Facets!
This commit is contained in:
parent
ae46e42539
commit
f56c0df10f
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@ -24,13 +24,13 @@ pub struct Config {
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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syndicate::convenient_logging()?;
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Actor::new().boot(syndicate::name!("consumer"), |t| {
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let ac = t.actor.clone();
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let facet = t.facet.clone();
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let boot_account = Arc::clone(t.account());
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Ok(t.state.linked_task(tracing::Span::current(), async move {
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Ok(t.linked_task(tracing::Span::current(), async move {
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let config = Config::from_args();
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let sturdyref = sturdy::SturdyRef::from_hex(&config.dataspace)?;
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let (i, o) = TcpStream::connect("127.0.0.1:8001").await?.into_split();
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Activation::for_actor(&ac, boot_account, |t| {
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facet.activate(boot_account, |t| {
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relay::connect_stream(t, i, o, sturdyref, (), |_state, t, ds| {
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let consumer = syndicate::entity(0)
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.on_message(|message_count, _t, m: AnyValue| {
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@ -42,21 +42,22 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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}
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Ok(())
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})
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.create_cap(t.state);
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.create_cap(t);
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ds.assert(t, &Observe {
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pattern: syndicate_macros::pattern!("<Says $ $>"),
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observer: Arc::clone(&consumer),
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});
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t.state.linked_task(syndicate::name!("tick"), async move {
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t.linked_task(syndicate::name!("tick"), async move {
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let mut stats_timer = interval(Duration::from_secs(1));
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loop {
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stats_timer.tick().await;
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let consumer = Arc::clone(&consumer);
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external_event(&Arc::clone(&consumer.underlying.mailbox),
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&Account::new(syndicate::name!("account")),
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Box::new(move |t| consumer.underlying.with_entity(
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|e| e.message(t, AnyValue::new(true)))))?;
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Box::new(move |t| t.with_entity(
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&consumer.underlying,
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|t, e| e.message(t, AnyValue::new(true)))))?;
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}
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});
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Ok(None)
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@ -92,13 +92,13 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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syndicate::convenient_logging()?;
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Actor::new().boot(syndicate::name!("pingpong"), |t| {
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let ac = t.actor.clone();
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let facet = t.facet.clone();
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let boot_account = Arc::clone(t.account());
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Ok(t.state.linked_task(tracing::Span::current(), async move {
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Ok(t.linked_task(tracing::Span::current(), async move {
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let config = Config::from_args();
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let sturdyref = sturdy::SturdyRef::from_hex(&config.dataspace)?;
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let (i, o) = TcpStream::connect("127.0.0.1:8001").await?.into_split();
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Activation::for_actor(&ac, boot_account, |t| {
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facet.activate(boot_account, |t| {
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relay::connect_stream(t, i, o, sturdyref, (), move |_state, t, ds| {
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let (send_label, recv_label, report_latency_every, should_echo, bytes_padding) =
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@ -116,7 +116,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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let mut rtt_ns_samples: Vec<u64> = vec![0; report_latency_every];
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let mut rtt_batch_count: usize = 0;
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let mut current_reply = None;
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let self_ref = t.state.create_inert();
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let self_ref = t.create_inert();
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self_ref.become_entity(
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syndicate::entity(Arc::clone(&self_ref))
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.on_message(move |self_ref, t, m: AnyValue| {
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@ -177,15 +177,16 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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observer: Arc::clone(&consumer),
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});
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t.state.linked_task(syndicate::name!("tick"), async move {
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t.linked_task(syndicate::name!("tick"), async move {
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let mut stats_timer = interval(Duration::from_secs(1));
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loop {
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stats_timer.tick().await;
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let consumer = Arc::clone(&consumer);
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external_event(&Arc::clone(&consumer.underlying.mailbox),
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&Account::new(syndicate::name!("account")),
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Box::new(move |t| consumer.underlying.with_entity(
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|e| e.message(t, AnyValue::new(true)))))?;
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Box::new(move |t| t.with_entity(
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&consumer.underlying,
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|t, e| e.message(t, AnyValue::new(true)))))?;
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}
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});
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@ -193,7 +194,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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let turn_count = c.turn_count;
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let action_count = c.action_count;
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let account = Arc::clone(t.account());
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t.state.linked_task(syndicate::name!("boot-ping"), async move {
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t.linked_task(syndicate::name!("boot-ping"), async move {
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let padding: AnyValue = Value::ByteString(vec![0; bytes_padding]).wrap();
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for _ in 0..turn_count {
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let mut events: PendingEventQueue = vec![];
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@ -203,8 +204,9 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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for _ in 0..action_count {
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let ds = Arc::clone(&ds);
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let current_rec = current_rec.clone();
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events.push(Box::new(move |t| ds.underlying.with_entity(
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|e| e.message(t, current_rec))));
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events.push(Box::new(move |t| t.with_entity(
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&ds.underlying,
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|t, e| e.message(t, current_rec))));
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}
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external_events(&ds.underlying.mailbox, &account, events)?
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}
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@ -33,26 +33,27 @@ fn says(who: AnyValue, what: AnyValue) -> AnyValue {
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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syndicate::convenient_logging()?;
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Actor::new().boot(syndicate::name!("producer"), |t| {
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let ac = t.actor.clone();
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let facet = t.facet.clone();
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let boot_account = Arc::clone(t.account());
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Ok(t.state.linked_task(tracing::Span::current(), async move {
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Ok(t.linked_task(tracing::Span::current(), async move {
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let config = Config::from_args();
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let sturdyref = sturdy::SturdyRef::from_hex(&config.dataspace)?;
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let (i, o) = TcpStream::connect("127.0.0.1:8001").await?.into_split();
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Activation::for_actor(&ac, boot_account, |t| {
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facet.activate(boot_account, |t| {
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relay::connect_stream(t, i, o, sturdyref, (), move |_state, t, ds| {
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let padding: AnyValue = Value::ByteString(vec![0; config.bytes_padding]).wrap();
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let action_count = config.action_count;
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let account = Account::new(syndicate::name!("account"));
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t.state.linked_task(syndicate::name!("sender"), async move {
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t.linked_task(syndicate::name!("sender"), async move {
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loop {
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account.ensure_clear_funds().await;
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let mut events: PendingEventQueue = Vec::new();
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for _ in 0..action_count {
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let ds = Arc::clone(&ds);
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let padding = padding.clone();
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events.push(Box::new(move |t| ds.underlying.with_entity(
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|e| e.message(t, says(Value::from("producer").wrap(), padding)))));
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events.push(Box::new(move |t| t.with_entity(
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&ds.underlying,
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|t, e| e.message(t, says(Value::from("producer").wrap(), padding)))));
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}
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external_events(&ds.underlying.mailbox, &account, events)?;
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}
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@ -24,13 +24,13 @@ pub struct Config {
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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syndicate::convenient_logging()?;
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Actor::new().boot(syndicate::name!("state-consumer"), |t| {
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let ac = t.actor.clone();
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let facet = t.facet.clone();
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let boot_account = Arc::clone(t.account());
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Ok(t.state.linked_task(tracing::Span::current(), async move {
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Ok(t.linked_task(tracing::Span::current(), async move {
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let config = Config::from_args();
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let sturdyref = sturdy::SturdyRef::from_hex(&config.dataspace)?;
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let (i, o) = TcpStream::connect("127.0.0.1:8001").await?.into_split();
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Activation::for_actor(&ac, boot_account, |t| {
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facet.activate(boot_account, |t| {
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relay::connect_stream(t, i, o, sturdyref, (), |_state, t, ds| {
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let consumer = {
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#[derive(Default)]
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@ -61,7 +61,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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s.arrival_counter = 0;
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s.departure_counter = 0;
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Ok(())
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}).create_cap(t.state)
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}).create_cap(t)
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};
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ds.assert(t, &Observe {
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@ -69,15 +69,16 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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observer: Arc::clone(&consumer),
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});
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t.state.linked_task(syndicate::name!("tick"), async move {
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t.linked_task(syndicate::name!("tick"), async move {
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let mut stats_timer = interval(Duration::from_secs(1));
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loop {
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stats_timer.tick().await;
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let consumer = Arc::clone(&consumer);
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external_event(&Arc::clone(&consumer.underlying.mailbox),
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&Account::new(syndicate::name!("account")),
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Box::new(move |t| consumer.underlying.with_entity(
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|e| e.message(t, AnyValue::new(true)))))?;
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Box::new(move |t| t.with_entity(
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&consumer.underlying,
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|t, e| e.message(t, AnyValue::new(true)))))?;
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}
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});
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Ok(None)
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@ -19,16 +19,16 @@ pub struct Config {
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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syndicate::convenient_logging()?;
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Actor::new().boot(syndicate::name!("state-producer"), |t| {
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let ac = t.actor.clone();
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let facet = t.facet.clone();
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let boot_account = Arc::clone(t.account());
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Ok(t.state.linked_task(tracing::Span::current(), async move {
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Ok(t.linked_task(tracing::Span::current(), async move {
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let config = Config::from_args();
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let sturdyref = sturdy::SturdyRef::from_hex(&config.dataspace)?;
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let (i, o) = TcpStream::connect("127.0.0.1:8001").await?.into_split();
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Activation::for_actor(&ac, boot_account, |t| {
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facet.activate(boot_account, |t| {
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relay::connect_stream(t, i, o, sturdyref, (), move |_state, t, ds| {
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let account = Account::new(syndicate::name!("account"));
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t.state.linked_task(syndicate::name!("sender"), async move {
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t.linked_task(syndicate::name!("sender"), async move {
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let presence: AnyValue = Value::simple_record1(
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"Present",
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Value::from(std::process::id()).wrap()).wrap();
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@ -38,13 +38,13 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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let presence = presence.clone();
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let handle = handle.clone();
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external_event(&Arc::clone(&ds.underlying.mailbox), &account, Box::new(
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move |t| ds.underlying.with_entity(|e| e.assert(t, presence, handle))))
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move |t| t.with_entity(&ds.underlying, |t, e| e.assert(t, presence, handle))))
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};
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let retract_e = || {
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let ds = Arc::clone(&ds);
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let handle = handle.clone();
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external_event(&Arc::clone(&ds.underlying.mailbox), &account, Box::new(
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move |t| ds.underlying.with_entity(|e| e.retract(t, handle))))
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move |t| t.with_entity(&ds.underlying, |t, e| e.retract(t, handle))))
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};
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assert_e()?;
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loop {
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@ -72,13 +72,11 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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tracing::info!(r"");
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}
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let mut non_daemons = Vec::new();
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tracing::trace!("startup");
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if config.debt_reporter {
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Actor::new().boot(syndicate::name!("debt-reporter"), |t| {
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t.state.linked_task(syndicate::name!("tick"), async {
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t.linked_task(syndicate::name!("tick"), async {
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let mut timer = tokio::time::interval(core::time::Duration::from_secs(1));
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loop {
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timer.tick().await;
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@ -93,51 +91,49 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
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});
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}
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let ds = Cap::new(&Actor::create_and_start(syndicate::name!("dataspace"), Dataspace::new()));
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Actor::new().boot(syndicate::name!("dataspace"), move |t| {
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let ds = Cap::new(&t.create(Dataspace::new()));
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if config.inferior {
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let ds = Arc::clone(&ds);
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non_daemons.push(
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Actor::new().boot(syndicate::name!("parent"), move |t| run_io_relay(
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t,
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relay::Input::Bytes(Box::pin(tokio::io::stdin())),
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relay::Output::Bytes(Box::pin(tokio::io::stdout())),
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ds)));
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}
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let gateway = Cap::guard(&Actor::create_and_start(
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syndicate::name!("gateway"),
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syndicate::entity(Arc::clone(&ds)).on_asserted(handle_resolve)));
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{
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let ds = Arc::clone(&ds);
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Actor::new().boot(syndicate::name!("rootcap"), move |t| {
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use syndicate::schemas::gatekeeper;
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let key = vec![0; 16];
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let sr = sturdy::SturdyRef::mint(_Any::new("syndicate"), &key);
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tracing::info!(rootcap = debug(&_Any::from(&sr)));
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tracing::info!(rootcap = display(sr.to_hex()));
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ds.assert(t, &gatekeeper::Bind { oid: sr.oid.clone(), key, target: ds.clone() });
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Ok(())
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});
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}
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if config.inferior {
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let ds = Arc::clone(&ds);
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Actor::new().boot(syndicate::name!("parent"), move |t| run_io_relay(
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t,
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relay::Input::Bytes(Box::pin(tokio::io::stdin())),
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relay::Output::Bytes(Box::pin(tokio::io::stdout())),
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ds));
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}
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let gateway = Cap::guard(&t.create(
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syndicate::entity(Arc::clone(&ds)).on_asserted(handle_resolve)));
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for port in config.ports.clone() {
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let gateway = Arc::clone(&gateway);
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non_daemons.push(Actor::new().boot(
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Actor::new().boot(
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syndicate::name!("tcp", port),
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move |t| Ok(t.state.linked_task(syndicate::name!("listener"),
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run_tcp_listener(gateway, port)))));
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move |t| Ok(t.linked_task(syndicate::name!("listener"),
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run_tcp_listener(gateway, port))));
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}
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for path in config.sockets.clone() {
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let gateway = Arc::clone(&gateway);
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non_daemons.push(Actor::new().boot(
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Actor::new().boot(
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syndicate::name!("unix", socket = debug(path.to_str().expect("representable UnixListener path"))),
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move |t| Ok(t.state.linked_task(syndicate::name!("listener"),
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run_unix_listener(gateway, path)))));
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move |t| Ok(t.linked_task(syndicate::name!("listener"),
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run_unix_listener(gateway, path))));
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}
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futures::future::join_all(non_daemons).await;
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Ok(())
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}).await??;
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Ok(())
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}
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@ -183,24 +179,24 @@ fn run_io_relay(
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o: relay::Output,
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initial_ref: Arc<Cap>,
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) -> ActorResult {
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let exit_listener = t.state.create(ExitListener);
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let exit_listener = t.create(ExitListener);
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t.state.add_exit_hook(&exit_listener);
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relay::TunnelRelay::run(t, i, o, Some(initial_ref), None);
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Ok(())
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}
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fn run_connection(
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ac: ActorRef,
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facet: FacetRef,
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i: relay::Input,
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o: relay::Output,
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initial_ref: Arc<Cap>,
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) -> ActorResult {
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Activation::for_actor(&ac, Account::new(syndicate::name!("start-session")),
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facet.activate(Account::new(syndicate::name!("start-session")),
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|t| run_io_relay(t, i, o, initial_ref))
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}
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async fn detect_protocol(
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ac: ActorRef,
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facet: FacetRef,
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stream: TcpStream,
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gateway: Arc<Cap>,
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addr: std::net::SocketAddr,
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@ -229,7 +225,7 @@ async fn detect_protocol(
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_ => unreachable!()
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}
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};
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run_connection(ac, i, o, gateway)
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run_connection(facet, i, o, gateway)
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}
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async fn run_tcp_listener(
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@ -244,9 +240,9 @@ async fn run_tcp_listener(
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let gateway = Arc::clone(&gateway);
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let ac = Actor::new();
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ac.boot(syndicate::name!(parent: None, "tcp"),
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move |t| Ok(t.state.linked_task(
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move |t| Ok(t.linked_task(
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tracing::Span::current(),
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detect_protocol(t.actor.clone(), stream, gateway, addr))));
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detect_protocol(t.facet.clone(), stream, gateway, addr))));
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}
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}
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|
@ -261,19 +257,16 @@ async fn run_unix_listener(
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let (stream, _addr) = listener.accept().await?;
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let peer = stream.peer_cred()?;
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let gateway = Arc::clone(&gateway);
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let ac = Actor::new();
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ac.boot(syndicate::name!(parent: None,
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"unix",
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pid = debug(peer.pid().unwrap_or(-1)),
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uid = peer.uid()),
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move |t| Ok(t.state.linked_task(
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Actor::new().boot(
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syndicate::name!(parent: None, "unix", pid = debug(peer.pid().unwrap_or(-1)), uid = peer.uid()),
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|t| Ok(t.linked_task(
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||||
tracing::Span::current(),
|
||||
{
|
||||
let ac = t.actor.clone();
|
||||
let facet = t.facet.clone();
|
||||
async move {
|
||||
tracing::info!(protocol = display("unix"));
|
||||
let (i, o) = stream.into_split();
|
||||
run_connection(ac,
|
||||
run_connection(facet,
|
||||
relay::Input::Bytes(Box::pin(i)),
|
||||
relay::Output::Bytes(Box::pin(o)),
|
||||
gateway)
|
||||
|
@ -342,7 +335,7 @@ fn handle_resolve(
|
|||
}
|
||||
}
|
||||
})
|
||||
.create_cap(t.state);
|
||||
.create_cap(t);
|
||||
if let Some(oh) = ds.assert(t, &dataspace::Observe {
|
||||
// TODO: codegen plugin to generate pattern constructors
|
||||
pattern: syndicate_macros::pattern!("<bind =queried_oid $ $>"),
|
||||
|
|
|
@ -7,6 +7,7 @@ use std::sync::atomic::Ordering;
|
|||
use std::time::Instant;
|
||||
|
||||
use syndicate::actor::*;
|
||||
use syndicate::during::entity;
|
||||
use syndicate::dataspace::Dataspace;
|
||||
use syndicate::schemas::dataspace::Observe;
|
||||
use syndicate::schemas::dataspace_patterns as p;
|
||||
|
@ -30,7 +31,7 @@ struct ShutdownEntity;
|
|||
|
||||
impl Entity<AnyValue> for ShutdownEntity {
|
||||
fn message(&mut self, t: &mut Activation, _m: AnyValue) -> ActorResult {
|
||||
t.state.shutdown();
|
||||
t.stop();
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
@ -53,20 +54,22 @@ pub fn bench_pub(c: &mut Criterion) {
|
|||
let start = Instant::now();
|
||||
rt.block_on(async move {
|
||||
Actor::new().boot(syndicate::name!("dataspace"), move |t| {
|
||||
let ds = t.state.create(Dataspace::new());
|
||||
let shutdown = t.state.create(ShutdownEntity);
|
||||
let ds = t.create(Dataspace::new());
|
||||
let shutdown = t.create(ShutdownEntity);
|
||||
let account = Account::new(syndicate::name!("sender-account"));
|
||||
t.state.linked_task(syndicate::name!("sender"), async move {
|
||||
t.linked_task(syndicate::name!("sender"), async move {
|
||||
for _ in 0..iters {
|
||||
let ds = Arc::clone(&ds);
|
||||
external_event(&Arc::clone(&ds.mailbox), &account, Box::new(
|
||||
move |t| ds.with_entity(
|
||||
|e| e.message(t, says(AnyValue::new("bench_pub"),
|
||||
move |t| t.with_entity(
|
||||
&ds,
|
||||
|t, e| e.message(t, says(AnyValue::new("bench_pub"),
|
||||
Value::ByteString(vec![]).wrap())))))?
|
||||
}
|
||||
external_event(&Arc::clone(&shutdown.mailbox), &account, Box::new(
|
||||
move |t| shutdown.with_entity(
|
||||
|e| e.message(t, AnyValue::new(true)))))?;
|
||||
move |t| t.with_entity(
|
||||
&shutdown,
|
||||
|t, e| e.message(t, AnyValue::new(true)))))?;
|
||||
Ok(())
|
||||
});
|
||||
Ok(())
|
||||
|
@ -80,13 +83,33 @@ pub fn bench_pub(c: &mut Criterion) {
|
|||
b.iter_custom(|iters| {
|
||||
let start = Instant::now();
|
||||
rt.block_on(async move {
|
||||
let ds = Cap::new(
|
||||
&Actor::create_and_start(syndicate::name!("dataspace"), Dataspace::new()));
|
||||
let turn_count = Arc::new(AtomicU64::new(0));
|
||||
|
||||
{
|
||||
Actor::new().boot(syndicate::name!("dataspace"), {
|
||||
let iters = iters.clone();
|
||||
let turn_count = Arc::clone(&turn_count);
|
||||
|
||||
move |t| {
|
||||
let ds = Cap::new(&t.create(Dataspace::new()));
|
||||
|
||||
let shutdown = entity(())
|
||||
.on_asserted(|_, _, _| {
|
||||
Ok(Some(Box::new(|_, t| {
|
||||
t.stop();
|
||||
Ok(())
|
||||
})))
|
||||
})
|
||||
.create_cap(t);
|
||||
|
||||
ds.assert(t, &Observe {
|
||||
pattern: p::Pattern::DBind(Box::new(p::DBind {
|
||||
pattern: p::Pattern::DLit(Box::new(p::DLit {
|
||||
value: Value::symbol("consumer").wrap(),
|
||||
})),
|
||||
})),
|
||||
observer: shutdown,
|
||||
});
|
||||
|
||||
Actor::new().boot(syndicate::name!("consumer"), move |t| {
|
||||
struct Receiver(Arc<AtomicU64>);
|
||||
impl Entity<AnyValue> for Receiver {
|
||||
|
@ -96,9 +119,10 @@ pub fn bench_pub(c: &mut Criterion) {
|
|||
}
|
||||
}
|
||||
|
||||
let shutdown = Cap::new(&t.state.create(ShutdownEntity));
|
||||
let receiver = Cap::new(&t.state.create(Receiver(Arc::clone(&turn_count))));
|
||||
let shutdown = Cap::new(&t.create(ShutdownEntity));
|
||||
let receiver = Cap::new(&t.create(Receiver(Arc::clone(&turn_count))));
|
||||
|
||||
ds.assert(t, Value::<AnyValue, _>::symbol("consumer").wrap());
|
||||
ds.assert(t, &Observe {
|
||||
pattern: p::Pattern::DCompound(Box::new(p::DCompound::Rec {
|
||||
ctor: Box::new(p::CRec {
|
||||
|
@ -124,26 +148,31 @@ pub fn bench_pub(c: &mut Criterion) {
|
|||
})),
|
||||
observer: shutdown,
|
||||
});
|
||||
|
||||
let account = Arc::clone(t.account());
|
||||
t.state.linked_task(syndicate::name!("sender"), async move {
|
||||
for _ in 0..iters {
|
||||
t.linked_task(syndicate::name!("sender"), async move {
|
||||
for _i in 0..iters {
|
||||
let ds = Arc::clone(&ds);
|
||||
external_event(&Arc::clone(&ds.underlying.mailbox), &account, Box::new(
|
||||
move |t| ds.underlying.with_entity(
|
||||
|e| e.message(t, says(AnyValue::new("bench_pub"),
|
||||
move |t| t.with_entity(
|
||||
&ds.underlying,
|
||||
|t, e| e.message(t, says(AnyValue::new("bench_pub"),
|
||||
Value::ByteString(vec![]).wrap())))))?
|
||||
}
|
||||
{
|
||||
let ds = Arc::clone(&ds);
|
||||
external_event(&Arc::clone(&ds.underlying.mailbox), &account, Box::new(
|
||||
move |t| ds.underlying.with_entity(
|
||||
|e| e.message(t, AnyValue::new(true)))))?;
|
||||
move |t| t.with_entity(
|
||||
&ds.underlying,
|
||||
|t, e| e.message(t, AnyValue::new(true)))))?;
|
||||
}
|
||||
Ok(())
|
||||
});
|
||||
Ok(())
|
||||
}).await.unwrap().unwrap();
|
||||
});
|
||||
Ok(())
|
||||
}
|
||||
}).await.unwrap().unwrap();
|
||||
|
||||
let actual_turns = turn_count.load(Ordering::SeqCst);
|
||||
if actual_turns != iters {
|
||||
|
|
|
@ -2,10 +2,12 @@ The [actor][crate::actor] module is the core of the Syndicated Actor model imple
|
|||
|
||||
Central features:
|
||||
|
||||
- trait [`Entity`], the core protocol that must be implemented by
|
||||
every object
|
||||
- struct [`Activation`], the API for programming a Syndicated Actor
|
||||
object
|
||||
- trait [`Entity`], the core protocol that must be implemented by
|
||||
every object
|
||||
- struct [`Facet`], a node in the tree of nested conversations that
|
||||
an Actor is participating in
|
||||
- type [`AnyValue`], the type of messages and assertions that can be
|
||||
exchanged among distributed objects, including via
|
||||
[dataspace][crate::dataspace]
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
# Flow control
|
||||
|
||||
- Account, LoanedItem
|
||||
- start_debt_reporter
|
||||
- [Account]
|
||||
- [LoanedItem]
|
||||
|
|
|
@ -1,3 +1,3 @@
|
|||
# Linked Tasks
|
||||
|
||||
- linked_task
|
||||
- [Activation::linked_task]
|
||||
|
|
|
@ -1,18 +1,23 @@
|
|||
# What is an Actor?
|
||||
|
||||
A [Syndicated Actor][Actor] is a collection of stateful
|
||||
[Entities][Entity]. In the taxonomy of De Koster *et al.*
|
||||
([2016](#DeKoster2016)), the Syndicated Actor model is a
|
||||
*Communicating Event-Loop* actor model, similar to that offered by the
|
||||
E programming language
|
||||
[Entities][Entity], organised in a tree of [Facets][Facet], with each
|
||||
facet representing a
|
||||
[(sub)conversation](https://syndicate-lang.org/about/#conversational-concurrency-1)
|
||||
that the Actor is engaged in. Each entity belongs to exactly one
|
||||
facet; each facet has exactly one parent and zero or more children;
|
||||
each actor has exactly one associated root facet. When a facet is its
|
||||
actor's root facet, its parent is the actor itself; otherwise, its
|
||||
parent is always another facet.
|
||||
|
||||
In the taxonomy of De Koster *et al.* ([2016](#DeKoster2016)), the
|
||||
Syndicated Actor model is a *Communicating Event-Loop* actor model,
|
||||
similar to that offered by the E programming language
|
||||
([Wikipedia](https://en.wikipedia.org/wiki/E_(programming_language));
|
||||
[erights.org](http://erights.org/)).
|
||||
|
||||
**Note.** In the full Syndicated Actor model, entities are arranged in a tree of
|
||||
*facets*; the current Rust implementation does not yet include support
|
||||
for facets.
|
||||
|
||||
- Actor, ActorRef, ActorState, Mailbox
|
||||
- [Actor], [ActorRef], [Facet], [FacetRef], [ActorState], [Mailbox],
|
||||
[Activation]
|
||||
|
||||
**References.**
|
||||
|
||||
|
|
|
@ -16,12 +16,14 @@ use preserves::value::Domain;
|
|||
use preserves::value::IOValue;
|
||||
use preserves::value::Map;
|
||||
use preserves::value::NestedValue;
|
||||
use preserves::value::Set;
|
||||
use preserves_schema::support::ParseError;
|
||||
|
||||
use std::boxed::Box;
|
||||
use std::collections::hash_map::HashMap;
|
||||
use std::convert::TryFrom;
|
||||
use std::convert::TryInto;
|
||||
use std::num::NonZeroU64;
|
||||
use std::sync::Arc;
|
||||
use std::sync::Mutex;
|
||||
use std::sync::RwLock;
|
||||
|
@ -50,6 +52,9 @@ pub type AnyValue = super::schemas::internal_protocol::_Any;
|
|||
/// The type of process-unique actor IDs.
|
||||
pub type ActorId = u64;
|
||||
|
||||
/// The type of process-unique facet IDs.
|
||||
pub type FacetId = NonZeroU64;
|
||||
|
||||
/// The type of process-unique assertion handles.
|
||||
///
|
||||
/// Used both as a reference to [retract][Entity::retract]
|
||||
|
@ -60,8 +65,8 @@ pub type Handle = u64;
|
|||
/// Responses to events must have type `ActorResult`.
|
||||
pub type ActorResult = Result<(), Error>;
|
||||
|
||||
/// Methods [`Actor::boot`] and [`Actor::start`] return an
|
||||
/// `ActorHandle`, representing the actor's mainloop task.
|
||||
/// The [`Actor::boot`] method returns an `ActorHandle`, representing
|
||||
/// the actor's mainloop task.
|
||||
pub type ActorHandle = tokio::task::JoinHandle<ActorResult>;
|
||||
|
||||
/// A small protocol for indicating successful synchronisation with
|
||||
|
@ -193,17 +198,22 @@ pub type PendingEventQueue = Vec<Action>;
|
|||
/// The main API for programming Syndicated Actor objects.
|
||||
///
|
||||
/// Through `Activation`s, programs can access the state of their
|
||||
/// animating [`RunningActor`].
|
||||
/// animating [`RunningActor`] and their active [`Facet`].
|
||||
///
|
||||
/// Usually, an `Activation` will be supplied to code that needs one; but when non-Actor code
|
||||
/// (such as a [linked task][crate::actor#linked-tasks]) needs to enter an Actor's execution
|
||||
/// context, use [`FacetRef::activate`] to construct one.
|
||||
///
|
||||
/// Many actions that an entity can perform are methods directly on
|
||||
/// `Activation`, but methods on the [`RunningActor`] and [`ActorRef`]
|
||||
/// `Activation`, but methods on the [`RunningActor`] and [`FacetRef`]
|
||||
/// values contained in an `Activation` are also sometimes useful.
|
||||
///
|
||||
/// This is what other implementations call a "Turn", renamed here to
|
||||
/// avoid conflicts with [`crate::schemas::internal_protocol::Turn`].
|
||||
pub struct Activation<'activation> {
|
||||
/// A reference to the implementation-side of the currently active [`Actor`].
|
||||
pub actor: ActorRef,
|
||||
/// A reference to the currently active [`Facet`] and the implementation-side state of its
|
||||
/// [`Actor`].
|
||||
pub facet: FacetRef,
|
||||
/// A reference to the current state of the active [`Actor`].
|
||||
pub state: &'activation mut RunningActor,
|
||||
pending: EventBuffer,
|
||||
|
@ -272,6 +282,14 @@ pub struct ActorRef {
|
|||
state: Arc<Mutex<ActorState>>,
|
||||
}
|
||||
|
||||
/// A combination of an [`ActorRef`] with a [`FacetId`], acting as a capability to enter the
|
||||
/// execution context of a facet from a linked task.
|
||||
#[derive(Clone)]
|
||||
pub struct FacetRef {
|
||||
pub actor: ActorRef,
|
||||
pub facet_id: FacetId,
|
||||
}
|
||||
|
||||
/// The state of an actor: either `Running` or `Terminated`.
|
||||
pub enum ActorState {
|
||||
/// A non-terminated actor has an associated [`RunningActor`] state record.
|
||||
|
@ -290,9 +308,40 @@ pub struct RunningActor {
|
|||
pub actor_id: ActorId,
|
||||
tx: UnboundedSender<SystemMessage>,
|
||||
mailbox: Weak<Mailbox>,
|
||||
cleanup_actions: CleanupActions,
|
||||
linked_tasks: Map<u64, CancellationToken>,
|
||||
exit_hooks: Vec<Box<dyn Send + FnOnce(&mut Activation, &Arc<ActorResult>) -> ActorResult>>,
|
||||
facet_nodes: Map<FacetId, Facet>,
|
||||
facet_children: Map<FacetId, Set<FacetId>>,
|
||||
root: FacetId,
|
||||
}
|
||||
|
||||
/// State associated with each facet in an [`Actor`]'s facet tree.
|
||||
///
|
||||
/// # Inert facets
|
||||
///
|
||||
/// A facet is considered *inert* if:
|
||||
///
|
||||
/// 1. it has no child facets;
|
||||
/// 2. it has no cleanup actions (that is, no assertions placed by any of its entities);
|
||||
/// 3. it has no linked tasks; and
|
||||
/// 4. it has no "inert check preventers" (see [Activation::prevent_inert_check]).
|
||||
///
|
||||
/// If a facet is created and is inert at the moment that its `boot` function returns, it is
|
||||
/// automatically terminated.
|
||||
///
|
||||
/// When a facet is terminated, if its parent facet is inert, the parent is terminated.
|
||||
///
|
||||
/// If the root facet in an actor is terminated, the entire actor is terminated (with exit
|
||||
/// status `Ok(())`).
|
||||
///
|
||||
pub struct Facet {
|
||||
/// The ID of the facet.
|
||||
pub facet_id: FacetId,
|
||||
/// The ID of the facet's parent facet, if any; if None, this facet is the `Actor`'s root facet.
|
||||
pub parent_facet_id: Option<FacetId>,
|
||||
cleanup_actions: CleanupActions,
|
||||
stop_actions: Vec<Action>,
|
||||
linked_tasks: Map<u64, CancellationToken>,
|
||||
inert_check_preventers: Arc<AtomicU64>,
|
||||
}
|
||||
|
||||
/// A reference to an object that expects messages/assertions of type
|
||||
|
@ -303,6 +352,8 @@ pub struct RunningActor {
|
|||
pub struct Ref<M> {
|
||||
/// Mailbox of the actor owning the referenced entity.
|
||||
pub mailbox: Arc<Mailbox>,
|
||||
/// ID of the facet (within the actor) owning the referenced entity.
|
||||
pub facet_id: FacetId,
|
||||
/// Mutex owning and guarding the state backing the referenced entity.
|
||||
pub target: Mutex<Option<Box<dyn Entity<M>>>>,
|
||||
}
|
||||
|
@ -352,15 +403,22 @@ pub fn next_actor_id() -> ActorId {
|
|||
NEXT_ACTOR_ID.fetch_add(BUMP_AMOUNT.into(), Ordering::Relaxed)
|
||||
}
|
||||
|
||||
static NEXT_HANDLE: AtomicU64 = AtomicU64::new(2);
|
||||
static NEXT_FACET_ID: AtomicU64 = AtomicU64::new(2);
|
||||
#[doc(hidden)]
|
||||
pub fn next_facet_id() -> FacetId {
|
||||
FacetId::new(NEXT_FACET_ID.fetch_add(BUMP_AMOUNT.into(), Ordering::Relaxed))
|
||||
.expect("Internal error: Attempt to allocate FacetId of zero. Too many FacetIds allocated. Restart the process.")
|
||||
}
|
||||
|
||||
static NEXT_HANDLE: AtomicU64 = AtomicU64::new(3);
|
||||
/// Allocate a process-unique `Handle`.
|
||||
pub fn next_handle() -> Handle {
|
||||
NEXT_HANDLE.fetch_add(BUMP_AMOUNT.into(), Ordering::Relaxed)
|
||||
}
|
||||
|
||||
static NEXT_ACCOUNT_ID: AtomicU64 = AtomicU64::new(3);
|
||||
static NEXT_ACCOUNT_ID: AtomicU64 = AtomicU64::new(4);
|
||||
|
||||
static NEXT_TASK_ID: AtomicU64 = AtomicU64::new(4);
|
||||
static NEXT_TASK_ID: AtomicU64 = AtomicU64::new(5);
|
||||
|
||||
preserves_schema::support::lazy_static! {
|
||||
#[doc(hidden)]
|
||||
|
@ -394,29 +452,20 @@ impl From<&Synced> for AnyValue {
|
|||
}
|
||||
}
|
||||
|
||||
impl<'activation> Activation<'activation> {
|
||||
fn make(actor: &ActorRef, account: Arc<Account>, state: &'activation mut RunningActor) -> Self {
|
||||
Activation {
|
||||
actor: actor.clone(),
|
||||
state,
|
||||
pending: EventBuffer::new(account),
|
||||
}
|
||||
}
|
||||
|
||||
/// Constructs and executes `f` in a new "turn" for `actor`. If
|
||||
/// `f` returns `Ok(())`, [commits the turn][Self::deliver] and
|
||||
/// performs the buffered actions; otherwise, [abandons the
|
||||
/// turn][Self::clear] and discards the buffered actions.
|
||||
impl FacetRef {
|
||||
/// Executes `f` in a new "[turn][Activation]" for `actor`. If `f` returns `Ok(())`,
|
||||
/// [commits the turn][Activation::deliver] and performs the buffered actions; otherwise,
|
||||
/// [abandons the turn][Activation::clear] and discards the buffered actions.
|
||||
///
|
||||
/// Bills any activity to `account`.
|
||||
pub fn for_actor<F>(
|
||||
actor: &ActorRef,
|
||||
pub fn activate<F>(
|
||||
&self,
|
||||
account: Arc<Account>,
|
||||
f: F,
|
||||
) -> ActorResult where
|
||||
F: FnOnce(&mut Activation) -> ActorResult,
|
||||
{
|
||||
match Self::for_actor_exit(actor, account, |t| match f(t) {
|
||||
match self.activate_exit(account, |t| match f(t) {
|
||||
Ok(()) => None,
|
||||
Err(e) => Some(Err(e)),
|
||||
}) {
|
||||
|
@ -425,28 +474,26 @@ impl<'activation> Activation<'activation> {
|
|||
}
|
||||
}
|
||||
|
||||
/// Constructs and executes `f` in a new "turn" for `actor`. If
|
||||
/// `f` returns `Some(exit_status)`, terminates `actor` with that
|
||||
/// `exit_status`. Otherwise, if `f` returns `None`, leaves
|
||||
/// `actor` in runnable state. [Commits buffered
|
||||
/// actions][Self::deliver] unless `actor` terminates with an
|
||||
/// `Err` status.
|
||||
/// Executes `f` in a new "[turn][Activation]" for `actor`. If `f` returns
|
||||
/// `Some(exit_status)`, terminates `actor` with that `exit_status`. Otherwise, if `f`
|
||||
/// returns `None`, leaves `actor` in runnable state. [Commits buffered
|
||||
/// actions][Activation::deliver] unless `actor` terminates with an `Err` status.
|
||||
///
|
||||
/// Bills any activity to `account`.
|
||||
pub fn for_actor_exit<F>(
|
||||
actor: &ActorRef,
|
||||
pub fn activate_exit<F>(
|
||||
&self,
|
||||
account: Arc<Account>,
|
||||
f: F,
|
||||
) -> Option<ActorResult> where
|
||||
F: FnOnce(&mut Activation) -> Option<ActorResult>,
|
||||
{
|
||||
match actor.state.lock() {
|
||||
match self.actor.state.lock() {
|
||||
Err(_) => panicked_err(),
|
||||
Ok(mut g) => match &mut *g {
|
||||
ActorState::Terminated { exit_status } =>
|
||||
Some((**exit_status).clone()),
|
||||
ActorState::Running(state) => {
|
||||
let mut activation = Activation::make(actor, account, state);
|
||||
let mut activation = Activation::make(self, account, state);
|
||||
match f(&mut activation) {
|
||||
None => None,
|
||||
Some(exit_status) => {
|
||||
|
@ -455,12 +502,19 @@ impl<'activation> Activation<'activation> {
|
|||
}
|
||||
drop(activation);
|
||||
let exit_status = Arc::new(exit_status);
|
||||
let mut t = Activation::make(actor, Account::new(crate::name!("shutdown")), state);
|
||||
let mut t = Activation::make(&self.actor.facet_ref(state.root),
|
||||
Account::new(crate::name!("shutdown")),
|
||||
state);
|
||||
for action in std::mem::take(&mut t.state.exit_hooks) {
|
||||
if let Err(err) = action(&mut t, &exit_status) {
|
||||
tracing::error!(err = debug(err), "error in exit hook");
|
||||
}
|
||||
}
|
||||
if let Err(err) = t._terminate_facet(t.state.root, false) {
|
||||
// This can only occur as the result of an internal error in this file's code.
|
||||
tracing::error!(err = debug(err), "unexpected error from disorderly terminate_facet");
|
||||
panic!("Unexpected error result from disorderly terminate_facet");
|
||||
}
|
||||
*g = ActorState::Terminated {
|
||||
exit_status: Arc::clone(&exit_status),
|
||||
};
|
||||
|
@ -471,29 +525,72 @@ impl<'activation> Activation<'activation> {
|
|||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'activation> Activation<'activation> {
|
||||
fn make(
|
||||
facet: &FacetRef,
|
||||
account: Arc<Account>,
|
||||
state: &'activation mut RunningActor,
|
||||
) -> Self {
|
||||
Activation {
|
||||
facet: facet.clone(),
|
||||
state,
|
||||
pending: EventBuffer::new(account),
|
||||
}
|
||||
}
|
||||
|
||||
fn immediate_oid<M>(&self, r: &Arc<Ref<M>>) {
|
||||
if r.mailbox.actor_id != self.actor.actor_id {
|
||||
if r.mailbox.actor_id != self.facet.actor.actor_id {
|
||||
panic!("Cannot use for_myself to send to remote peers");
|
||||
}
|
||||
}
|
||||
|
||||
fn with_facet<F>(&mut self, check_existence: bool, facet_id: FacetId, f: F) -> ActorResult
|
||||
where
|
||||
F: FnOnce(&mut Activation) -> ActorResult,
|
||||
{
|
||||
if !check_existence || self.state.facet_nodes.contains_key(&facet_id) {
|
||||
let old_facet_id = self.facet.facet_id;
|
||||
self.facet.facet_id = facet_id;
|
||||
let result = f(self);
|
||||
self.facet.facet_id = old_facet_id;
|
||||
result
|
||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[doc(hidden)]
|
||||
pub fn with_entity<M, F>(&mut self, r: &Arc<Ref<M>>, f: F) -> ActorResult where
|
||||
F: FnOnce(&mut Activation, &mut dyn Entity<M>) -> ActorResult
|
||||
{
|
||||
self.with_facet(true, r.facet_id, |t| r.internal_with_entity(|e| f(t, e)))
|
||||
}
|
||||
|
||||
fn active_facet<'a>(&'a mut self) -> Option<&'a mut Facet> {
|
||||
self.state.get_facet(self.facet.facet_id)
|
||||
}
|
||||
|
||||
/// Core API: assert `a` at recipient `r`.
|
||||
///
|
||||
/// Returns the [`Handle`] for the new assertion.
|
||||
pub fn assert<M: 'static + Send>(&mut self, r: &Arc<Ref<M>>, a: M) -> Handle {
|
||||
let handle = next_handle();
|
||||
if let Some(f) = self.active_facet() {
|
||||
{
|
||||
let r = Arc::clone(r);
|
||||
f.cleanup_actions.insert(
|
||||
handle,
|
||||
CleanupAction::ForAnother(Arc::clone(&r.mailbox), Box::new(
|
||||
move |t| t.with_entity(&r, |t, e| e.retract(t, handle)))));
|
||||
}
|
||||
drop(f);
|
||||
{
|
||||
let r = Arc::clone(r);
|
||||
self.pending.queue_for(&r).push(Box::new(
|
||||
move |t| r.with_entity(|e| e.assert(t, a, handle))));
|
||||
move |t| t.with_entity(&r, |t, e| e.assert(t, a, handle))));
|
||||
}
|
||||
{
|
||||
let r = Arc::clone(r);
|
||||
self.state.cleanup_actions.insert(
|
||||
handle,
|
||||
CleanupAction::ForAnother(Arc::clone(&r.mailbox), Box::new(
|
||||
move |t| r.with_entity(|e| e.retract(t, handle)))));
|
||||
}
|
||||
handle
|
||||
}
|
||||
|
@ -515,33 +612,38 @@ impl<'activation> Activation<'activation> {
|
|||
pub fn assert_for_myself<M: 'static + Send>(&mut self, r: &Arc<Ref<M>>, a: M) -> Handle {
|
||||
self.immediate_oid(r);
|
||||
let handle = next_handle();
|
||||
if let Some(f) = self.active_facet() {
|
||||
{
|
||||
let r = Arc::clone(r);
|
||||
f.cleanup_actions.insert(
|
||||
handle,
|
||||
CleanupAction::ForMyself(Box::new(
|
||||
move |t| t.with_entity(&r, |t, e| e.retract(t, handle)))));
|
||||
}
|
||||
drop(f);
|
||||
{
|
||||
let r = Arc::clone(r);
|
||||
self.pending.for_myself.push(Box::new(
|
||||
move |t| r.with_entity(|e| e.assert(t, a, handle))));
|
||||
move |t| t.with_entity(&r, |t, e| e.assert(t, a, handle))));
|
||||
}
|
||||
{
|
||||
let r = Arc::clone(r);
|
||||
self.state.cleanup_actions.insert(
|
||||
handle,
|
||||
CleanupAction::ForMyself(Box::new(
|
||||
move |t| r.with_entity(|e| e.retract(t, handle)))));
|
||||
}
|
||||
handle
|
||||
}
|
||||
|
||||
/// Core API: retract a previously-established assertion.
|
||||
pub fn retract(&mut self, handle: Handle) {
|
||||
if let Some(d) = self.state.cleanup_actions.remove(&handle) {
|
||||
if let Some(f) = self.active_facet() {
|
||||
if let Some(d) = f.cleanup_actions.remove(&handle) {
|
||||
self.pending.execute_cleanup_action(d)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Core API: send message `m` to recipient `r`.
|
||||
pub fn message<M: 'static + Send>(&mut self, r: &Arc<Ref<M>>, m: M) {
|
||||
let r = Arc::clone(r);
|
||||
self.pending.queue_for(&r).push(Box::new(
|
||||
move |t| r.with_entity(|e| e.message(t, m))))
|
||||
move |t| t.with_entity(&r, |t, e| e.message(t, m))))
|
||||
}
|
||||
|
||||
/// Core API: send message `m` to recipient `r`, which must be a
|
||||
|
@ -558,7 +660,7 @@ impl<'activation> Activation<'activation> {
|
|||
self.immediate_oid(r);
|
||||
let r = Arc::clone(r);
|
||||
self.pending.for_myself.push(Box::new(
|
||||
move |t| r.with_entity(|e| e.message(t, m))))
|
||||
move |t| t.with_entity(&r, |t, e| e.message(t, m))))
|
||||
}
|
||||
|
||||
/// Core API: begins a synchronisation with `r`.
|
||||
|
@ -569,7 +671,7 @@ impl<'activation> Activation<'activation> {
|
|||
pub fn sync<M: 'static + Send>(&mut self, r: &Arc<Ref<M>>, peer: Arc<Ref<Synced>>) {
|
||||
let r = Arc::clone(r);
|
||||
self.pending.queue_for(&r).push(Box::new(
|
||||
move |t| r.with_entity(|e| e.sync(t, peer))))
|
||||
move |t| t.with_entity(&r, |t, e| e.sync(t, peer))))
|
||||
}
|
||||
|
||||
/// Retrieve the [`Account`] against which actions are recorded.
|
||||
|
@ -596,6 +698,182 @@ impl<'activation> Activation<'activation> {
|
|||
pub fn deliver(&mut self) {
|
||||
self.pending.deliver();
|
||||
}
|
||||
|
||||
/// Construct an entity with behaviour [`InertEntity`] within the active facet.
|
||||
pub fn inert_entity<M>(&mut self) -> Arc<Ref<M>> {
|
||||
self.create(InertEntity)
|
||||
}
|
||||
|
||||
/// Construct an entity with behaviour `e` within the active facet.
|
||||
pub fn create<M, E: Entity<M> + Send + 'static>(&mut self, e: E) -> Arc<Ref<M>> {
|
||||
let r = self.create_inert();
|
||||
r.become_entity(e);
|
||||
r
|
||||
}
|
||||
|
||||
/// Construct an entity (within the active facet) whose behaviour will be specified later
|
||||
/// via [`become_entity`][Ref::become_entity].
|
||||
pub fn create_inert<M>(&mut self) -> Arc<Ref<M>> {
|
||||
Arc::new(Ref {
|
||||
mailbox: self.state.mailbox(),
|
||||
facet_id: self.facet.facet_id,
|
||||
target: Mutex::new(None),
|
||||
})
|
||||
}
|
||||
|
||||
/// Start a new [linked task][crate::actor#linked-tasks] attached to the active facet. The
|
||||
/// task will execute the future "`boot`" to completion unless it is cancelled first (by
|
||||
/// e.g. termination of the owning facet or crashing of the owning actor). Uses `name` for
|
||||
/// log messages emitted by the task.
|
||||
pub fn linked_task<F: 'static + Send + futures::Future<Output = ActorResult>>(
|
||||
&mut self,
|
||||
name: tracing::Span,
|
||||
boot: F,
|
||||
) {
|
||||
let mailbox = self.state.mailbox();
|
||||
if let Some(f) = self.active_facet() {
|
||||
let token = CancellationToken::new();
|
||||
let task_id = NEXT_TASK_ID.fetch_add(1, Ordering::Relaxed);
|
||||
name.record("task_id", &task_id);
|
||||
{
|
||||
let token = token.clone();
|
||||
tokio::spawn(async move {
|
||||
tracing::trace!(task_id, "linked task start");
|
||||
select! {
|
||||
_ = token.cancelled() => {
|
||||
tracing::trace!(task_id, "linked task cancelled");
|
||||
Ok(())
|
||||
}
|
||||
result = boot => {
|
||||
match &result {
|
||||
Ok(()) => {
|
||||
tracing::trace!(task_id, "linked task normal stop");
|
||||
()
|
||||
}
|
||||
Err(e) => {
|
||||
tracing::error!(task_id, "linked task error: {}", e);
|
||||
let _ = mailbox.tx.send(SystemMessage::Crash(e.clone()));
|
||||
()
|
||||
}
|
||||
}
|
||||
result
|
||||
}
|
||||
}
|
||||
}.instrument(name));
|
||||
}
|
||||
f.linked_tasks.insert(task_id, token);
|
||||
}
|
||||
}
|
||||
|
||||
/// Create a new subfacet of the currently-active facet. Runs `boot` in the new facet's
|
||||
/// context. If `boot` returns leaving the new facet [inert][Facet#inert-facets],
|
||||
pub fn facet<F: 'static + Send + FnOnce(&mut Activation) -> ActorResult>(
|
||||
&mut self,
|
||||
boot: F,
|
||||
) -> Result<FacetId, Error> {
|
||||
let f = Facet::new(Some(self.facet.facet_id));
|
||||
let facet_id = f.facet_id;
|
||||
self.state.facet_nodes.insert(facet_id, f);
|
||||
self.state.facet_children.entry(self.facet.facet_id).or_default().insert(facet_id);
|
||||
self.with_facet(true /* TODO: tiny optimisation: "false" would be safe here */, facet_id, move |t| {
|
||||
boot(t)?;
|
||||
t.stop_if_inert();
|
||||
Ok(())
|
||||
})?;
|
||||
Ok(facet_id)
|
||||
}
|
||||
|
||||
/// Useful during facet (and actor) startup, in some situations: when a facet `boot`
|
||||
/// procedure would return while the facet is inert, but the facet should survive until
|
||||
/// some subsequent time, call `prevent_inert_check` to increment a counter that prevents
|
||||
/// inertness-checks from succeeding on the active facet.
|
||||
///
|
||||
/// The result of `prevent_inert_check` is a function which, when called, decrements the
|
||||
/// counter again. After the counter has been decremented, any subsequent inertness checks
|
||||
/// will no longer be artificially forced to fail.
|
||||
///
|
||||
/// An example of when you might want this: creating an actor having only a single
|
||||
/// Dataspace entity within it, then using the Dataspace from other actors. At the start of
|
||||
/// its life, the Dataspace actor will have no outbound assertions, no child facets, and no
|
||||
/// linked tasks, so the only way to prevent it from being prematurely garbage collected is
|
||||
/// to use `prevent_inert_check` in its boot function.
|
||||
pub fn prevent_inert_check(&mut self) -> Box<dyn FnOnce()> {
|
||||
if let Some(f) = self.active_facet() {
|
||||
Box::new(f.prevent_inert_check())
|
||||
} else {
|
||||
Box::new(|| ())
|
||||
}
|
||||
}
|
||||
|
||||
/// Arranges for the [`Facet`] named by `facet_id` to be stopped cleanly when `self`
|
||||
/// commits. If `continuation` is supplied, the facet to be stopped hasn't been stopped
|
||||
/// yet, none of the shutdown handlers yields an error, and the facet's parent facet is
|
||||
/// alive, executes `continuation` in the parent facet's context.
|
||||
pub fn stop_facet(&mut self, facet_id: FacetId, continuation: Option<Action>) {
|
||||
let mailbox = self.state.mailbox();
|
||||
let maybe_parent_id = self.active_facet().and_then(|f| f.parent_facet_id);
|
||||
self.pending.queue_for_mailbox(&mailbox).push(Box::new(
|
||||
move |t| {
|
||||
t._terminate_facet(facet_id, true)?;
|
||||
if let Some(k) = continuation {
|
||||
if let Some(parent_id) = maybe_parent_id {
|
||||
t.with_facet(true, parent_id, k)?;
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}));
|
||||
}
|
||||
|
||||
/// Arranges for the active facet to be stopped cleanly when `self` commits.
|
||||
///
|
||||
/// Equivalent to `self.stop_facet(self.facet_id.unwrap(), None)`.
|
||||
pub fn stop(&mut self) {
|
||||
self.stop_facet(self.facet.facet_id, None)
|
||||
}
|
||||
|
||||
fn stop_if_inert(&mut self) {
|
||||
if self.state.facet_exists_and_is_inert(self.facet.facet_id) {
|
||||
self.stop_facet(self.facet.facet_id, None);
|
||||
}
|
||||
}
|
||||
|
||||
fn _terminate_facet(&mut self, facet_id: FacetId, orderly: bool) -> ActorResult {
|
||||
if let Some(mut f) = self.state.facet_nodes.remove(&facet_id) {
|
||||
tracing::debug!("{} terminating {:?}",
|
||||
if orderly { "orderly" } else { "disorderly" },
|
||||
facet_id);
|
||||
if let Some(p) = f.parent_facet_id {
|
||||
self.state.facet_children.get_mut(&p).map(|children| children.remove(&facet_id));
|
||||
}
|
||||
self.with_facet(false, facet_id, |t| {
|
||||
if let Some(children) = t.state.facet_children.remove(&facet_id) {
|
||||
for child_id in children.into_iter() {
|
||||
t._terminate_facet(child_id, orderly)?;
|
||||
}
|
||||
}
|
||||
if orderly {
|
||||
for action in std::mem::take(&mut f.stop_actions) {
|
||||
action(t)?;
|
||||
}
|
||||
let parent_facet_id = f.parent_facet_id;
|
||||
// if !orderly, the drop will happen at the end of this function, but we
|
||||
// need it to happen right here so that child-facet cleanup-actions are
|
||||
// performed before parent-facet cleanup-actions.
|
||||
drop(f);
|
||||
if let Some(p) = parent_facet_id {
|
||||
if t.state.facet_exists_and_is_inert(p) {
|
||||
t._terminate_facet(p, true)?;
|
||||
}
|
||||
} else {
|
||||
t.state.shutdown();
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
})
|
||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl EventBuffer {
|
||||
|
@ -764,52 +1042,31 @@ impl Drop for Mailbox {
|
|||
}
|
||||
|
||||
impl Actor {
|
||||
/// Create a new actor. It still needs to be
|
||||
/// [`start`ed][Self::start]/[`boot`ed][Self::boot].
|
||||
/// Create a new actor. It still needs to be [`boot`ed][Self::boot].
|
||||
pub fn new() -> Self {
|
||||
let (tx, rx) = unbounded_channel();
|
||||
let actor_id = next_actor_id();
|
||||
let root = Facet::new(None);
|
||||
// tracing::trace!(id = actor_id, "Actor::new");
|
||||
let mut st = RunningActor {
|
||||
actor_id,
|
||||
tx,
|
||||
mailbox: Weak::new(),
|
||||
exit_hooks: Vec::new(),
|
||||
facet_nodes: Map::new(),
|
||||
facet_children: Map::new(),
|
||||
root: root.facet_id,
|
||||
};
|
||||
st.facet_nodes.insert(root.facet_id, root);
|
||||
Actor {
|
||||
rx,
|
||||
ac_ref: ActorRef {
|
||||
actor_id,
|
||||
state: Arc::new(Mutex::new(ActorState::Running(RunningActor {
|
||||
actor_id,
|
||||
tx,
|
||||
mailbox: Weak::new(),
|
||||
cleanup_actions: Map::new(),
|
||||
linked_tasks: Map::new(),
|
||||
exit_hooks: Vec::new(),
|
||||
}))),
|
||||
state: Arc::new(Mutex::new(ActorState::Running(st))),
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
/// Create and start a new actor to own entity `e`. Returns a
|
||||
/// `Ref` to the new entity. The `name` is used as context for any
|
||||
/// log messages emitted by the new actor.
|
||||
pub fn create_and_start<M, E: Entity<M> + Send + 'static>(
|
||||
name: tracing::Span,
|
||||
e: E,
|
||||
) -> Arc<Ref<M>> {
|
||||
let r = Self::create_and_start_inert(name);
|
||||
r.become_entity(e);
|
||||
r
|
||||
}
|
||||
|
||||
/// Create and start a new actor, returning a `Ref` to a fresh
|
||||
/// entity contained within it. Before using the `Ref`, its
|
||||
/// initialization must be completed by calling
|
||||
/// [`become_entity`][Ref::become_entity] on it. The `name` is
|
||||
/// used as context for any log messages emitted by the new actor.
|
||||
pub fn create_and_start_inert<M>(name: tracing::Span) -> Arc<Ref<M>> {
|
||||
let ac = Self::new();
|
||||
let r = ac.ac_ref.access(|s| s.unwrap().expect_running().create_inert());
|
||||
ac.start(name);
|
||||
r
|
||||
}
|
||||
|
||||
/// Start the actor's mainloop. Takes ownership of `self`. The
|
||||
/// `name` is used as context for any log messages emitted by the
|
||||
/// actor. The `boot` function is called in the actor's context,
|
||||
|
@ -822,7 +1079,11 @@ impl Actor {
|
|||
name.record("actor_id", &self.ac_ref.actor_id);
|
||||
tokio::spawn(async move {
|
||||
tracing::trace!("start");
|
||||
self.run(boot).await;
|
||||
self.run(|t| {
|
||||
boot(t)?;
|
||||
t.stop_if_inert();
|
||||
Ok(())
|
||||
}).await;
|
||||
let result = self.ac_ref.exit_status().expect("terminated");
|
||||
match &result {
|
||||
Ok(()) => tracing::trace!("normal stop"),
|
||||
|
@ -832,41 +1093,39 @@ impl Actor {
|
|||
}.instrument(name))
|
||||
}
|
||||
|
||||
/// Start the actor's mainloop. Takes ownership of `self`. The
|
||||
/// `name` is used as context for any log messages emitted by the
|
||||
/// actor. Delegates to [`boot`][Self::boot], with a no-op `boot`
|
||||
/// function.
|
||||
pub fn start(self, name: tracing::Span) -> ActorHandle {
|
||||
self.boot(name, |_ac| Ok(()))
|
||||
}
|
||||
|
||||
fn terminate(&mut self, result: ActorResult) {
|
||||
let _ = Activation::for_actor_exit(
|
||||
&self.ac_ref, Account::new(crate::name!("shutdown")), |_| Some(result));
|
||||
}
|
||||
|
||||
async fn run<F: 'static + Send + FnOnce(&mut Activation) -> ActorResult>(
|
||||
&mut self,
|
||||
boot: F,
|
||||
) -> () {
|
||||
if Activation::for_actor(&self.ac_ref, Account::new(crate::name!("boot")), boot).is_err() {
|
||||
let root = self.ac_ref.access(|s| match s.expect("New actor missing its state") {
|
||||
ActorState::Terminated { .. } => panic!("New actor unexpectedly in terminated state"),
|
||||
ActorState::Running(ra) => ra.root, // what a lot of work to get this one number
|
||||
});
|
||||
|
||||
let root_facet_ref = self.ac_ref.facet_ref(root);
|
||||
|
||||
let terminate = |result: ActorResult| {
|
||||
let _ = root_facet_ref.activate_exit(Account::new(crate::name!("shutdown")),
|
||||
|_| Some(result));
|
||||
};
|
||||
|
||||
if root_facet_ref.activate(Account::new(crate::name!("boot")), boot).is_err() {
|
||||
return;
|
||||
}
|
||||
|
||||
loop {
|
||||
match self.rx.recv().await {
|
||||
None => {
|
||||
return self.terminate(Err(error("Unexpected channel close", AnyValue::new(false))));
|
||||
return terminate(Err(error("Unexpected channel close", AnyValue::new(false))));
|
||||
}
|
||||
Some(m) => match m {
|
||||
SystemMessage::Release => {
|
||||
tracing::trace!("SystemMessage::Release");
|
||||
return self.terminate(Ok(()));
|
||||
return terminate(Ok(()));
|
||||
}
|
||||
SystemMessage::Turn(mut loaned_item) => {
|
||||
let mut actions = std::mem::take(&mut loaned_item.item);
|
||||
let r = Activation::for_actor(
|
||||
&self.ac_ref, Arc::clone(&loaned_item.account), |t| {
|
||||
let r = root_facet_ref.activate(Arc::clone(&loaned_item.account), |t| {
|
||||
loop {
|
||||
for action in actions.into_iter() { action(t)? }
|
||||
actions = std::mem::take(&mut t.pending.for_myself);
|
||||
|
@ -878,7 +1137,7 @@ impl Actor {
|
|||
}
|
||||
SystemMessage::Crash(e) => {
|
||||
tracing::trace!("SystemMessage::Crash({:?})", &e);
|
||||
return self.terminate(Err(e));
|
||||
return terminate(Err(e));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -886,6 +1145,34 @@ impl Actor {
|
|||
}
|
||||
}
|
||||
|
||||
impl Facet {
|
||||
fn new(parent_facet_id: Option<FacetId>) -> Self {
|
||||
Facet {
|
||||
facet_id: next_facet_id(),
|
||||
parent_facet_id,
|
||||
cleanup_actions: Map::new(),
|
||||
stop_actions: Vec::new(),
|
||||
linked_tasks: Map::new(),
|
||||
inert_check_preventers: Arc::new(AtomicU64::new(0)),
|
||||
}
|
||||
}
|
||||
|
||||
fn prevent_inert_check(&mut self) -> impl FnOnce() {
|
||||
let inert_check_preventers = Arc::clone(&self.inert_check_preventers);
|
||||
let armed = AtomicU64::new(1);
|
||||
inert_check_preventers.fetch_add(1, Ordering::Relaxed);
|
||||
move || {
|
||||
match armed.compare_exchange(1, 0, Ordering::SeqCst, Ordering::SeqCst) {
|
||||
Ok(_) => {
|
||||
inert_check_preventers.fetch_sub(1, Ordering::Relaxed);
|
||||
()
|
||||
}
|
||||
Err(_) => (),
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn panicked_err() -> Option<ActorResult> {
|
||||
Some(Err(error("Actor panicked", AnyValue::new(false))))
|
||||
}
|
||||
|
@ -913,13 +1200,11 @@ impl ActorRef {
|
|||
ActorState::Terminated { exit_status } => Some((**exit_status).clone()),
|
||||
}))
|
||||
}
|
||||
}
|
||||
|
||||
impl ActorState {
|
||||
fn expect_running(&mut self) -> &mut RunningActor {
|
||||
match self {
|
||||
ActorState::Terminated { .. } => panic!("Expected a running actor"),
|
||||
ActorState::Running(r) => r,
|
||||
fn facet_ref(&self, facet_id: FacetId) -> FacetRef {
|
||||
FacetRef {
|
||||
actor: self.clone(),
|
||||
facet_id,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -946,77 +1231,30 @@ impl RunningActor {
|
|||
}
|
||||
}
|
||||
|
||||
/// Construct an entity with behaviour [`InertEntity`] within this
|
||||
/// actor.
|
||||
pub fn inert_entity<M>(&mut self) -> Arc<Ref<M>> {
|
||||
self.create(InertEntity)
|
||||
}
|
||||
|
||||
/// Construct an entity with behaviour `e` within this actor.
|
||||
pub fn create<M, E: Entity<M> + Send + 'static>(&mut self, e: E) -> Arc<Ref<M>> {
|
||||
let r = self.create_inert();
|
||||
r.become_entity(e);
|
||||
r
|
||||
}
|
||||
|
||||
/// Construct an entity whose behaviour will be specified later
|
||||
/// (via [`become_entity`][Ref::become_entity]).
|
||||
pub fn create_inert<M>(&mut self) -> Arc<Ref<M>> {
|
||||
Arc::new(Ref {
|
||||
mailbox: self.mailbox(),
|
||||
target: Mutex::new(None),
|
||||
})
|
||||
}
|
||||
|
||||
/// Registers the entity `r` in the list of exit hooks for this
|
||||
/// actor. When the actor terminates, `r`'s
|
||||
/// [`exit_hook`][Entity::exit_hook] will be called.
|
||||
pub fn add_exit_hook<M: 'static + Send>(&mut self, r: &Arc<Ref<M>>) {
|
||||
let r = Arc::clone(r);
|
||||
self.exit_hooks.push(Box::new(move |t, exit_status| {
|
||||
r.with_entity(|e| e.exit_hook(t, &exit_status))
|
||||
}))
|
||||
self.exit_hooks.push(Box::new(
|
||||
move |t, exit_status| r.internal_with_entity(|e| e.exit_hook(t, &exit_status))))
|
||||
}
|
||||
|
||||
/// Start a new [linked task][crate::actor#linked-tasks] attached
|
||||
/// to this actor. The function `boot` is the main function of the
|
||||
/// new task. Uses `name` for log messages emitted by the task.
|
||||
pub fn linked_task<F: 'static + Send + futures::Future<Output = ActorResult>>(
|
||||
&mut self,
|
||||
name: tracing::Span,
|
||||
boot: F,
|
||||
) {
|
||||
let mailbox = self.mailbox();
|
||||
let token = CancellationToken::new();
|
||||
let task_id = NEXT_TASK_ID.fetch_add(1, Ordering::Relaxed);
|
||||
name.record("task_id", &task_id);
|
||||
{
|
||||
let token = token.clone();
|
||||
tokio::spawn(async move {
|
||||
tracing::trace!(task_id, "linked task start");
|
||||
select! {
|
||||
_ = token.cancelled() => {
|
||||
tracing::trace!(task_id, "linked task cancelled");
|
||||
Ok(())
|
||||
fn get_facet(&mut self, facet_id: FacetId) -> Option<&mut Facet> {
|
||||
self.facet_nodes.get_mut(&facet_id)
|
||||
}
|
||||
result = boot => {
|
||||
match &result {
|
||||
Ok(()) => {
|
||||
tracing::trace!(task_id, "linked task normal stop");
|
||||
()
|
||||
|
||||
/// See the definition of an [inert facet][Facet#inert-facets].
|
||||
fn facet_exists_and_is_inert(&mut self, facet_id: FacetId) -> bool {
|
||||
let no_kids = self.facet_children.get(&facet_id).map(|cs| cs.is_empty()).unwrap_or(true);
|
||||
if let Some(f) = self.get_facet(facet_id) {
|
||||
no_kids &&
|
||||
f.cleanup_actions.is_empty() &&
|
||||
f.linked_tasks.is_empty() &&
|
||||
f.inert_check_preventers.load(Ordering::Relaxed) == 0
|
||||
} else {
|
||||
false
|
||||
}
|
||||
Err(e) => {
|
||||
tracing::error!(task_id, "linked task error: {}", e);
|
||||
let _ = mailbox.tx.send(SystemMessage::Crash(e.clone()));
|
||||
()
|
||||
}
|
||||
}
|
||||
result
|
||||
}
|
||||
}
|
||||
}.instrument(name));
|
||||
}
|
||||
self.linked_tasks.insert(task_id, token);
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -1026,7 +1264,7 @@ impl Drop for Actor {
|
|||
}
|
||||
}
|
||||
|
||||
impl Drop for RunningActor {
|
||||
impl Drop for Facet {
|
||||
fn drop(&mut self) {
|
||||
for (_task_id, token) in std::mem::take(&mut self.linked_tasks).into_iter() {
|
||||
token.cancel();
|
||||
|
@ -1041,13 +1279,13 @@ impl Drop for RunningActor {
|
|||
}
|
||||
}
|
||||
|
||||
tracing::trace!("Actor::drop");
|
||||
tracing::trace!(facet_id = debug(self.facet_id), "Facet::drop");
|
||||
}
|
||||
}
|
||||
|
||||
/// Directly injects `action` into `mailbox`, billing subsequent activity against `account`.
|
||||
///
|
||||
/// Primarily for use by [linked tasks][RunningActor::linked_task].
|
||||
/// Primarily for use by [linked tasks][Activation::linked_task].
|
||||
#[must_use]
|
||||
pub fn external_event(mailbox: &Arc<Mailbox>, account: &Arc<Account>, action: Action) -> ActorResult {
|
||||
send_actions(&mailbox.tx, account, vec![action])
|
||||
|
@ -1055,7 +1293,7 @@ pub fn external_event(mailbox: &Arc<Mailbox>, account: &Arc<Account>, action: Ac
|
|||
|
||||
/// Directly injects `actions` into `mailbox`, billing subsequent activity against `account`.
|
||||
///
|
||||
/// Primarily for use by [linked tasks][RunningActor::linked_task].
|
||||
/// Primarily for use by [linked tasks][Activation::linked_task].
|
||||
#[must_use]
|
||||
pub fn external_events(mailbox: &Arc<Mailbox>, account: &Arc<Account>, actions: PendingEventQueue) -> ActorResult {
|
||||
send_actions(&mailbox.tx, account, actions)
|
||||
|
@ -1063,7 +1301,7 @@ pub fn external_events(mailbox: &Arc<Mailbox>, account: &Arc<Account>, actions:
|
|||
|
||||
impl<M> Ref<M> {
|
||||
/// Supplies the behaviour (`e`) for a `Ref` created via
|
||||
/// [`create_inert`][RunningActor::create_inert].
|
||||
/// [`create_inert`][Activation::create_inert].
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
|
@ -1076,8 +1314,7 @@ impl<M> Ref<M> {
|
|||
*g = Some(Box::new(e));
|
||||
}
|
||||
|
||||
#[doc(hidden)]
|
||||
pub fn with_entity<R, F: FnOnce(&mut dyn Entity<M>) -> R>(&self, f: F) -> R {
|
||||
fn internal_with_entity<R, F: FnOnce(&mut dyn Entity<M>) -> R>(&self, f: F) -> R {
|
||||
let mut g = self.target.lock().expect("unpoisoned");
|
||||
f(g.as_mut().expect("initialized").as_mut())
|
||||
}
|
||||
|
@ -1135,6 +1372,7 @@ impl Cap {
|
|||
{
|
||||
Self::new(&Arc::new(Ref {
|
||||
mailbox: Arc::clone(&underlying.mailbox),
|
||||
facet_id: underlying.facet_id,
|
||||
target: Mutex::new(Some(Box::new(Guard { underlying: underlying.clone() }))),
|
||||
}))
|
||||
}
|
||||
|
@ -1221,24 +1459,24 @@ where
|
|||
{
|
||||
fn assert(&mut self, t: &mut Activation, a: AnyValue, h: Handle) -> ActorResult {
|
||||
match M::try_from(&a) {
|
||||
Ok(a) => self.underlying.with_entity(|e| e.assert(t, a, h)),
|
||||
Ok(a) => t.with_entity(&self.underlying, |t, e| e.assert(t, a, h)),
|
||||
Err(_) => Ok(()),
|
||||
}
|
||||
}
|
||||
fn retract(&mut self, t: &mut Activation, h: Handle) -> ActorResult {
|
||||
self.underlying.with_entity(|e| e.retract(t, h))
|
||||
t.with_entity(&self.underlying, |t, e| e.retract(t, h))
|
||||
}
|
||||
fn message(&mut self, t: &mut Activation, m: AnyValue) -> ActorResult {
|
||||
match M::try_from(&m) {
|
||||
Ok(m) => self.underlying.with_entity(|e| e.message(t, m)),
|
||||
Ok(m) => t.with_entity(&self.underlying, |t, e| e.message(t, m)),
|
||||
Err(_) => Ok(()),
|
||||
}
|
||||
}
|
||||
fn sync(&mut self, t: &mut Activation, peer: Arc<Ref<Synced>>) -> ActorResult {
|
||||
self.underlying.with_entity(|e| e.sync(t, peer))
|
||||
t.with_entity(&self.underlying, |t, e| e.sync(t, peer))
|
||||
}
|
||||
fn exit_hook(&mut self, t: &mut Activation, exit_status: &Arc<ActorResult>) -> ActorResult {
|
||||
self.underlying.with_entity(|e| e.exit_hook(t, exit_status))
|
||||
self.underlying.internal_with_entity(|e| e.exit_hook(t, exit_status))
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -98,8 +98,8 @@ where
|
|||
}
|
||||
}
|
||||
|
||||
pub fn create(self, ac: &mut RunningActor) -> Arc<Ref<M>> {
|
||||
ac.create(self)
|
||||
pub fn create(self, t: &mut Activation) -> Arc<Ref<M>> {
|
||||
t.create(self)
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -109,9 +109,9 @@ where
|
|||
Fa: 'static + Send + FnMut(&mut E, &mut Activation, AnyValue) -> DuringResult<E>,
|
||||
Fm: 'static + Send + FnMut(&mut E, &mut Activation, AnyValue) -> ActorResult,
|
||||
{
|
||||
pub fn create_cap(self, ac: &mut RunningActor) -> Arc<Cap>
|
||||
pub fn create_cap(self, t: &mut Activation) -> Arc<Cap>
|
||||
{
|
||||
Cap::new(&self.create(ac))
|
||||
Cap::new(&self.create(t))
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -162,7 +162,7 @@ pub fn connect_stream<I, O, E, F>(
|
|||
let i = Input::Bytes(Box::pin(i));
|
||||
let o = Output::Bytes(Box::pin(o));
|
||||
let gatekeeper = TunnelRelay::run(t, i, o, None, Some(sturdy::Oid(0.into()))).unwrap();
|
||||
let main_entity = t.state.create(during::entity(initial_state).on_asserted(move |state, t, a: AnyValue| {
|
||||
let main_entity = t.create(during::entity(initial_state).on_asserted(move |state, t, a: AnyValue| {
|
||||
let denotation = a.value().to_embedded()?;
|
||||
f(state, t, Arc::clone(denotation))
|
||||
}));
|
||||
|
@ -182,7 +182,7 @@ impl TunnelRelay {
|
|||
) -> Option<Arc<Cap>> {
|
||||
let (output_tx, output_rx) = unbounded_channel();
|
||||
let tr_ref = Arc::new(Mutex::new(None));
|
||||
let self_entity = t.state.create(TunnelRefEntity {
|
||||
let self_entity = t.create(TunnelRefEntity {
|
||||
relay_ref: Arc::clone(&tr_ref),
|
||||
});
|
||||
let mut tr = TunnelRelay {
|
||||
|
@ -203,10 +203,10 @@ impl TunnelRelay {
|
|||
tr.membranes.export_ref(ir, true);
|
||||
}
|
||||
let result = initial_oid.map(
|
||||
|io| Arc::clone(&tr.membranes.import_oid(t.state, &tr_ref, io).obj));
|
||||
|io| Arc::clone(&tr.membranes.import_oid(t, &tr_ref, io).obj));
|
||||
*tr_ref.lock().unwrap() = Some(tr);
|
||||
t.state.linked_task(crate::name!("writer"), output_loop(o, output_rx));
|
||||
t.state.linked_task(crate::name!("reader"), input_loop(t.actor.clone(), i, tr_ref));
|
||||
t.linked_task(crate::name!("writer"), output_loop(o, output_rx));
|
||||
t.linked_task(crate::name!("reader"), input_loop(t.facet.clone(), i, tr_ref));
|
||||
t.state.add_exit_hook(&self_entity);
|
||||
result
|
||||
}
|
||||
|
@ -324,7 +324,7 @@ impl TunnelRelay {
|
|||
Ok(())
|
||||
}
|
||||
}
|
||||
let k = t.state.create(SyncPeer {
|
||||
let k = t.create(SyncPeer {
|
||||
relay_ref: Arc::clone(&self.self_ref),
|
||||
peer: Arc::clone(&peer),
|
||||
});
|
||||
|
@ -419,11 +419,11 @@ impl Membranes {
|
|||
|
||||
fn import_oid(
|
||||
&mut self,
|
||||
ac: &mut RunningActor,
|
||||
t: &mut Activation,
|
||||
relay_ref: &TunnelRelayRef,
|
||||
oid: sturdy::Oid,
|
||||
) -> Arc<WireSymbol> {
|
||||
let obj = ac.create(RelayEntity { relay_ref: Arc::clone(relay_ref), oid: oid.clone() });
|
||||
let obj = t.create(RelayEntity { relay_ref: Arc::clone(relay_ref), oid: oid.clone() });
|
||||
self.imported.insert(oid, Cap::new(&obj))
|
||||
}
|
||||
|
||||
|
@ -440,7 +440,7 @@ impl Membranes {
|
|||
let oid = *b;
|
||||
match self.imported.oid_map.get(&oid) {
|
||||
Some(ws) => Ok(Arc::clone(&ws.obj)),
|
||||
None => Ok(Arc::clone(&self.import_oid(t.state, relay_ref, oid).obj)),
|
||||
None => Ok(Arc::clone(&self.import_oid(t, relay_ref, oid).obj)),
|
||||
}
|
||||
}
|
||||
sturdy::WireRef::Yours { oid: b, attenuation } => {
|
||||
|
@ -458,7 +458,7 @@ impl Membranes {
|
|||
})?)
|
||||
}
|
||||
}
|
||||
None => Ok(Cap::new(&t.state.inert_entity())),
|
||||
None => Ok(Cap::new(&t.inert_entity())),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -515,7 +515,7 @@ impl DomainEncode<P::_Ptr> for Membranes {
|
|||
}
|
||||
|
||||
async fn input_loop(
|
||||
ac: ActorRef,
|
||||
facet: FacetRef,
|
||||
i: Input,
|
||||
relay: TunnelRelayRef,
|
||||
) -> ActorResult {
|
||||
|
@ -525,10 +525,8 @@ async fn input_loop(
|
|||
loop {
|
||||
account.ensure_clear_funds().await;
|
||||
match src.next().await {
|
||||
None => return Activation::for_actor(&ac, Arc::clone(&account), |t| {
|
||||
Ok(t.state.shutdown())
|
||||
}),
|
||||
Some(bs) => Activation::for_actor(&ac, Arc::clone(&account), |t| {
|
||||
None => return facet.activate(Arc::clone(&account), |t| Ok(t.state.shutdown())),
|
||||
Some(bs) => facet.activate(Arc::clone(&account), |t| {
|
||||
let mut g = relay.lock().expect("unpoisoned");
|
||||
let tr = g.as_mut().expect("initialized");
|
||||
tr.handle_inbound_datagram(t, &bs?)
|
||||
|
@ -546,18 +544,14 @@ async fn input_loop(
|
|||
Ok(n) => n,
|
||||
Err(e) =>
|
||||
if e.kind() == io::ErrorKind::ConnectionReset {
|
||||
return Activation::for_actor(&ac, Arc::clone(&account), |t| {
|
||||
Ok(t.state.shutdown())
|
||||
});
|
||||
return facet.activate(Arc::clone(&account), |t| Ok(t.state.shutdown()));
|
||||
} else {
|
||||
return Err(e)?;
|
||||
},
|
||||
};
|
||||
match n {
|
||||
0 => return Activation::for_actor(&ac, Arc::clone(&account), |t| {
|
||||
Ok(t.state.shutdown())
|
||||
}),
|
||||
_ => Activation::for_actor(&ac, Arc::clone(&account), |t| {
|
||||
0 => return facet.activate(Arc::clone(&account), |t| Ok(t.state.shutdown())),
|
||||
_ => facet.activate(Arc::clone(&account), |t| {
|
||||
let mut g = relay.lock().expect("unpoisoned");
|
||||
let tr = g.as_mut().expect("initialized");
|
||||
tr.handle_inbound_stream(t, &mut buf)
|
||||
|
|
|
@ -10,17 +10,9 @@ fn set_name_oid<M>(t: &mut Tracer, r: &Arc<Ref<M>>) {
|
|||
t.0.record("oid", &tracing::field::display(&r.oid()));
|
||||
}
|
||||
|
||||
pub fn tracer<M: Debug>(ac: &mut RunningActor, name: tracing::Span) -> Arc<Ref<M>> {
|
||||
pub fn tracer<M: Debug>(t: &mut Activation, name: tracing::Span) -> Arc<Ref<M>> {
|
||||
let mut e = Tracer(name);
|
||||
let r = ac.create_inert();
|
||||
set_name_oid(&mut e, &r);
|
||||
r.become_entity(e);
|
||||
r
|
||||
}
|
||||
|
||||
pub fn tracer_top<M: Debug>(name: tracing::Span) -> Arc<Ref<M>> {
|
||||
let mut e = Tracer(name);
|
||||
let r = Actor::create_and_start_inert(crate::name!(parent: None, "tracer"));
|
||||
let r = t.create_inert();
|
||||
set_name_oid(&mut e, &r);
|
||||
r.become_entity(e);
|
||||
r
|
||||
|
|
Loading…
Reference in New Issue