From 5ec5124ea31a8a9fc164a8a04130b742c5d6bf60 Mon Sep 17 00:00:00 2001 From: Robin Mueller Date: Wed, 24 Apr 2024 14:30:45 +0200 Subject: [PATCH] Updated events modules and docs --- satrs-book/src/events.md | 17 +-- satrs-example/pytmtc/common.py | 1 + satrs-example/pytmtc/main.py | 4 +- satrs-example/src/events.rs | 192 +++++++++++++++--------------- satrs-example/src/main.rs | 49 ++++---- satrs-example/src/pus/test.rs | 6 +- satrs-example/src/tmtc/tm_sink.rs | 15 ++- satrs/CHANGELOG.md | 10 ++ satrs/src/event_man.rs | 73 ++++++------ satrs/src/pus/event_man.rs | 98 ++++++++------- satrs/tests/pus_events.rs | 24 ++-- 11 files changed, 257 insertions(+), 232 deletions(-) diff --git a/satrs-book/src/events.md b/satrs-book/src/events.md index 01dbb59..e21aac9 100644 --- a/satrs-book/src/events.md +++ b/satrs-book/src/events.md @@ -1,14 +1,17 @@ # Events -Events can be an extremely important mechanism used for remote systems to monitor unexpected -or expected anomalies and events occuring on these systems. They are oftentimes tied to +Events are an important mechanism used for remote systems to monitor unexpected +or expected anomalies and events occuring on these systems. + +One common use case for events on remote systems is to offer a light-weight publish-subscribe +mechanism and IPC mechanism for software and hardware events which are also packaged as telemetry +(TM) or can trigger a system response. They can also be tied to Fault Detection, Isolation and Recovery (FDIR) operations, which need to happen autonomously. -Events can also be used as a convenient Inter-Process Communication (IPC) mechansism, which is -also observable for the Ground segment. The PUS Service 5 standardizes how the ground interface -for events might look like, but does not specify how other software components might react -to those events. There is the PUS Service 19, which might be used for that purpose, but the -event components recommended by this framework do not really need this service. +The PUS Service 5 standardizes how the ground interface for events might look like, but does not +specify how other software components might react to those events. There is the PUS Service 19, +which might be used for that purpose, but the event components recommended by this framework do not +rely on the present of this service. The following images shows how the flow of events could look like in a system where components can generate events, and where other system components might be interested in those events: diff --git a/satrs-example/pytmtc/common.py b/satrs-example/pytmtc/common.py index 6f56604..a37967e 100644 --- a/satrs-example/pytmtc/common.py +++ b/satrs-example/pytmtc/common.py @@ -10,6 +10,7 @@ class Apid(enum.IntEnum): GENERIC_PUS = 2 ACS = 3 CFDP = 4 + TMTC = 5 class EventSeverity(enum.IntEnum): diff --git a/satrs-example/pytmtc/main.py b/satrs-example/pytmtc/main.py index 23f10b0..a90a011 100755 --- a/satrs-example/pytmtc/main.py +++ b/satrs-example/pytmtc/main.py @@ -144,7 +144,9 @@ class PusHandler(GenericApidHandlerBase): ) src_data = tm_packet.source_data event_u32 = EventU32.unpack(src_data) - _LOGGER.info(f"Received event packet. Event: {event_u32}") + _LOGGER.info( + f"Received event packet. Source APID: {Apid(tm_packet.apid)!r}, Event: {event_u32}" + ) if event_u32.group_id == 0 and event_u32.unique_id == 0: _LOGGER.info("Received test event") elif service == 17: diff --git a/satrs-example/src/events.rs b/satrs-example/src/events.rs index 5d1bdaf..bed3f6f 100644 --- a/satrs-example/src/events.rs +++ b/satrs-example/src/events.rs @@ -8,13 +8,10 @@ use satrs::pus::verification::VerificationReporter; use satrs::pus::EcssTmSender; use satrs::request::UniqueApidTargetId; use satrs::{ - event_man::{ - EventManagerWithBoundedMpsc, EventSendProvider, EventU32SenderMpscBounded, - MpscEventReceiver, - }, + event_man::{EventManagerWithBoundedMpsc, EventSendProvider, EventU32SenderMpscBounded}, pus::{ event_man::{ - DefaultPusEventU32Dispatcher, EventReporter, EventRequest, EventRequestWithToken, + DefaultPusEventU32TmCreator, EventReporter, EventRequest, EventRequestWithToken, }, verification::{TcStateStarted, VerificationReportingProvider, VerificationToken}, }, @@ -40,13 +37,12 @@ impl EventTmHookProvider for EventApidSetter { /// packets. It also handles the verification completion of PUS event service requests. pub struct PusEventHandler { event_request_rx: mpsc::Receiver, - pus_event_dispatcher: DefaultPusEventU32Dispatcher<()>, + pus_event_tm_creator: DefaultPusEventU32TmCreator, pus_event_man_rx: mpsc::Receiver, tm_sender: TmSender, time_provider: CdsTime, timestamp: [u8; 7], verif_handler: VerificationReporter, - event_apid_setter: EventApidSetter, } impl PusEventHandler { @@ -61,9 +57,16 @@ impl PusEventHandler { // All events sent to the manager are routed to the PUS event manager, which generates PUS event // telemetry for each event. - let event_reporter = EventReporter::new(PUS_EVENT_MANAGEMENT.raw(), 0, 0, 128).unwrap(); + let event_reporter = EventReporter::new_with_hook( + PUS_EVENT_MANAGEMENT.raw(), + 0, + 0, + 128, + EventApidSetter::default(), + ) + .unwrap(); let pus_event_dispatcher = - DefaultPusEventU32Dispatcher::new_with_default_backend(event_reporter); + DefaultPusEventU32TmCreator::new_with_default_backend(event_reporter); let pus_event_man_send_provider = EventU32SenderMpscBounded::new( PUS_EVENT_MANAGEMENT.raw(), pus_event_man_tx, @@ -75,13 +78,12 @@ impl PusEventHandler { Self { event_request_rx, - pus_event_dispatcher, + pus_event_tm_creator: pus_event_dispatcher, pus_event_man_rx, time_provider: CdsTime::new_with_u16_days(0, 0), timestamp: [0; 7], verif_handler, tm_sender, - event_apid_setter: EventApidSetter::default(), } } @@ -95,75 +97,105 @@ impl PusEventHandler { .completion_success(&self.tm_sender, started_token, timestamp) .expect("Sending completion success failed"); }; - // handle event requests - if let Ok(event_req) = self.event_request_rx.try_recv() { - match event_req.request { - EventRequest::Enable(event) => { - self.pus_event_dispatcher - .enable_tm_for_event(&event) - .expect("Enabling TM failed"); - update_time(&mut self.time_provider, &mut self.timestamp); - report_completion(event_req, &self.timestamp); - } - EventRequest::Disable(event) => { - self.pus_event_dispatcher - .disable_tm_for_event(&event) - .expect("Disabling TM failed"); - update_time(&mut self.time_provider, &mut self.timestamp); - report_completion(event_req, &self.timestamp); - } + loop { + // handle event requests + match self.event_request_rx.try_recv() { + Ok(event_req) => match event_req.request { + EventRequest::Enable(event) => { + self.pus_event_tm_creator + .enable_tm_for_event(&event) + .expect("Enabling TM failed"); + update_time(&mut self.time_provider, &mut self.timestamp); + report_completion(event_req, &self.timestamp); + } + EventRequest::Disable(event) => { + self.pus_event_tm_creator + .disable_tm_for_event(&event) + .expect("Disabling TM failed"); + update_time(&mut self.time_provider, &mut self.timestamp); + report_completion(event_req, &self.timestamp); + } + }, + Err(e) => match e { + mpsc::TryRecvError::Empty => break, + mpsc::TryRecvError::Disconnected => { + log::warn!("all event request senders have disconnected"); + break; + } + }, } } } pub fn generate_pus_event_tm(&mut self) { - // Perform the generation of PUS event packets - if let Ok(event_msg) = self.pus_event_man_rx.try_recv() { - update_time(&mut self.time_provider, &mut self.timestamp); - let param_vec = event_msg.params().map_or(Vec::new(), |param| { - param.to_vec().expect("failed to convert params to vec") - }); - self.event_apid_setter.next_apid = UniqueApidTargetId::from(event_msg.sender_id()).apid; - self.pus_event_dispatcher - .generate_pus_event_tm_generic( - &self.tm_sender, - &self.timestamp, - event_msg.event(), - Some(¶m_vec), - ) - .expect("Sending TM as event failed"); + loop { + // Perform the generation of PUS event packets + match self.pus_event_man_rx.try_recv() { + Ok(event_msg) => { + update_time(&mut self.time_provider, &mut self.timestamp); + let param_vec = event_msg.params().map_or(Vec::new(), |param| { + param.to_vec().expect("failed to convert params to vec") + }); + // We use the TM modification hook to set the sender APID for each event. + self.pus_event_tm_creator.reporter.tm_hook.next_apid = + UniqueApidTargetId::from(event_msg.sender_id()).apid; + self.pus_event_tm_creator + .generate_pus_event_tm_generic( + &self.tm_sender, + &self.timestamp, + event_msg.event(), + Some(¶m_vec), + ) + .expect("Sending TM as event failed"); + } + Err(e) => match e { + mpsc::TryRecvError::Empty => break, + mpsc::TryRecvError::Disconnected => { + log::warn!("All event senders have disconnected"); + break; + } + }, + } } } } -/// This is a thin wrapper around the event manager which also caches the sender component -/// used to send events to the event manager. -pub struct EventManagerWrapper { +pub struct EventHandler { + pub pus_event_handler: PusEventHandler, event_manager: EventManagerWithBoundedMpsc, - event_sender: mpsc::Sender, } -impl EventManagerWrapper { - pub fn new() -> Self { - // The sender handle is the primary sender handle for all components which want to create events. - // The event manager will receive the RX handle to receive all the events. - let (event_sender, event_man_rx) = mpsc::channel(); - let event_recv = MpscEventReceiver::new(event_man_rx); +impl EventHandler { + pub fn new( + tm_sender: TmSender, + event_rx: mpsc::Receiver, + event_request_rx: mpsc::Receiver, + ) -> Self { + let mut event_manager = EventManagerWithBoundedMpsc::new(event_rx); + let pus_event_handler = PusEventHandler::new( + tm_sender, + create_verification_reporter(PUS_EVENT_MANAGEMENT.id(), PUS_EVENT_MANAGEMENT.apid), + &mut event_manager, + event_request_rx, + ); + Self { - event_manager: EventManagerWithBoundedMpsc::new(event_recv), - event_sender, + pus_event_handler, + event_manager, } } - // Returns a cached event sender to send events to the event manager for routing. - pub fn clone_event_sender(&self) -> mpsc::Sender { - self.event_sender.clone() - } - + #[allow(dead_code)] pub fn event_manager(&mut self) -> &mut EventManagerWithBoundedMpsc { &mut self.event_manager } + pub fn periodic_operation(&mut self) { + self.pus_event_handler.handle_event_requests(); + self.try_event_routing(); + self.pus_event_handler.generate_pus_event_tm(); + } + pub fn try_event_routing(&mut self) { let error_handler = |event_msg: &EventMessageU32, error: EventRoutingError| { self.routing_error_handler(event_msg, error) @@ -177,41 +209,5 @@ impl EventManagerWrapper { } } -pub struct EventHandler { - pub event_man_wrapper: EventManagerWrapper, - pub pus_event_handler: PusEventHandler, -} - -impl EventHandler { - pub fn new( - tm_sender: TmSender, - event_request_rx: mpsc::Receiver, - ) -> Self { - let mut event_man_wrapper = EventManagerWrapper::new(); - let pus_event_handler = PusEventHandler::new( - tm_sender, - create_verification_reporter(PUS_EVENT_MANAGEMENT.id(), PUS_EVENT_MANAGEMENT.apid), - event_man_wrapper.event_manager(), - event_request_rx, - ); - Self { - event_man_wrapper, - pus_event_handler, - } - } - - pub fn clone_event_sender(&self) -> mpsc::Sender { - self.event_man_wrapper.clone_event_sender() - } - - #[allow(dead_code)] - pub fn event_manager(&mut self) -> &mut EventManagerWithBoundedMpsc { - self.event_man_wrapper.event_manager() - } - - pub fn periodic_operation(&mut self) { - self.pus_event_handler.handle_event_requests(); - self.event_man_wrapper.try_event_routing(); - self.pus_event_handler.generate_pus_event_tm(); - } -} +#[cfg(test)] +mod tests {} diff --git a/satrs-example/src/main.rs b/satrs-example/src/main.rs index cf8e050..d6cf6ff 100644 --- a/satrs-example/src/main.rs +++ b/satrs-example/src/main.rs @@ -11,7 +11,7 @@ use crate::events::EventHandler; use crate::interface::udp::DynamicUdpTmHandler; use crate::pus::stack::PusStack; use crate::tmtc::tc_source::{TcSourceTaskDynamic, TcSourceTaskStatic}; -use crate::tmtc::tm_sink::{TmFunnelDynamic, TmFunnelStatic}; +use crate::tmtc::tm_sink::{TmSinkDynamic, TmSinkStatic}; use log::info; use pus::test::create_test_service_dynamic; use satrs::hal::std::tcp_server::ServerConfig; @@ -54,11 +54,11 @@ fn static_tmtc_pool_main() { let shared_tm_pool_wrapper = SharedPacketPool::new(&shared_tm_pool); let shared_tc_pool_wrapper = SharedPacketPool::new(&shared_tc_pool); let (tc_source_tx, tc_source_rx) = mpsc::sync_channel(50); - let (tm_funnel_tx, tm_funnel_rx) = mpsc::sync_channel(50); + let (tm_sink_tx, tm_sink_rx) = mpsc::sync_channel(50); let (tm_server_tx, tm_server_rx) = mpsc::sync_channel(50); - let tm_funnel_tx_sender = - PacketSenderWithSharedPool::new(tm_funnel_tx.clone(), shared_tm_pool_wrapper.clone()); + let tm_sink_tx_sender = + PacketSenderWithSharedPool::new(tm_sink_tx.clone(), shared_tm_pool_wrapper.clone()); let (mgm_handler_composite_tx, mgm_handler_composite_rx) = mpsc::channel::>(); @@ -80,11 +80,12 @@ fn static_tmtc_pool_main() { // Create event handling components // These sender handles are used to send event requests, for example to enable or disable // certain events. + let (event_tx, event_rx) = mpsc::sync_channel(100); let (event_request_tx, event_request_rx) = mpsc::channel::(); // The event task is the core handler to perform the event routing and TM handling as specified // in the sat-rs documentation. - let mut event_handler = EventHandler::new(tm_funnel_tx.clone(), event_request_rx); + let mut event_handler = EventHandler::new(tm_sink_tx.clone(), event_rx, event_request_rx); let (pus_test_tx, pus_test_rx) = mpsc::channel(); let (pus_event_tx, pus_event_rx) = mpsc::channel(); @@ -106,39 +107,39 @@ fn static_tmtc_pool_main() { mode_tc_sender: pus_mode_tx, }; let pus_test_service = create_test_service_static( - tm_funnel_tx_sender.clone(), + tm_sink_tx_sender.clone(), shared_tc_pool.clone(), - event_handler.clone_event_sender(), + event_tx.clone(), pus_test_rx, ); let pus_scheduler_service = create_scheduler_service_static( - tm_funnel_tx_sender.clone(), + tm_sink_tx_sender.clone(), tc_source.clone(), pus_sched_rx, create_sched_tc_pool(), ); let pus_event_service = create_event_service_static( - tm_funnel_tx_sender.clone(), + tm_sink_tx_sender.clone(), shared_tc_pool.clone(), pus_event_rx, event_request_tx, ); let pus_action_service = create_action_service_static( - tm_funnel_tx_sender.clone(), + tm_sink_tx_sender.clone(), shared_tc_pool.clone(), pus_action_rx, request_map.clone(), pus_action_reply_rx, ); let pus_hk_service = create_hk_service_static( - tm_funnel_tx_sender.clone(), + tm_sink_tx_sender.clone(), shared_tc_pool.clone(), pus_hk_rx, request_map.clone(), pus_hk_reply_rx, ); let pus_mode_service = create_mode_service_static( - tm_funnel_tx_sender.clone(), + tm_sink_tx_sender.clone(), shared_tc_pool.clone(), pus_mode_rx, request_map, @@ -156,7 +157,7 @@ fn static_tmtc_pool_main() { let mut tmtc_task = TcSourceTaskStatic::new( shared_tc_pool_wrapper.clone(), tc_source_rx, - PusTcDistributor::new(tm_funnel_tx_sender, pus_router), + PusTcDistributor::new(tm_sink_tx_sender, pus_router), ); let sock_addr = SocketAddr::new(IpAddr::V4(OBSW_SERVER_ADDR), SERVER_PORT); @@ -186,10 +187,10 @@ fn static_tmtc_pool_main() { ) .expect("tcp server creation failed"); - let mut tm_funnel = TmFunnelStatic::new( + let mut tm_sink = TmSinkStatic::new( shared_tm_pool_wrapper, sync_tm_tcp_source, - tm_funnel_rx, + tm_sink_rx, tm_server_tx, ); @@ -209,7 +210,7 @@ fn static_tmtc_pool_main() { mode_leaf_interface, mgm_handler_composite_rx, pus_hk_reply_tx, - tm_funnel_tx, + tm_sink_tx, dummy_spi_interface, shared_mgm_set, ); @@ -240,9 +241,9 @@ fn static_tmtc_pool_main() { info!("Starting TM funnel task"); let jh_tm_funnel = thread::Builder::new() - .name("TM Funnel".to_string()) + .name("tm sink".to_string()) .spawn(move || loop { - tm_funnel.operation(); + tm_sink.operation(); }) .unwrap(); @@ -314,10 +315,11 @@ fn dyn_tmtc_pool_main() { // Create event handling components // These sender handles are used to send event requests, for example to enable or disable // certain events. + let (event_tx, event_rx) = mpsc::sync_channel(100); let (event_request_tx, event_request_rx) = mpsc::channel::(); // The event task is the core handler to perform the event routing and TM handling as specified // in the sat-rs documentation. - let mut event_handler = EventHandler::new(tm_funnel_tx.clone(), event_request_rx); + let mut event_handler = EventHandler::new(tm_funnel_tx.clone(), event_rx, event_request_rx); let (pus_test_tx, pus_test_rx) = mpsc::channel(); let (pus_event_tx, pus_event_rx) = mpsc::channel(); @@ -339,11 +341,8 @@ fn dyn_tmtc_pool_main() { mode_tc_sender: pus_mode_tx, }; - let pus_test_service = create_test_service_dynamic( - tm_funnel_tx.clone(), - event_handler.clone_event_sender(), - pus_test_rx, - ); + let pus_test_service = + create_test_service_dynamic(tm_funnel_tx.clone(), event_tx.clone(), pus_test_rx); let pus_scheduler_service = create_scheduler_service_dynamic( tm_funnel_tx.clone(), tc_source_tx.clone(), @@ -411,7 +410,7 @@ fn dyn_tmtc_pool_main() { ) .expect("tcp server creation failed"); - let mut tm_funnel = TmFunnelDynamic::new(sync_tm_tcp_source, tm_funnel_rx, tm_server_tx); + let mut tm_funnel = TmSinkDynamic::new(sync_tm_tcp_source, tm_funnel_rx, tm_server_tx); let (mgm_handler_mode_reply_to_parent_tx, _mgm_handler_mode_reply_to_parent_rx) = mpsc::channel(); diff --git a/satrs-example/src/pus/test.rs b/satrs-example/src/pus/test.rs index 583b72c..585e93b 100644 --- a/satrs-example/src/pus/test.rs +++ b/satrs-example/src/pus/test.rs @@ -23,7 +23,7 @@ use super::HandlingStatus; pub fn create_test_service_static( tm_sender: PacketSenderWithSharedPool, tc_pool: SharedStaticMemoryPool, - event_sender: mpsc::Sender, + event_sender: mpsc::SyncSender, pus_test_rx: mpsc::Receiver, ) -> TestCustomServiceWrapper { let pus17_handler = PusService17TestHandler::new(PusServiceHelper::new( @@ -41,7 +41,7 @@ pub fn create_test_service_static( pub fn create_test_service_dynamic( tm_funnel_tx: mpsc::Sender, - event_sender: mpsc::Sender, + event_sender: mpsc::SyncSender, pus_test_rx: mpsc::Receiver, ) -> TestCustomServiceWrapper { let pus17_handler = PusService17TestHandler::new(PusServiceHelper::new( @@ -61,7 +61,7 @@ pub struct TestCustomServiceWrapper, - pub test_srv_event_sender: mpsc::Sender, + pub test_srv_event_sender: mpsc::SyncSender, } impl diff --git a/satrs-example/src/tmtc/tm_sink.rs b/satrs-example/src/tmtc/tm_sink.rs index 955a997..0771a79 100644 --- a/satrs-example/src/tmtc/tm_sink.rs +++ b/satrs-example/src/tmtc/tm_sink.rs @@ -70,18 +70,23 @@ impl TmFunnelCommon { } fn packet_printout(tm: &PusTmZeroCopyWriter) { - info!("Sending PUS TM[{},{}]", tm.service(), tm.subservice()); + info!( + "Sending PUS TM[{},{}] with APID {}", + tm.service(), + tm.subservice(), + tm.apid() + ); } } -pub struct TmFunnelStatic { +pub struct TmSinkStatic { common: TmFunnelCommon, shared_tm_store: SharedPacketPool, tm_funnel_rx: mpsc::Receiver, tm_server_tx: mpsc::SyncSender, } -impl TmFunnelStatic { +impl TmSinkStatic { pub fn new( shared_tm_store: SharedPacketPool, sync_tm_tcp_source: SyncTcpTmSource, @@ -121,13 +126,13 @@ impl TmFunnelStatic { } } -pub struct TmFunnelDynamic { +pub struct TmSinkDynamic { common: TmFunnelCommon, tm_funnel_rx: mpsc::Receiver, tm_server_tx: mpsc::Sender, } -impl TmFunnelDynamic { +impl TmSinkDynamic { pub fn new( sync_tm_tcp_source: SyncTcpTmSource, tm_funnel_rx: mpsc::Receiver, diff --git a/satrs/CHANGELOG.md b/satrs/CHANGELOG.md index eeab142..4bdba43 100644 --- a/satrs/CHANGELOG.md +++ b/satrs/CHANGELOG.md @@ -8,6 +8,16 @@ and this project adheres to [Semantic Versioning](http://semver.org/). # [unreleased] +# [v0.2.0-rc.5] 2024-04-23 + +## Changed + +- Removed `MpscEventReceiver`, the `EventReceiveProvider` trait is implemented directly + on `mpsc::Receiver>` +- Renamed `PusEventDispatcher` to `PusEventTmCreatorWithMap`. +- Renamed `DefaultPusEventU32Dispatcher` to `DefaultPusEventU32EventCreator`. +- Renamed `PusEventMgmtBackendProvider` renamed to `PusEventReportingMap`. + # [v0.2.0-rc.4] 2024-04-23 ## Changed diff --git a/satrs/src/event_man.rs b/satrs/src/event_man.rs index 38752eb..8e53f43 100644 --- a/satrs/src/event_man.rs +++ b/satrs/src/event_man.rs @@ -1,14 +1,12 @@ //! Event management and forwarding //! -//! This module provides components to perform event routing. The most important component for this -//! task is the [EventManager]. It receives all events and then routes them to event subscribers -//! where appropriate. One common use case for satellite systems is to offer a light-weight -//! publish-subscribe mechanism and IPC mechanism for software and hardware events which are also -//! packaged as telemetry (TM) or can trigger a system response. -//! //! It is recommended to read the //! [sat-rs book chapter](https://absatsw.irs.uni-stuttgart.de/projects/sat-rs/book/events.html) -//! about events first: +//! about events first. +//! +//! This module provides components to perform event routing. The most important component for this +//! task is the [EventManager]. It receives all events and then routes them to event subscribers +//! where appropriate. //! //! The event manager has a listener table abstracted by the [ListenerMapProvider], which maps //! listener groups identified by [ListenerKey]s to a [listener ID][ComponentId]. @@ -21,8 +19,8 @@ //! //! 1. Provide a concrete [EventReceiveProvider] implementation. This abstraction allow to use different //! message queue backends. A straightforward implementation where dynamic memory allocation is -//! not a big concern could use [std::sync::mpsc::channel] to do this and is provided in -//! form of the [MpscEventReceiver]. +//! not a big concern would be to use the [std::sync::mpsc::Receiver] handle. The trait is +//! already implemented for this type. //! 2. To set up event creators, create channel pairs using some message queue implementation. //! Each event creator gets a (cloned) sender component which allows it to send events to the //! manager. @@ -44,6 +42,12 @@ //! You can check [integration test](https://egit.irs.uni-stuttgart.de/rust/sat-rs/src/branch/main/satrs/tests/pus_events.rs) //! for a concrete example using multi-threading where events are routed to //! different threads. +//! +//! The [satrs-example](https://egit.irs.uni-stuttgart.de/rust/sat-rs/src/branch/main/satrs-example) +//! also contains a full event manager instance and exposes a test event via the PUS test service. +//! The [PUS event](https://egit.irs.uni-stuttgart.de/rust/sat-rs/src/branch/main/satrs-example/src/pus/event.rs) +//! module and the generic [events module](https://egit.irs.uni-stuttgart.de/rust/sat-rs/src/branch/main/satrs-example/src/events.rs) +//! show how the event management modules can be integrated into a more complex software. use crate::events::{EventU16, EventU32, GenericEvent, LargestEventRaw, LargestGroupIdRaw}; use crate::params::Params; use crate::queue::GenericSendError; @@ -157,9 +161,10 @@ pub trait SenderMapProvider< /// * `SenderMap`: [SenderMapProvider] which maps channel IDs to send providers. /// * `ListenerMap`: [ListenerMapProvider] which maps listener keys to channel IDs. /// * `EventSender`: [EventSendProvider] contained within the sender map which sends the events. -/// * `Ev`: The event type. This type must implement the [GenericEvent]. Currently only [EventU32] +/// * `Event`: The event type. This type must implement the [GenericEvent]. Currently only [EventU32] /// and [EventU16] are supported. -/// * `Data`: Auxiliary data which is sent with the event to provide optional context information +/// * `ParamProvider`: Auxiliary data which is sent with the event to provide optional context +/// information pub struct EventManager< EventReceiver: EventReceiveProvider, SenderMap: SenderMapProvider, @@ -331,11 +336,11 @@ pub mod alloc_mod { /// Helper type which constrains the sender map and listener map generics to the [DefaultSenderMap] /// and the [DefaultListenerMap]. It uses regular mpsc channels as the message queue backend. - pub type EventManagerWithMpsc = EventManager< - MpscEventReceiver, - DefaultSenderMap, EV, AUX>, + pub type EventManagerWithMpsc = EventManager< + EventU32ReceiverMpsc, + DefaultSenderMap, Event, ParamProvider>, DefaultListenerMap, - EventSenderMpsc, + EventSenderMpsc, >; /// Helper type which constrains the sender map and listener map generics to the [DefaultSenderMap] @@ -343,7 +348,7 @@ pub mod alloc_mod { /// [bounded mpsc senders](https://doc.rust-lang.org/std/sync/mpsc/struct.SyncSender.html) as the /// message queue backend. pub type EventManagerWithBoundedMpsc = EventManager< - MpscEventReceiver, + EventU32ReceiverMpsc, DefaultSenderMap, Event, ParamProvider>, DefaultListenerMap, EventSenderMpscBounded, @@ -479,20 +484,16 @@ pub mod std_mod { use super::*; use std::sync::mpsc; - pub struct MpscEventReceiver { - receiver: mpsc::Receiver>, - } - - impl MpscEventReceiver { - pub fn new(receiver: mpsc::Receiver>) -> Self { - Self { receiver } - } - } - impl EventReceiveProvider for MpscEventReceiver { + impl + EventReceiveProvider + for mpsc::Receiver> + { type Error = GenericReceiveError; - fn try_recv_event(&self) -> Result>, Self::Error> { - match self.receiver.try_recv() { + fn try_recv_event( + &self, + ) -> Result>, Self::Error> { + match self.try_recv() { Ok(msg) => Ok(Some(msg)), Err(e) => match e { mpsc::TryRecvError::Empty => Ok(None), @@ -504,8 +505,10 @@ pub mod std_mod { } } - pub type MpscEventU32Receiver = MpscEventReceiver; - pub type MpscEventU16Receiver = MpscEventReceiver; + pub type EventU32ReceiverMpsc = + mpsc::Receiver>; + pub type EventU16ReceiverMpsc = + mpsc::Receiver>; /// Generic event sender which uses a regular [mpsc::Sender] as the messaging backend to /// send events. @@ -624,9 +627,8 @@ mod tests { } fn generic_event_man() -> (mpsc::Sender, EventManagerWithMpsc) { - let (event_sender, manager_queue) = mpsc::channel(); - let event_man_receiver = MpscEventReceiver::new(manager_queue); - (event_sender, EventManager::new(event_man_receiver)) + let (event_sender, event_receiver) = mpsc::channel(); + (event_sender, EventManager::new(event_receiver)) } #[test] @@ -793,9 +795,8 @@ mod tests { let error_handler = |event_msg: &EventMessageU32, e: EventRoutingError| { panic!("routing error occurred for event {:?}: {:?}", event_msg, e); }; - let (event_sender, manager_queue) = mpsc::channel(); - let event_man_receiver = MpscEventReceiver::new(manager_queue); - let mut event_man = EventManagerWithMpsc::new(event_man_receiver); + let (event_sender, event_receiver) = mpsc::channel(); + let mut event_man = EventManagerWithMpsc::new(event_receiver); let event_0 = EventU32::new(Severity::INFO, 0, 5).unwrap(); let event_1 = EventU32::new(Severity::HIGH, 1, 0).unwrap(); let (event_0_tx_0, all_events_rx) = mpsc::channel(); diff --git a/satrs/src/pus/event_man.rs b/satrs/src/pus/event_man.rs index b8ddb6b..4a123f9 100644 --- a/satrs/src/pus/event_man.rs +++ b/satrs/src/pus/event_man.rs @@ -28,7 +28,7 @@ pub use heapless_mod::*; /// structure to track disabled events. A more primitive and embedded friendly /// solution could track this information in a static or pre-allocated list which contains /// the disabled events. -pub trait PusEventMgmtBackendProvider { +pub trait PusEventReportingMapProvider { type Error; fn event_enabled(&self, event: &Event) -> bool; @@ -56,7 +56,7 @@ pub mod heapless_mod { { } - impl PusEventMgmtBackendProvider + impl PusEventReportingMapProvider for HeaplessPusMgmtBackendProvider { type Error = (); @@ -105,20 +105,23 @@ impl From for EventManError { pub mod alloc_mod { use core::marker::PhantomData; - use crate::events::EventU16; + use crate::{ + events::EventU16, + pus::event::{DummyEventHook, EventTmHookProvider}, + }; use super::*; /// Default backend provider which uses a hash set as the event reporting status container - /// like mentioned in the example of the [PusEventMgmtBackendProvider] documentation. + /// like mentioned in the example of the [PusEventReportingMapProvider] documentation. /// /// This provider is a good option for host systems or larger embedded systems where /// the expected occasional memory allocation performed by the [HashSet] is not an issue. - pub struct DefaultPusEventMgmtBackend { + pub struct DefaultPusEventReportingMap { disabled: HashSet, } - impl Default for DefaultPusEventMgmtBackend { + impl Default for DefaultPusEventReportingMap { fn default() -> Self { Self { disabled: HashSet::default(), @@ -126,51 +129,54 @@ pub mod alloc_mod { } } - impl PusEventMgmtBackendProvider - for DefaultPusEventMgmtBackend + impl + PusEventReportingMapProvider for DefaultPusEventReportingMap { type Error = (); - fn event_enabled(&self, event: &EV) -> bool { + fn event_enabled(&self, event: &Event) -> bool { !self.disabled.contains(event) } - fn enable_event_reporting(&mut self, event: &EV) -> Result { + fn enable_event_reporting(&mut self, event: &Event) -> Result { Ok(self.disabled.remove(event)) } - fn disable_event_reporting(&mut self, event: &EV) -> Result { + fn disable_event_reporting(&mut self, event: &Event) -> Result { Ok(self.disabled.insert(*event)) } } - pub struct PusEventDispatcher< - B: PusEventMgmtBackendProvider, - EV: GenericEvent, - E, + pub struct PusEventTmCreatorWithMap< + ReportingMap: PusEventReportingMapProvider, + Event: GenericEvent, + EventTmHook: EventTmHookProvider = DummyEventHook, > { - reporter: EventReporter, - backend: B, - phantom: PhantomData<(E, EV)>, + pub reporter: EventReporter, + reporting_map: ReportingMap, + phantom: PhantomData, } - impl, Event: GenericEvent, E> - PusEventDispatcher + impl< + ReportingMap: PusEventReportingMapProvider, + Event: GenericEvent, + EventTmHook: EventTmHookProvider, + > PusEventTmCreatorWithMap { - pub fn new(reporter: EventReporter, backend: B) -> Self { + pub fn new(reporter: EventReporter, backend: ReportingMap) -> Self { Self { reporter, - backend, + reporting_map: backend, phantom: PhantomData, } } - pub fn enable_tm_for_event(&mut self, event: &Event) -> Result { - self.backend.enable_event_reporting(event) + pub fn enable_tm_for_event(&mut self, event: &Event) -> Result { + self.reporting_map.enable_event_reporting(event) } - pub fn disable_tm_for_event(&mut self, event: &Event) -> Result { - self.backend.disable_event_reporting(event) + pub fn disable_tm_for_event(&mut self, event: &Event) -> Result { + self.reporting_map.disable_event_reporting(event) } pub fn generate_pus_event_tm_generic( @@ -180,7 +186,7 @@ pub mod alloc_mod { event: Event, params: Option<&[u8]>, ) -> Result { - if !self.backend.event_enabled(&event) { + if !self.reporting_map.event_enabled(&event) { return Ok(false); } match event.severity() { @@ -208,31 +214,33 @@ pub mod alloc_mod { } } - impl - PusEventDispatcher, EV, ()> + impl + PusEventTmCreatorWithMap, Event, EventTmHook> { - pub fn new_with_default_backend(reporter: EventReporter) -> Self { + pub fn new_with_default_backend(reporter: EventReporter) -> Self { Self { reporter, - backend: DefaultPusEventMgmtBackend::default(), + reporting_map: DefaultPusEventReportingMap::default(), phantom: PhantomData, } } } - impl, E> PusEventDispatcher { + impl> + PusEventTmCreatorWithMap + { pub fn enable_tm_for_event_with_sev( &mut self, event: &EventU32TypedSev, - ) -> Result { - self.backend.enable_event_reporting(event.as_ref()) + ) -> Result { + self.reporting_map.enable_event_reporting(event.as_ref()) } pub fn disable_tm_for_event_with_sev( &mut self, event: &EventU32TypedSev, - ) -> Result { - self.backend.disable_event_reporting(event.as_ref()) + ) -> Result { + self.reporting_map.disable_event_reporting(event.as_ref()) } pub fn generate_pus_event_tm( @@ -246,10 +254,10 @@ pub mod alloc_mod { } } - pub type DefaultPusEventU16Dispatcher = - PusEventDispatcher, EventU16, E>; - pub type DefaultPusEventU32Dispatcher = - PusEventDispatcher, EventU32, E>; + pub type DefaultPusEventU16TmCreator = + PusEventTmCreatorWithMap, EventU16, EventTmHook>; + pub type DefaultPusEventU32TmCreator = + PusEventTmCreatorWithMap, EventU32, EventTmHook>; } #[cfg(test)] mod tests { @@ -265,16 +273,16 @@ mod tests { const TEST_APID: u16 = 0x02; const TEST_ID: UniqueApidTargetId = UniqueApidTargetId::new(TEST_APID, 0x05); - fn create_basic_man_1() -> DefaultPusEventU32Dispatcher<()> { + fn create_basic_man_1() -> DefaultPusEventU32TmCreator { let reporter = EventReporter::new(TEST_ID.raw(), TEST_APID, 0, 128) .expect("Creating event repoter failed"); - PusEventDispatcher::new_with_default_backend(reporter) + PusEventTmCreatorWithMap::new_with_default_backend(reporter) } - fn create_basic_man_2() -> DefaultPusEventU32Dispatcher<()> { + fn create_basic_man_2() -> DefaultPusEventU32TmCreator { let reporter = EventReporter::new(TEST_ID.raw(), TEST_APID, 0, 128) .expect("Creating event repoter failed"); - let backend = DefaultPusEventMgmtBackend::default(); - PusEventDispatcher::new(reporter, backend) + let backend = DefaultPusEventReportingMap::default(); + PusEventTmCreatorWithMap::new(reporter, backend) } #[test] diff --git a/satrs/tests/pus_events.rs b/satrs/tests/pus_events.rs index a5c3061..62bb8b0 100644 --- a/satrs/tests/pus_events.rs +++ b/satrs/tests/pus_events.rs @@ -1,11 +1,11 @@ use satrs::event_man::{ EventManagerWithMpsc, EventMessage, EventMessageU32, EventRoutingError, EventSendProvider, - EventU32SenderMpsc, MpscEventU32Receiver, + EventU32SenderMpsc, }; use satrs::events::{EventU32, EventU32TypedSev, Severity, SeverityInfo}; use satrs::params::U32Pair; use satrs::params::{Params, ParamsHeapless, WritableToBeBytes}; -use satrs::pus::event_man::{DefaultPusEventMgmtBackend, EventReporter, PusEventDispatcher}; +use satrs::pus::event_man::{DefaultPusEventReportingMap, EventReporter, PusEventTmCreatorWithMap}; use satrs::pus::test_util::TEST_COMPONENT_ID_0; use satrs::request::UniqueApidTargetId; use satrs::tmtc::PacketAsVec; @@ -29,18 +29,18 @@ pub enum CustomTmSenderError { #[test] fn test_threaded_usage() { - let (event_sender, event_man_receiver) = mpsc::channel(); - let event_receiver = MpscEventU32Receiver::new(event_man_receiver); - let mut event_man = EventManagerWithMpsc::new(event_receiver); + let (event_tx, event_rx) = mpsc::sync_channel(100); + let mut event_man = EventManagerWithMpsc::new(event_rx); let (pus_event_man_tx, pus_event_man_rx) = mpsc::channel(); let pus_event_man_send_provider = EventU32SenderMpsc::new(1, pus_event_man_tx); event_man.subscribe_all(pus_event_man_send_provider.target_id()); event_man.add_sender(pus_event_man_send_provider); - let (event_tx, event_rx) = mpsc::channel::(); + let (event_packet_tx, event_packet_rx) = mpsc::channel::(); let reporter = EventReporter::new(TEST_ID.raw(), 0x02, 0, 128).expect("Creating event reporter failed"); - let pus_event_man = PusEventDispatcher::new(reporter, DefaultPusEventMgmtBackend::default()); + let pus_event_man = + PusEventTmCreatorWithMap::new(reporter, DefaultPusEventReportingMap::default()); let error_handler = |event_msg: &EventMessageU32, error: EventRoutingError| { panic!("received routing error for event {event_msg:?}: {error:?}"); }; @@ -54,7 +54,7 @@ fn test_threaded_usage() { Ok(event_msg) => { let gen_event = |aux_data| { pus_event_man.generate_pus_event_tm_generic( - &event_tx, + &event_packet_tx, &EMPTY_STAMP, event_msg.event(), aux_data, @@ -100,14 +100,14 @@ fn test_threaded_usage() { // Event sender and TM checker thread let jh1 = thread::spawn(move || { - event_sender + event_tx .send(EventMessage::new( TEST_COMPONENT_ID_0.id(), INFO_EVENT.into(), )) .expect("Sending info event failed"); loop { - match event_rx.try_recv() { + match event_packet_rx.try_recv() { // Event TM received successfully Ok(event_tm) => { let tm = PusTmReader::new(event_tm.packet.as_slice(), 7) @@ -129,7 +129,7 @@ fn test_threaded_usage() { } } } - event_sender + event_tx .send(EventMessage::new_with_params( TEST_COMPONENT_ID_0.id(), LOW_SEV_EVENT, @@ -137,7 +137,7 @@ fn test_threaded_usage() { )) .expect("Sending low severity event failed"); loop { - match event_rx.try_recv() { + match event_packet_rx.try_recv() { // Event TM received successfully Ok(event_tm) => { let tm = PusTmReader::new(event_tm.packet.as_slice(), 7) -- 2.43.0