3 Commits

Include renames

Author	SHA1	Message	Date
jpmschweitzerandClaude Opus 4.7	8074bf4201	replace forkpty() with posix_openpt() + posix_spawn() (T-96) ... `forkpty` calls `fork()` underneath. `fork()` in a multithreaded process is unsafe: only the calling thread survives in the child, but libc locks held by other threads remain "locked forever." With the multi-threaded Dart VM as parent, ~5% of spawns deadlocked in the child before `execve` (forensic probe: child stuck in S state with comm=`DartWorker`, master fd never sees POLLIN). `posix_spawn` uses `vfork` on glibc/musl/macOS, keeping the parent suspended until execve completes — no Dart code runs in the child. Pty pair built via the POSIX-standard `posix_openpt` / `grantpt` / `unlockpt` / `ptsname` sequence. Probed: zero hangs in 300 sequential spawns vs ~5% before. Behavior change: missing executable / missing workingDirectory now surface as a `PtyException` thrown by `NativePty.start` rather than a diagnostic written from the child to the slave PTY. Cleaner error path for callers. Side benefit: drops the `libutil.so.1` dynamic-library dependency. PTY now resolves entirely against libc via `DynamicLibrary.process()`. Splits the library-level `@Tags(['forkpty'])` on session_test.dart into a per-test tag, so the now-runnable-under-flutter-test cases contribute to coverage. `dart_test.yaml` declares the tag so the exclude-tags filters honor it. Drops the `retry: 2` workaround from the formerly-flaky registry test. D-5 amended. Trims session-introduced CHANGELOG entries that were over-verbose for the Keep-a-Changelog format. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>	2026-05-17 20:21:41 +02:00
Jeroen SchweitzerandClaude Opus 4.6	5aa0eb46e4	replace ptyc with forkpty() via Dart FFI ... NativePty calls forkpty() directly — no helper binary, no socketpair, no SCM_RIGHTS. The master fd stays in-process. Reader isolate uses poll() for clean shutdown. Based on the pty-spike proof-of-concept. Platform-aware: macOS uses libSystem (DynamicLibrary.process), Linux needs libutil.so.1. TIOCSWINSZ platform-detected. PaneRegistry updated to use NativePty. registerPaneCommands no longer needs a Toolchain parameter. All ptyc references removed from the daemon layer. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-04-30 20:30:15 +02:00
jpmschweitzerandClaude	edd8a20e0d	add Dart PTY wrapper and test-core harness ... PtySession wraps the ptyc helper: socketpair + Process.start + recvmsg with SCM_RIGHTS for master-fd transfer, a background isolate that loops on blocking read() and posts byte chunks, plus write/resize/ kill/close. close() SIGTERMs the child so the PTY's EOF wakes the reader naturally; SIGKILL + fd close + isolate kill cover the edge where the shell ignores SIGTERM — avoids the known Linux quirk where closing an fd doesn't unblock an in-flight read() on it. Env defaults stamp TERM=xterm-256color, COLORTERM=truecolor, CLICOLOR_FORCE=1 so shells + tmux + Claude emit 24-bit sequences that xterm.dart can render. User env (HOME / USER / SHELL) still inherits via mergePtyEnv(). ffi: 2.1.3 added as a runtime dep — the FFI bindings for socketpair, recvmsg, read/write, and ioctl(TIOCSWINSZ) need an allocator we're not writing by hand. Justified in pubspec + listed in licenses.yaml per D-042. make test-core (ci/test_core.sh) runs the Flutter-free core tests under a 120s hard timeout with setsid + process-group kill, wired ahead of the fast app tests in push-check so a hung PTY test can't wedge a pre-push. Current core suite: 24 tests in ~1s. Co-Authored-By: Claude <noreply@anthropic.com>	2026-04-22 09:01:01 +02:00