From e620daf3b1a40ae825c625bc4328fb7d2b3ee8b6 Mon Sep 17 00:00:00 2001 From: Jesse Luehrs Date: Wed, 2 Jul 2014 02:54:21 -0400 Subject: initial commit --- examples/21_spawn.rs | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 examples/21_spawn.rs (limited to 'examples/21_spawn.rs') diff --git a/examples/21_spawn.rs b/examples/21_spawn.rs new file mode 100644 index 0000000..770bb21 --- /dev/null +++ b/examples/21_spawn.rs @@ -0,0 +1,24 @@ +fn ack (m: uint, n: uint) -> uint { + match (m, n) { + (0, n) => n + 1, + (m, 0) => ack(m - 1, 1), + (m, n) => ack(m - 1, ack(m, n - 1)), + } +} +fn main () { + let (write, read) = channel(); + let (m, n) = (3, 10); + + spawn(proc () { + write.send(ack(m, n)); + }); + + let mut result = read.try_recv(); + while !result.is_ok() { + println!("."); + std::io::timer::sleep(100); + result = read.try_recv(); + } + println!("Ack({}, {}) = {}", m, n, result.unwrap_or_else(|e| { fail!(e) })); +} + -- cgit v1.2.3