feat(driver)!: accept multi

[Berrysoft]

Have to refactor the set_result mechanism to avoid fd leaks.

[Copilot]

Pull request overview

This PR refactors how fd-returning operations handle completion/cancellation to prevent descriptor leaks, and adds a multishot accept operation (AcceptMulti) to the driver API.

Changes:

• Replace the previous set_result-style “store fd inside op” mechanism with an explicit drop_result hook and op.result(...) extraction helpers.
• Add Proactor::cancel_ignore and update runtime/tests/callers to use it so successful-but-ignored results can be disposed (e.g., close fds).
• Introduce AcceptMulti and wire it up across unix/iouring/poll/stub, plus add coverage in driver tests.

Reviewed changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
compio/examples/driver.rs	Update example to use op.result(...) for OpenFile instead of into_inner().
compio-runtime/src/runtime/mod.rs	Switch runtime cancellation to cancel_ignore to dispose ignored results.
compio-net/src/socket.rs	Update socket creation/accept to use op.result(...) for fd ownership transfer.
compio-fs/src/open_options/unix.rs	Update OpenFile completion handling to use op.result(...).
compio-driver/tests/personality.rs	Update test helper to use op.result(...) (no IntoInner).
compio-driver/tests/op.rs	Refactor multishot wait helper, switch cancellations to cancel_ignore, add accept_multi test.
compio-driver/src/sys/unix_op.rs	Remove stored-fd fields; add unsafe result(...) extractors; add AcceptMulti.
compio-driver/src/sys/stub/op.rs	Mark AcceptMulti as an OpCode for the stub backend.
compio-driver/src/sys/stub/mod.rs	Add a stub drop_result hook to match new driver interface.
compio-driver/src/sys/poll/op.rs	Stop storing accepted/created/opened fds in ops; add polling AcceptMulti opcode delegation.
compio-driver/src/sys/poll/mod.rs	Add OpCode::drop_result hook and Driver::drop_result dispatcher.
compio-driver/src/sys/poll/extra.rs	Remove is_iour() helper from poll Extra.
compio-driver/src/sys/iour/op.rs	Rename set_result→drop_result and add AcceptMulti io_uring opcode support.
compio-driver/src/sys/iour/mod.rs	Add Driver::drop_result dispatcher; rename trait hook to drop_result.
compio-driver/src/sys/iour/extra.rs	Remove is_iour() helper from io_uring Extra.
compio-driver/src/sys/iocp/mod.rs	Add no-op drop_result to match new driver interface.
compio-driver/src/sys/fusion/op.rs	Macro tweak to support specifying poll/iour op paths.
compio-driver/src/sys/fusion/mod.rs	Forward drop_result to the active fused backend driver.
compio-driver/src/sys/fusion/extra.rs	Remove is_iour() helper from fusion Extra.
compio-driver/src/op.rs	Export AcceptMulti on unix; narrow managed re-exports when not(io_uring).
compio-driver/src/lib.rs	Add cancel_with_extra + cancel_ignore; cancellation now can drop ignored results.
compio-driver/src/key.rs	Remove io_uring-only set_result special casing that previously stored fds inside ops.

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[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

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[George-Miao]

LGTM