No std ThreadId

[Person-93]

Re-implement ThreadId using PyThread_get_thread_ident. This makes is usable in no_std context.

[clin1234]

lgtm

[davidhewitt]

Thanks, one comment on the FFI definition (see below).

Do you expect that the test suite (which does a lot of thread spawning) will need to change?

[Person-93]

Do you expect that the test suite (which does a lot of thread spawning) will need to change?

I don't think it will need to change, but it might be worth enabling it for wasm build and pulling in one of the wasm threading crates as a dev dependency.

[davidhewitt]

Thanks

[codspeed-hq]

Merging this PR will improve performance by 10.89%

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 1 improved benchmark
✅ 139 untouched benchmarks

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	ordered_dunder_methods	2.7 µs	2.4 µs	+10.89%

Tip

Curious why this is faster? Comment @codspeedbot explain why this is faster on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing Person-93:no_std_thread_id (bd36107) with main (7550783)}

[clin1234]

@codspeedbot explain why this is faster

[Person-93]

Should we exclude PyPy from no_std support?