26 lines
498 B
Rust
26 lines
498 B
Rust
// -*- rust -*-
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use std;
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import std::task;
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import std::comm;
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fn sub(parent: comm::_chan[int], id: int) {
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if (id == 0) {
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comm::send(parent, 0);
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} else {
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let p = comm::mk_port();
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let child = task::_spawn(bind sub(p.mk_chan(), id-1));
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let y = p.recv();
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comm::send(parent, y + 1);
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}
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}
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fn main() {
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let p = comm::mk_port();
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let child = task::_spawn(bind sub(p.mk_chan(), 200));
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let y = p.recv();
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log "transmission complete";
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log y;
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assert (y == 200);
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}
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