, etc) as multithreading tolerance. We also think it sounds like a bug. If you still have this problem, please open a defect against PL/I for it
  • Guest
    Reply
    |     Aug 30, 2019

    This would make our 64-bit support a better match for our 31-bit support

  • Guest
    Reply
    |     Aug 15, 2019

    I think the usercase specifyed is not correct :
    "Web application in Tomcat server featuring servlets which invoke Java Native libraries written in PL/I."
    I think Java Native Libraries are not written in Pl/I.

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