ludic/docs/language/http/http-expected.md
Orkuncakilkaya 43d5eb5b88 feat(launcher): Process.*, Http.save_to/received/expected, App.window_hide/show
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>
2026-09-17 13:32:23 +03:00

915 B

id name category kind tokens sig tip order ns member
http-expected Http.expected http namespace-method Http.expected Http.expected(handle) -> int The body length the server announced, or -1. 18 Http expected

Returns the length of the response body as the server announced it (Content-Length), or -1 while that is not known. For a request given Http.save_to it is known as soon as the headers arrive, and stays -1 for a reply sent without a length (chunked) — draw an indeterminate bar then. For an ordinary in-memory request it is -1 until the reply lands, then the body length.

program Demo {
  entry {
    let h = Http.open("GET", "https://example.com/big.bin")
    Http.save_to(h, "big.bin.part")
    Http.send(h)
    print(Http.expected(h))   # -1: nothing has arrived yet
  }
}