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RTOS: how to stop the scheduler?

Juvf Anisimov
Intellectual 900 points

Tool/software: TI-RTOS

At some point, I need the current task to be executed and not to switch to other tasks, despite the fact that other tasks are more priority and ready to be performed. How to temporarily stop task switching, but interrupts must be handled.

  • 0
    TI__Mastermind 30830 points

    Juvf,

    A technique often used for this purpose is to temporarily raise the priority of the running task such that it is higher than the priority of every other task:

        Int myNormalPriority; 

    myNormalPriority = Task_getPri(Task_self());

    /* increase my priority so that I can't be pre-empted */
    Task_setPri(Task_self(), 15);

    /* do the critical work here ... */

    /* restore my priority back to normal */
    Task_setPri(Task_self(), myNormalPriority);

    Alan