63 lines
1.3 KiB
Rust
63 lines
1.3 KiB
Rust
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// xfail-stage0
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use std;
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import std::ivec;
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tag msg {
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closed;
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received(u8[]);
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}
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fn producer(chan[u8[]] c) {
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c <| ~[1u8, 2u8, 3u8, 4u8];
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let u8[] empty = ~[];
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c <| empty;
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}
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fn packager(chan[chan[u8[]]] cb, chan[msg] msg) {
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let port[u8[]] p = port();
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cb <| chan(p);
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while (true) {
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log "waiting for bytes";
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let u8[] data;
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p |> data;
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log "got bytes";
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if (ivec::len[u8](data) == 0u) {
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log "got empty bytes, quitting";
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break;
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}
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log "sending non-empty buffer of length";
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log ivec::len[u8](data);
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msg <| received(data);
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log "sent non-empty buffer";
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}
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log "sending closed message";
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msg <| closed;
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log "sent closed message";
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}
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fn main() {
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let port[msg] p = port();
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let port[chan[u8[]]] recv_reader = port();
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auto pack = spawn packager(chan(recv_reader), chan(p));
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let chan[u8[]] source_chan;
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recv_reader |> source_chan;
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let task prod = spawn producer(source_chan);
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while (true) {
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let msg msg;
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p |> msg;
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alt (msg) {
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case (closed) {
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log "Got close message";
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break;
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}
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case (received(?data)) {
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log "Got data. Length is:";
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log ivec::len[u8](data);
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}
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}
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}
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}
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