Deterministic runtime crate#5016
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Co-authored-by: Shubham Mishra <shivam828787@gmail.com> Signed-off-by: Shubham Mishra <shivam828787@gmail.com>
Signed-off-by: Shubham Mishra <shivam828787@gmail.com>
kim
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May 19, 2026
| Tokio(tokio::task::JoinHandle<T>), | ||
| #[cfg(feature = "simulation")] | ||
| Simulation(sim::JoinHandle<T>), | ||
| Detached(PhantomData<T>), |
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This one is interesting and could use some commentary!
| let original = PTHREAD_ATTR_INIT.get_or_init(|| unsafe { | ||
| // `RTLD_NEXT` skips this interposed function and finds the libc | ||
| // implementation that would have been called without the simulator. | ||
| let ptr = libc::dlsym(libc::RTLD_NEXT, c"pthread_attr_init".as_ptr().cast()); |
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overriding libc methods turning out to be limited for detecting source of nondeterminism. I am experimenting with eBPF, which looks more powerful.
kim
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May 20, 2026
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Description of Changes.
Introduces deterministic runtime crate.
Integrate it with RelationalDB.
I think best steps to review:
durability,core,snapshot, etc.Draft branch to Test code - #5019
API and ABI breaking changes
NA
Expected complexity level and risk
Does not intend to change any production functionality, but it's big code.
Testing