105 lines
3.0 KiB
Rust
105 lines
3.0 KiB
Rust
// Ping-pong is a bounded protocol. This is place where I can
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// experiment with what code the compiler should generate for bounded
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// protocols.
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// xfail-pretty
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// This was generated initially by the pipe compiler, but it's been
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// modified in hopefully straightforward ways.
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mod pingpong {
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import pipes::*;
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type packets = {
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ping: packet<ping>,
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pong: packet<pong>,
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};
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fn init() -> (client::ping, server::ping) {
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let buffer = ~{
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header: buffer_header(),
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data: {
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ping: mk_packet::<ping>(),
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pong: mk_packet::<pong>()
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}
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};
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do pipes::entangle_buffer(buffer) |buffer, data| {
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data.ping.set_buffer(buffer);
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data.pong.set_buffer(buffer);
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ptr::addr_of(data.ping)
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}
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}
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enum ping = server::pong;
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enum pong = client::ping;
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mod client {
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fn ping(+pipe: ping) -> pong {
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{
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let b = pipe.reuse_buffer();
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let s = send_packet_buffered(ptr::addr_of(b.buffer.data.pong));
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let c = recv_packet_buffered(ptr::addr_of(b.buffer.data.pong));
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let message = pingpong::ping(s);
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pipes::send(pipe, message);
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c
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}
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}
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type ping = pipes::send_packet_buffered<pingpong::ping,
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pingpong::packets>;
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type pong = pipes::recv_packet_buffered<pingpong::pong,
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pingpong::packets>;
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}
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mod server {
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type ping = pipes::recv_packet_buffered<pingpong::ping,
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pingpong::packets>;
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fn pong(+pipe: pong) -> ping {
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{
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let b = pipe.reuse_buffer();
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let s = send_packet_buffered(ptr::addr_of(b.buffer.data.ping));
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let c = recv_packet_buffered(ptr::addr_of(b.buffer.data.ping));
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let message = pingpong::pong(s);
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pipes::send(pipe, message);
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c
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}
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}
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type pong = pipes::send_packet_buffered<pingpong::pong,
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pingpong::packets>;
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}
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}
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mod test {
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import pipes::recv;
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import pingpong::{ping, pong};
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fn client(-chan: pingpong::client::ping) {
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import pingpong::client;
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let chan = client::ping(chan); ret;
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log(error, "Sent ping");
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let pong(_chan) = recv(chan);
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log(error, "Received pong");
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}
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fn server(-chan: pingpong::server::ping) {
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import pingpong::server;
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let ping(chan) = recv(chan); ret;
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log(error, "Received ping");
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let _chan = server::pong(chan);
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log(error, "Sent pong");
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}
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}
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fn main() {
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let (client_, server_) = pingpong::init();
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let client_ = ~mut some(client_);
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let server_ = ~mut some(server_);
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do task::spawn |move client_| {
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let mut client__ = none;
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*client_ <-> client__;
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test::client(option::unwrap(client__));
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};
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do task::spawn |move server_| {
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let mut server_ˊ = none;
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*server_ <-> server_ˊ;
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test::server(option::unwrap(server_ˊ));
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};
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}
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