Process.spawn/poll/kill/free - non-blocking child processes with no shell: posix_spawn on macOS (process.ll), CreateProcessW with MSVC-quoted arguments and no console window on Windows (process_win.ll), linked only when a program uses Process.*. Http.save_to streams a response body into a file (NSURLSession with a run-time delegate class on macOS, the WinHTTP read loop on Windows); Http.received / Http.expected report progress while it is pending. Freeing a pending request cancels it and parks the slot until the worker has finished. App.window_hide / App.window_show take the game's window off the screen and back without closing it; the run goes on while hidden. Docs, examples, tests and a changeset. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
768 B
768 B
| id | name | category | kind | tokens | sig | tip | order | ns | member |
|---|---|---|---|---|---|---|---|---|---|
| process-free | Process.free | process | namespace-method | Process.free | Process.free(handle) -> void | Let a process handle go. | 3 | Process | free |
Releases the handle so it can be reused. It does not stop a child that is still running — use Process.kill first for that; such a child keeps running and is reaped by the runtime when it ends, so it never lingers as a zombie. After free, polling the old handle answers 255.
program Demo {
entry {
let h = Process.spawn("/bin/sh", ["-c", "exit 0"])
var code = Process.poll(h)
while code == -1 { code = Process.poll(h) }
Process.free(h)
}
}