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Should I use SUSV3 or OPEN_THREADS?

  • 1.  Should I use SUSV3 or OPEN_THREADS?

    Posted Mon July 11, 2022 07:00 AM
    I am looking at using pthreads, and cancelling them - on z/OS
    I see there are two functions which look the same.
    •  pthread_setcancelstate() - Set a thread cancelability state format (needs #define _OPEN_THREADS 2) and
    • pthread_setintr() - Set a thread cancelability state (needs#define _OPEN_THREADS).

    However the pthread_setintr says Usage notes: 1. If you are writing to the Single UNIX Specification, Version 3 standard, use pthread_setcancelstate() in place of pthread_setintr()


    Which should I use? I could not find any doc which gives pros and cons as to what define options are the best to use.
    I can see a variable __SUSV3_THR  in the pthread.h header file.

    Is there a strategic path I should be taking?
    I am doing this as part of an external Python external function.

    Colin Paice
    ​



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    Colin Paice
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