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851409aca4
Adds a C++ e2e case proving re-entrancy: from inside an `on_echo_fired` handler the consumer issues another request to the library, carrying data taken from the event, and gets a correct response back. The handler runs on the FFI thread with the event-registry lock held, so the test documents and exercises the only safe shape: an *async* request. A synchronous call from the handler would self-deadlock (the FFI thread is busy running the handler), and add/removeEventListener would deadlock on the registry lock. The async request merely queues on the FFI channel and is drained once the handler returns; its future is moved out and resolved on the main thread. A one-shot guard avoids the echo->event->echo storm (echo re-fires the event). Timeouts turn any deadlock regression into a failure rather than a hang. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
nim-ffi
Allows exposing Nim projects to other languages
Example
examples/timer is now a self-contained Nimble project that imports nim-ffi directly.
Use cd examples/timer && nimble install -y ../.. && nimble build to compile the example.