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Implement a stub pthreads library for THREAD_MODEL=single #518

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Implement a stub pthreads library for THREAD_MODEL=single #518

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Commits on Aug 6, 2024

  1. Add dummy implementation of pthread_attr for single-threaded model

    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  2. Add a stub implementation of barriers

    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  3. Add a stub implementation of mutexes

    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  4. Add a stub implementation of condvars

    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  5. Add a stub implementation of rwlocks

    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  6. Add a stub implementation of spinlocks

    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  7. Stub out the "simple" pthread functions

    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  8. Enable pthread_self 

    This is needed in order to *correctly* implement things such as
cancellation handlers being invoked on pthread_exit
    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  9. Enable a number of functions that now work now that we have pthread_self

    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  10. Implement single_threaded pthread_exit 

    Performs all the cancellation actions and then calls exit()
    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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  11. Don't invoke notify builtin in single-threaded mode 

    This fixes compatibility with old versions of clang
    @ArcaneNibble
    ArcaneNibble committed Aug 6, 2024
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