Changeset - 3f2759e5fc57
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[Not reviewed]
0 5 0
MH - 4 years ago 2021-10-25 13:08:11
contact@maxhenger.nl
somewhat correctly handling port closing and rerouting
5 files changed with 135 insertions and 54 deletions:
src/runtime2/connector.rs
43
2
src/runtime2/inbox.rs
3
3
src/runtime2/mod.rs
5
4
src/runtime2/scheduler.rs
81
43
src/runtime2/tests/mod.rs
3
2
0 comments (0 inline, 0 general)
src/runtime2/connector.rs
➞
Show inline comments
 
@@ -61,6 +61,7 @@ pub(crate) struct Branch {
 
    code_state: ComponentState,
 
    prepared_channel: Option<(Value, Value)>,
 
    sync_state: SpeculativeState,
 
    halted_at_port: PortIdLocal, // invalid if not halted
 
    next_branch_in_queue: Option<u32>,
 
    // Message/port state
 
    received: HashMap<PortIdLocal, DataMessage>, // TODO: @temporary, remove together with fires()
 
@@ -77,6 +78,7 @@ impl Branch {
 
            code_state: component_state,
 
            prepared_channel: None,
 
            sync_state: SpeculativeState::RunningNonSync,
 
            halted_at_port: PortIdLocal::new_invalid(),
 
            next_branch_in_queue: None,
 
            received: HashMap::new(),
 
            ports_delta: Vec::new(),
 
@@ -98,6 +100,7 @@ impl Branch {
 
            code_state: parent_branch.code_state.clone(),
 
            prepared_channel: None,
 
            sync_state: SpeculativeState::RunningInSync,
 
            halted_at_port: PortIdLocal::new_invalid(),
 
            next_branch_in_queue: None,
 
            received: parent_branch.received.clone(),
 
            ports_delta: parent_branch.ports_delta.clone(),
 
@@ -105,7 +108,13 @@ impl Branch {
 
    }
 

			




	
	
	
		
 
    fn commit_to_sync(&mut self) {

			




	
	
	
		
 
        self.index = BranchId::new(0);

			




	
	
	
		
 
        // Logically impossible conditions (because we have a finished branch

			




	
	
	
		
 
        // we are going to commit to)

			




	
	
	
		
 
        debug_assert!(self.prepared_channel.is_none());

			




	
	
	
		
 
        debug_assert!(!self.halted_at_port.is_valid());

			




	
	
	
		
 

			




	
	
	
		
 
        // Reset other variables to their defaults

			




	
	
	
		
 
        self.index = BranchId::new_invalid();

			




	
	
	
		
 
        self.parent_index = BranchId::new_invalid();

			




	
	
	
		
 
        self.sync_state = SpeculativeState::RunningNonSync;

			




	
	
	
		
 
        self.next_branch_in_queue = None;

			




	
	
		
 
@@ -404,6 +413,38 @@ impl Connector for ConnectorPDL {

			




	
	
	
		
 

			




	
	
	
		
 
    fn run(&mut self, sched_ctx: SchedulerCtx, conn_ctx: &ConnectorCtx, delta_state: &mut RunDeltaState) -> ConnectorScheduling {

			




	
	
	
		
 
        if self.in_sync {

			




	
	
	
		
 
            // Check for new messages we haven't seen before. If any of the

			




	
	
	
		
 
            // pending branches can accept the message, do so.

			




	
	
	
		
 
            while let Some((target_port_id, message)) = self.inbox.next_message() {

			




	
	
	
		
 
                let mut branch_idx = self.sync_pending_get.first;

			




	
	
	
		
 
                while branch_idx != 0 {

			




	
	
	
		
 
                    let branch = &self.branches[branch_idx as usize];

			




	
	
	
		
 
                    let next_branch_idx = branch.next_branch_in_queue.unwrap_or(0);

			




	
	
	
		
 

			




	
	
	
		
 
                    let target_port_index = self.ports.get_port_index(*target_port_id).unwrap();

			




	
	
	
		
 
                    let port_mapping = self.ports.get_port(branch_idx, target_port_index);

			




	
	
	
		
 

			




	
	
	
		
 
                    if branch.sync_state == SpeculativeState::HaltedAtBranchPoint &&

			




	
	
	
		
 
                        branch.halted_at_port == *target_port_id &&

			




	
	
	
		
 
                        port_mapping.last_registered_branch_id == message.sender_prev_branch_id {

			




	
	
	
		
 
                        // Branch may accept this mesage, so create a fork that

			




	
	
	
		
 
                        // contains this message in the inbox.

			




	
	
	
		
 
                        let new_branch_idx = self.branches.len() as u32;

			




	
	
	
		
 
                        let new_branch = Branch::new_sync_branching_from(new_branch_idx, branch);

			




	
	
	
		
 

			




	
	
	
		
 
                        self.ports.prepare_sync_branch(branch_idx, new_branch_idx);

			




	
	
	
		
 
                        let mapping = self.ports.get_port_mut(branch_idx, target_port_index);

			




	
	
	
		
 
                        mapping.last_registered_branch_id = message.sender_cur_branch_id;

			




	
	
	
		
 

			




	
	
	
		
 
                        let new_branch_id = BranchId::new(new_branch_idx);

			




	
	
	
		
 
                        self.branches.push(new_branch);

			




	
	
	
		
 
                        Self::push_branch_into_queue(&mut self.branches, &mut self.sync_active, new_branch_id)

			




	
	
	
		
 
                    }

			




	
	
	
		
 

			




	
	
	
		
 
                    branch_idx = next_branch_idx;

			




	
	
	
		
 
                }

			




	
	
	
		
 
            }

			




	
	
	
		
 

			




	
	
	
		
 
            let scheduling = self.run_in_speculative_mode(sched_ctx, conn_ctx, delta_state);

			




	
	
	
		
 

			




	
	
	
		
 
            // When in speculative mode we might have generated new sync

			




	
	
		
 
@@ -486,7 +527,6 @@ impl ConnectorPDL {

			




	
	
	
		
 
    // Handling connector messages

			




	
	
	
		
 
    // -------------------------------------------------------------------------

			




	
	
	
		
 

			




	
	
	
		
 
    #[inline]

			




	
	
	
		
 
    pub fn handle_data_message(&mut self, target_port: PortIdLocal, message: DataMessage) {

			




	
	
	
		
 
        self.inbox.insert_message(target_port, message);

			




	
	
	
		
 
    }

			




	
	
		
 
@@ -819,6 +859,7 @@ impl ConnectorPDL {

			




	
	
	
		
 
                if is_valid_get {

			




	
	
	
		
 
                    // Mark as a branching point for future messages

			




	
	
	
		
 
                    branch.sync_state = SpeculativeState::HaltedAtBranchPoint;

			




	
	
	
		
 
                    branch.halted_at_port = local_port_id;

			




	
	
	
		
 
                    let branch_id = branch.index;

			




	
	
	
		
 
                    Self::push_branch_into_queue(&mut self.branches, &mut self.sync_pending_get, branch_id);

			




	
	
	
		
 

			




        

    


    
    

    

        

                

                    src/runtime2/inbox.rs
                

                

                  
                      
                        

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@@ -293,14 +293,14 @@ impl PrivateInbox {

			




	
	
	
		
 

			




	
	
	
		
 
    /// Retrieves the next unread message. Should only be called by the

			




	
	
	
		
 
    /// inbox-reader.

			




	
	
	
		
 
    pub(crate) fn next_message(&mut self) -> Option<&DataMessage> {

			




	
	
	
		
 
    pub(crate) fn next_message(&mut self) -> Option<(&PortIdLocal, &DataMessage)> {

			




	
	
	
		
 
        if self.len_read == self.messages.len() {

			




	
	
	
		
 
            return None;

			




	
	
	
		
 
        }

			




	
	
	
		
 

			




	
	
	
		
 
        let (_, to_return) = &self.messages[self.len_read];

			




	
	
	
		
 
        let (target_port, message) = &self.messages[self.len_read];

			




	
	
	
		
 
        self.len_read += 1;

			




	
	
	
		
 
        return Some(to_return);

			




	
	
	
		
 
        return Some((target_port, message));

			




	
	
	
		
 
    }

			




	
	
	
		
 

			




	
	
	
		
 
    /// Simply empties the inbox

			




        

    


    
    

    

        

                

                    src/runtime2/mod.rs
                

                

                  
                      
                        

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@@ -24,7 +24,7 @@ use inbox::Message;

			




	
	
	
		
 
use connector::{ConnectorPDL, ConnectorPublic, ConnectorScheduling, RunDeltaState};

			




	
	
	
		
 
use scheduler::{Scheduler, ConnectorCtx, ControlMessageHandler};

			




	
	
	
		
 
use native::{Connector, ConnectorApplication, ApplicationInterface};

			




	
	
	
		
 
use crate::runtime2::port::Port;

			




	
	
	
		
 
use crate::runtime2::port::{Port, PortState};

			




	
	
	
		
 
use crate::runtime2::scheduler::SchedulerCtx;

			




	
	
	
		
 

			




	
	
	
		
 
/// A kind of token that, once obtained, allows mutable access to a connector.

			




	
	
		
 
@@ -231,12 +231,14 @@ impl RuntimeInner {

			




	
	
	
		
 
            self_id: getter_id,

			




	
	
	
		
 
            peer_id: putter_id,

			




	
	
	
		
 
            kind: PortKind::Getter,

			




	
	
	
		
 
            state: PortState::Open,

			




	
	
	
		
 
            peer_connector: creating_connector,

			




	
	
	
		
 
        };

			




	
	
	
		
 
        let putter_port = Port{

			




	
	
	
		
 
            self_id: putter_id,

			




	
	
	
		
 
            peer_id: getter_id,

			




	
	
	
		
 
            kind: PortKind::Putter,

			




	
	
	
		
 
            state: PortState::Open,

			




	
	
	
		
 
            peer_connector: creating_connector,

			




	
	
	
		
 
        };

			




	
	
	
		
 

			




	
	
		
 
@@ -289,7 +291,7 @@ impl RuntimeInner {

			




	
	
	
		
 
                ConnectorVariant::UserDefined(connector) => {

			




	
	
	
		
 
                    for port_id in connector.ports.owned_ports.iter().copied() {

			




	
	
	
		
 
                        println!("DEBUG: Transferring port {:?} from {} to {}", port_id, created_by.context.id.0, key.index);

			




	
	
	
		
 
                        let mut port = created_by.context.remove_port(port_id);

			




	
	
	
		
 
                        let port = created_by.context.remove_port(port_id);

			




	
	
	
		
 
                        created.context.add_port(port);

			




	
	
	
		
 
                    }

			




	
	
	
		
 
                },

			




	
	
		
 
@@ -350,7 +352,7 @@ impl RuntimeInner {

			




	
	
	
		
 
        let old_num = self.active_connectors.fetch_sub(1, Ordering::SeqCst);

			




	
	
	
		
 
        println!("DEBUG: Decremented components to {}", old_num - 1);

			




	
	
	
		
 
        debug_assert!(old_num > 0);

			




	
	
	
		
 
        if old_num == 0 { // such that we have no more active connectors (for now!)

			




	
	
	
		
 
        if old_num == 1 { // such that we have no more active connectors (for now!)

			




	
	
	
		
 
            let num_interfaces = self.active_interfaces.load(Ordering::Acquire);

			




	
	
	
		
 
            if num_interfaces == 0 {

			




	
	
	
		
 
                self.signal_for_shutdown();

			




	
	
		
 
@@ -428,7 +430,6 @@ impl ConnectorStore {

			




	
	
	
		
 
            public: ConnectorPublic::new(initially_sleeping),

			




	
	
	
		
 
            router: ControlMessageHandler::new(),

			




	
	
	
		
 
            shutting_down: false,

			




	
	
	
		
 
            pending_acks: 0,

			




	
	
	
		
 
        };

			




	
	
	
		
 

			




	
	
	
		
 
        let index;

			




        

    


    
    

    

        

                

                    src/runtime2/scheduler.rs
                

                

                  
                      
                        

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use std::sync::Arc;

			




	
	
	
		
 
use std::sync::atomic::Ordering;

			




	
	
	
		
 
use crate::runtime2::ScheduledConnector;

			




	
	
	
		
 

			




	
	
	
		
 
use super::{RuntimeInner, ConnectorId, ConnectorKey};

			




	
	
	
		
 
use super::port::{Port, PortState, PortIdLocal};

			




	
	
		
 
@@ -77,18 +78,18 @@ impl Scheduler {

			




	
	
	
		
 

			




	
	
	
		
 
        'thread_loop: loop {

			




	
	
	
		
 
            // Retrieve a unit of work

			




	
	
	
		
 
            println!("DEBUG [{}]: Waiting for work", scheduler_id);

			




	
	
	
		
 
            self.debug("Waiting for work");

			




	
	
	
		
 
            let connector_key = self.runtime.wait_for_work();

			




	
	
	
		
 
            if connector_key.is_none() {

			




	
	
	
		
 
                // We should exit

			




	
	
	
		
 
                println!("DEBUG [{}]: ... No more work, quitting", scheduler_id);

			




	
	
	
		
 
                self.debug(" ... No more work, quitting");

			




	
	
	
		
 
                break 'thread_loop;

			




	
	
	
		
 
            }

			




	
	
	
		
 

			




	
	
	
		
 
            // We have something to do

			




	
	
	
		
 
            let connector_key = connector_key.unwrap();

			




	
	
	
		
 
            let connector_id = connector_key.downcast();

			




	
	
	
		
 
            println!("DEBUG [{}]: ... Got work, running {}", scheduler_id, connector_key.index);

			




	
	
	
		
 
            self.debug_conn(connector_id, &format!(" ... Got work, running {}", connector_key.index));

			




	
	
	
		
 

			




	
	
	
		
 
            let scheduled = self.runtime.get_component_private(&connector_key);

			




	
	
	
		
 

			




	
	
		
 
@@ -99,9 +100,9 @@ impl Scheduler {

			




	
	
	
		
 
                // Check all the message that are in the shared inbox

			




	
	
	
		
 
                while let Some(message) = scheduled.public.inbox.take_message() {

			




	
	
	
		
 
                    // Check for rerouting

			




	
	
	
		
 
                    println!("DEBUG [{}]: Handling message from {}:{}\n{:#?}", scheduler_id, message.sending_connector.0, message.receiving_port.index, message);

			




	
	
	
		
 
                    self.debug_conn(connector_id, &format!("Handling message from {}:{}\n --- {:?}", message.sending_connector.0, message.receiving_port.index, message));

			




	
	
	
		
 
                    if let Some(other_connector_id) = scheduled.router.should_reroute(message.sending_connector, message.receiving_port) {

			




	
	
	
		
 
                        self.send_message_and_wake_up_if_sleeping(other_connector_id, message);

			




	
	
	
		
 
                        self.runtime.send_message(other_connector_id, message);

			




	
	
	
		
 
                        continue;

			




	
	
	
		
 
                    }

			




	
	
	
		
 

			




	
	
		
 
@@ -113,14 +114,14 @@ impl Scheduler {

			




	
	
	
		
 
                                // Need to change port target

			




	
	
	
		
 
                                let port = scheduled.context.get_port_mut(port_id);

			




	
	
	
		
 
                                port.peer_connector = new_target_connector_id;

			




	
	
	
		
 

			




	
	
	
		
 
                                // Note: for simplicity we program the scheduler to always finish

			




	
	
	
		
 
                                // running a connector with an empty outbox. If this ever changes

			




	
	
	
		
 
                                // then accepting the "port peer changed" message implies we need

			




	
	
	
		
 
                                // to change the recipient of the message in the outbox.

			




	
	
	
		
 
                                debug_assert!(delta_state.outbox.is_empty());

			




	
	
	
		
 

			




	
	
	
		
 
                                // And respond with an Ack

			




	
	
	
		
 
                                // Note: after this code has been reached, we may not have any

			




	
	
	
		
 
                                // messages in the outbox that send to the port whose owning

			




	
	
	
		
 
                                // connector we just changed. This is because the `ack` will

			




	
	
	
		
 
                                // clear the rerouting entry of the `ack`-receiver.

			




	
	
	
		
 
                                // TODO: Question from Max from the past: what the hell did you mean?

			




	
	
	
		
 
                                self.runtime.send_message(

			




	
	
	
		
 
                                    message.sending_connector,

			




	
	
	
		
 
                                    Message{

			




	
	
		
 
@@ -167,6 +168,7 @@ impl Scheduler {

			




	
	
	
		
 
                if scheduled.shutting_down {

			




	
	
	
		
 
                    // Nothing to do. But we're stil waiting for all our pending

			




	
	
	
		
 
                    // control messages to be answered.

			




	
	
	
		
 
                    self.debug_conn(connector_id, &format!("Shutting down, {} Acks remaining", scheduled.router.num_pending_acks()));

			




	
	
	
		
 
                    if scheduled.router.num_pending_acks() == 0 {

			




	
	
	
		
 
                        // We're actually done, we can safely destroy the

			




	
	
	
		
 
                        // currently running connector

			




	
	
		
 
@@ -176,16 +178,16 @@ impl Scheduler {

			




	
	
	
		
 
                        cur_schedule = ConnectorScheduling::NotNow;

			




	
	
	
		
 
                    }

			




	
	
	
		
 
                } else {

			




	
	
	
		
 
                    println!("DEBUG [{}]: Running {} ...", scheduler_id, connector_key.index);

			




	
	
	
		
 
                    self.debug_conn(connector_id, "Running ...");

			




	
	
	
		
 
                    let scheduler_ctx = SchedulerCtx{ runtime: &*self.runtime };

			




	
	
	
		
 
                    let new_schedule = scheduled.connector.run(

			




	
	
	
		
 
                        scheduler_ctx, &scheduled.context, &mut delta_state

			




	
	
	
		
 
                    );

			




	
	
	
		
 
                    println!("DEBUG [{}]: ... Finished running {}", scheduler_id, connector_key.index);

			




	
	
	
		
 
                    self.debug_conn(connector_id, "Finished running");

			




	
	
	
		
 

			




	
	
	
		
 
                    // Handle all of the output from the current run: messages to

			




	
	
	
		
 
                    // send and connectors to instantiate.

			




	
	
	
		
 
                    self.handle_delta_state(&connector_key, &mut scheduled.context, &mut delta_state);

			




	
	
	
		
 
                    self.handle_delta_state(scheduled, connector_key.downcast(), &mut delta_state);

			




	
	
	
		
 

			




	
	
	
		
 
                    cur_schedule = new_schedule;

			




	
	
	
		
 
                }

			




	
	
		
 
@@ -204,27 +206,14 @@ impl Scheduler {

			




	
	
	
		
 
                    // Need to sleep, note that we are the only ones which are

			




	
	
	
		
 
                    // allows to set the sleeping state to `true`, and since

			




	
	
	
		
 
                    // we're running it must currently be `false`.

			




	
	
	
		
 
                    debug_assert_eq!(scheduled.public.sleeping.load(Ordering::Acquire), false);

			




	
	
	
		
 
                    scheduled.public.sleeping.store(true, Ordering::Release);

			




	
	
	
		
 

			




	
	
	
		
 
                    // We might have received a message in the meantime from a

			




	
	
	
		
 
                    // thread that did not see the sleeping flag set to `true`,

			




	
	
	
		
 
                    // so:

			




	
	
	
		
 
                    if !scheduled.public.inbox.is_empty() {

			




	
	
	
		
 
                        let should_reschedule_self = scheduled.public.sleeping

			




	
	
	
		
 
                            .compare_exchange(true, false, Ordering::SeqCst, Ordering::Acquire)

			




	
	
	
		
 
                            .is_ok();

			




	
	
	
		
 

			




	
	
	
		
 
                        if should_reschedule_self {

			




	
	
	
		
 
                            self.runtime.push_work(connector_key);

			




	
	
	
		
 
                        }

			




	
	
	
		
 
                    }

			




	
	
	
		
 
                    self.try_go_to_sleep(connector_key, scheduled);

			




	
	
	
		
 
                },

			




	
	
	
		
 
                ConnectorScheduling::Exit => {

			




	
	
	
		
 
                    // Prepare for exit. Set the shutdown flag and broadcast

			




	
	
	
		
 
                    // messages to notify peers of closing channels

			




	
	
	
		
 
                    scheduled.shutting_down = true;

			




	
	
	
		
 
                    for port in &scheduled.context.ports {

			




	
	
	
		
 
                        if port.state != PortState::Closed {

			




	
	
	
		
 
                            let message = scheduled.router.prepare_closing_channel(

			




	
	
	
		
 
                                port.self_id, port.peer_id,

			




	
	
	
		
 
                                connector_id

			




	
	
		
 
@@ -232,30 +221,40 @@ impl Scheduler {

			




	
	
	
		
 
                            self.runtime.send_message(port.peer_connector, message);

			




	
	
	
		
 
                        }

			




	
	
	
		
 
                    }

			




	
	
	
		
 

			




	
	
	
		
 
                    if scheduled.router.num_pending_acks() == 0 {

			




	
	
	
		
 
                        self.runtime.destroy_component(connector_key);

			




	
	
	
		
 
                        continue 'thread_loop;

			




	
	
	
		
 
                    }

			




	
	
	
		
 

			




	
	
	
		
 
                    self.try_go_to_sleep(connector_key, scheduled);

			




	
	
	
		
 
                }

			




	
	
	
		
 
            }

			




	
	
	
		
 
        }

			




	
	
	
		
 
    }

			




	
	
	
		
 

			




	
	
	
		
 
    fn handle_delta_state(&mut self, connector_key: &ConnectorKey, context: &mut ConnectorCtx, delta_state: &mut RunDeltaState) {

			




	
	
	
		
 
    fn handle_delta_state(&mut self,

			




	
	
	
		
 
        cur_connector: &mut ScheduledConnector, connector_id: ConnectorId,

			




	
	
	
		
 
        delta_state: &mut RunDeltaState

			




	
	
	
		
 
    ) {

			




	
	
	
		
 
        // Handling any messages that were sent

			




	
	
	
		
 
        let connector_id = connector_key.downcast();

			




	
	
	
		
 

			




	
	
	
		
 
        if !delta_state.outbox.is_empty() {

			




	
	
	
		
 
            for mut message in delta_state.outbox.drain(..) {

			




	
	
	
		
 
                // Based on the message contents, decide where the message

			




	
	
	
		
 
                // should be sent to. This might end up modifying the message.

			




	
	
	
		
 
                let (peer_connector, peer_port) = match &mut message {

			




	
	
	
		
 
                self.debug_conn(connector_id, &format!("Sending message\n --- {:?}", message));

			




	
	
	
		
 
                let (peer_connector, self_port, peer_port) = match &mut message {

			




	
	
	
		
 
                    MessageContents::Data(contents) => {

			




	
	
	
		
 
                        let port = context.get_port(contents.sending_port);

			




	
	
	
		
 
                        (port.peer_connector, port.peer_id)

			




	
	
	
		
 
                        let port = cur_connector.context.get_port(contents.sending_port);

			




	
	
	
		
 
                        (port.peer_connector, contents.sending_port, port.peer_id)

			




	
	
	
		
 
                    },

			




	
	
	
		
 
                    MessageContents::Sync(contents) => {

			




	
	
	
		
 
                        let connector = contents.to_visit.pop().unwrap();

			




	
	
	
		
 
                        (connector, PortIdLocal::new_invalid())

			




	
	
	
		
 
                        (connector, PortIdLocal::new_invalid(), PortIdLocal::new_invalid())

			




	
	
	
		
 
                    },

			




	
	
	
		
 
                    MessageContents::RequestCommit(contents)=> {

			




	
	
	
		
 
                        let connector = contents.to_visit.pop().unwrap();

			




	
	
	
		
 
                        (connector, PortIdLocal::new_invalid())

			




	
	
	
		
 
                        (connector, PortIdLocal::new_invalid(), PortIdLocal::new_invalid())

			




	
	
	
		
 
                    },

			




	
	
	
		
 
                    MessageContents::ConfirmCommit(contents) => {

			




	
	
	
		
 
                        for to_visit in &contents.to_visit {

			




	
	
		
 
@@ -266,7 +265,7 @@ impl Scheduler {

			




	
	
	
		
 
                            };

			




	
	
	
		
 
                            self.runtime.send_message(*to_visit, message);

			




	
	
	
		
 
                        }

			




	
	
	
		
 
                        (ConnectorId::new_invalid(), PortIdLocal::new_invalid())

			




	
	
	
		
 
                        (ConnectorId::new_invalid(), PortIdLocal::new_invalid(), PortIdLocal::new_invalid())

			




	
	
	
		
 
                    },

			




	
	
	
		
 
                    MessageContents::Control(_) | MessageContents::Ping => {

			




	
	
	
		
 
                        // Never generated by the user's code

			




	
	
		
 
@@ -277,6 +276,17 @@ impl Scheduler {

			




	
	
	
		
 
                // TODO: Maybe clean this up, perhaps special case for

			




	
	
	
		
 
                //  ConfirmCommit can be handled differently.

			




	
	
	
		
 
                if peer_connector.is_valid() {

			




	
	
	
		
 
                    if peer_port.is_valid() {

			




	
	
	
		
 
                        // Sending a message to a port, so the port may not be

			




	
	
	
		
 
                        // closed.

			




	
	
	
		
 
                        let port = cur_connector.context.get_port(self_port);

			




	
	
	
		
 
                        match port.state {

			




	
	
	
		
 
                            PortState::Open => {},

			




	
	
	
		
 
                            PortState::Closed => {

			




	
	
	
		
 
                                todo!("Handling sending over a closed port");

			




	
	
	
		
 
                            }

			




	
	
	
		
 
                        }

			




	
	
	
		
 
                    }

			




	
	
	
		
 
                    let message = Message {

			




	
	
	
		
 
                        sending_connector: connector_id,

			




	
	
	
		
 
                        receiving_port: peer_port,

			




	
	
		
 
@@ -289,15 +299,13 @@ impl Scheduler {

			




	
	
	
		
 

			




	
	
	
		
 
        if !delta_state.new_ports.is_empty() {

			




	
	
	
		
 
            for port in delta_state.new_ports.drain(..) {

			




	
	
	
		
 
                context.ports.push(port);

			




	
	
	
		
 
                cur_connector.context.ports.push(port);

			




	
	
	
		
 
            }

			




	
	
	
		
 
        }

			




	
	
	
		
 

			




	
	
	
		
 
        // Handling any new connectors that were scheduled

			




	
	
	
		
 
        // TODO: Pool outgoing messages to reduce atomic access

			




	
	
	
		
 
        if !delta_state.new_connectors.is_empty() {

			




	
	
	
		
 
            let cur_connector = self.runtime.get_component_private(connector_key);

			




	
	
	
		
 

			




	
	
	
		
 
            for new_connector in delta_state.new_connectors.drain(..) {

			




	
	
	
		
 
                // Add to global registry to obtain key

			




	
	
	
		
 
                let new_key = self.runtime.create_pdl_component(cur_connector, new_connector);

			




	
	
		
 
@@ -307,7 +315,6 @@ impl Scheduler {

			




	
	
	
		
 
                // let the other end of the channel know that the port has

			




	
	
	
		
 
                // changed location.

			




	
	
	
		
 
                for port in &new_connector.context.ports {

			




	
	
	
		
 
                    cur_connector.pending_acks += 1;

			




	
	
	
		
 
                    let reroute_message = cur_connector.router.prepare_reroute(

			




	
	
	
		
 
                        port.self_id, port.peer_id, cur_connector.context.id,

			




	
	
	
		
 
                        port.peer_connector, new_connector.context.id

			




	
	
		
 
@@ -325,6 +332,37 @@ impl Scheduler {

			




	
	
	
		
 
        debug_assert!(delta_state.new_ports.is_empty());

			




	
	
	
		
 
        debug_assert!(delta_state.new_connectors.is_empty());

			




	
	
	
		
 
    }

			




	
	
	
		
 

			




	
	
	
		
 
    fn try_go_to_sleep(&self, connector_key: ConnectorKey, connector: &mut ScheduledConnector) {

			




	
	
	
		
 
        debug_assert_eq!(connector_key.index, connector.context.id.0);

			




	
	
	
		
 
        debug_assert_eq!(connector.public.sleeping.load(Ordering::Acquire), false);

			




	
	
	
		
 

			




	
	
	
		
 
        // This is the running connector, and only the running connector may

			




	
	
	
		
 
        // decide it wants to sleep again.

			




	
	
	
		
 
        connector.public.sleeping.store(true, Ordering::Release);

			




	
	
	
		
 

			




	
	
	
		
 
        // But do to reordering we might have received messages from peers who

			




	
	
	
		
 
        // did not consider us sleeping. If so, then we wake ourselves again.

			




	
	
	
		
 
        if !connector.public.inbox.is_empty() {

			




	
	
	
		
 
            // Try to wake ourselves up

			




	
	
	
		
 
            let should_wake_up_again = connector.public.sleeping

			




	
	
	
		
 
                .compare_exchange(true, false, Ordering::SeqCst, Ordering::Acquire)

			




	
	
	
		
 
                .is_ok();

			




	
	
	
		
 

			




	
	
	
		
 
            if should_wake_up_again {

			




	
	
	
		
 
                self.runtime.push_work(connector_key)

			




	
	
	
		
 
            }

			




	
	
	
		
 
        }

			




	
	
	
		
 
    }

			




	
	
	
		
 

			




	
	
	
		
 
    // TODO: Remove, this is debugging stuff

			




	
	
	
		
 
    fn debug(&self, message: &str) {

			




	
	
	
		
 
        println!("DEBUG [thrd:{:02} conn:  ]: {}", self.scheduler_id, message);

			




	
	
	
		
 
    }

			




	
	
	
		
 

			




	
	
	
		
 
    fn debug_conn(&self, conn: ConnectorId, message: &str) {

			




	
	
	
		
 
        println!("DEBUG [thrd:{:02} conn:{:02}]: {}", self.scheduler_id, conn.0, message);

			




	
	
	
		
 
    }

			




	
	
	
		
 
}

			




	
	
	
		
 

			




	
	
	
		
 
// -----------------------------------------------------------------------------

			




	
	
		
 
@@ -369,7 +407,7 @@ impl ControlMessageHandler {

			




	
	
	
		
 
    /// entry to match against the (hopefully) returned `Ack` message.

			




	
	
	
		
 
    pub fn prepare_closing_channel(

			




	
	
	
		
 
        &mut self, self_port_id: PortIdLocal, peer_port_id: PortIdLocal,

			




	
	
	
		
 
        self_connector_id: connectorId

			




	
	
	
		
 
        self_connector_id: ConnectorId

			




	
	
	
		
 
    ) -> Message {

			




	
	
	
		
 
        let id = self.take_id();

			




	
	
	
		
 

			




	
	
		
 
@@ -425,7 +463,7 @@ impl ControlMessageHandler {

			




	
	
	
		
 
    /// function returns the connector that should retrieve this message.

			




	
	
	
		
 
    pub fn should_reroute(&self, sending_connector: ConnectorId, target_port: PortIdLocal) -> Option<ConnectorId> {

			




	
	
	
		
 
        for entry in &self.active {

			




	
	
	
		
 
            if let ControlVariant::ChangedPort(entry) = entry {

			




	
	
	
		
 
            if let ControlVariant::ChangedPort(entry) = &entry.variant {

			




	
	
	
		
 
                if entry.source_connector == sending_connector &&

			




	
	
	
		
 
                    entry.target_port == target_port {

			




	
	
	
		
 
                    // Need to reroute this message

			




        

    


    
    

    

        

                

                    src/runtime2/tests/mod.rs
                

                

                  
                      
                        

                      ➞

                      
                        
                  

                  
                      
                  
                      
                  
                      
                  
                      
                  
                  
                

                

                    Show inline comments
                    
                

        

        

            



	
	
		
 
@@ -14,7 +14,7 @@ fn runtime_for(num_threads: u32, pdl: &str) -> Runtime {

			




	
	
	
		
 

			




	
	
	
		
 
#[test]

			




	
	
	
		
 
fn test_put_and_get() {

			




	
	
	
		
 
    let rt = runtime_for(1, "

			




	
	
	
		
 
    let rt = runtime_for(4, "

			




	
	
	
		
 
primitive putter(out<bool> sender, u32 loops) {

			




	
	
	
		
 
    u32 index = 0;

			




	
	
	
		
 
    while (index < loops) {

			




	
	
		
 
@@ -33,6 +33,7 @@ primitive getter(in<bool> receiver, u32 loops) {

			




	
	
	
		
 
            print(\"getting!\");

			




	
	
	
		
 
            auto result = get(receiver);

			




	
	
	
		
 
            assert(result);

			




	
	
	
		
 

			




	
	
	
		
 
        }

			




	
	
	
		
 
        index += 1;

			




	
	
	
		
 
    }

			




	
	
		
 
@@ -41,7 +42,7 @@ primitive getter(in<bool> receiver, u32 loops) {

			




	
	
	
		
 

			




	
	
	
		
 
    let mut api = rt.create_interface();

			




	
	
	
		
 
    let channel = api.create_channel();

			




	
	
	
		
 
    let num_loops = 5;

			




	
	
	
		
 
    let num_loops = 100;

			




	
	
	
		
 

			




	
	
	
		
 
    api.create_connector("", "putter", ValueGroup::new_stack(vec![

			




	
	
	
		
 
        Value::Output(PortId(Id{ connector_id: 0, u32_suffix: channel.putter_id.index })),

			




        

    



    


    



    



      

      





    
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