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swift: add TailcatKit on the upstream C API - #64
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josuediazflores wants to merge 8 commits into
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josuediazflores wants to merge 8 commits into
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With CGO_ENABLED=0 the file that imports "C" drops out of the build but the helper files did not, leaving a package main with no main function. Constrain every file on cgo so the package is skipped instead.
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I'd like a C expert to review this API first. This is why I also haven't merged my early #6 That said, it's probably pretty close since both were modeled on libtailscale's API. |
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Of 3 pending PRs, I ended up going with the C API from #130. But that didn't add Swift. Could you rebase/redo your Swift work atop that API? |
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This reworks the Swift bindings on the C API merged in #130, as requested in the latest maintainer feedback. The previous
libtailcat/implementation is removed; the diff against current main adds only the Swift package and its README entry.TailcatKitprovides Swift 6 async servers, clients, listeners, and TCP connections for macOS 14+ and iOS 17+. It uses the upstream opaque handles, per-operation error strings, cancellation/deadline tokens, andtc_freeownership rules. Swift task cancellation interrupts pending C calls, while all blocking operations and resource teardown run off actor executors.The Apple build scripts now package
cmd/libtailcatand its public header asCTailcat.xcframework. Tests run against a local DERP/STUN relay and cover cancellation/reuse, half-close, partial writes, listener/connection ownership, key bundles, and address metadata. The README documents API changes including ephemeral listen port zero, idempotent startup, async close, and the upstream key format.Validation:
go test ./...go test -race ./internal/capi ./cmd/libtailcatmake -C swift testwith Swift warnings treated as errorsxcodebuildbuildsThe XCFramework remains a local build output; binary release distribution and UDP wrappers are not included.