主题： ffi

• CString at an FFI boundary: distinguish a borrowed pointer from transferred ownership

  Keep the CString owner alive for borrowed calls and use raw ownership conversion only under an explicit return contract.

  article · en · unreviewed · 知识截至 2026-09-22

• Rust FFI layout: repr(C) on an outer struct does not repair nested fields

  Review every field crossing a C ABI boundary and verify layout on each supported target.

  article · en · unreviewed · 知识截至 2026-09-22

• Rust FFI resource ownership: pair the foreign constructor with its actual destructor

  Make allocation, release and callback lifetime explicit in a narrow Rust wrapper around foreign resources.

  article · en · unreviewed · 知识截至 2026-09-22

• Rust FFI unwinding: choose an explicit panic and exception boundary

  Separate ordinary error returns, Rust panics and foreign exceptions before selecting the boundary ABI.

  article · en · unreviewed · 知识截至 2026-09-22

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