Init Event Module #4

Merged
muellerr merged 16 commits from events into main 2022-06-11 12:36:40 +02:00
3 changed files with 83 additions and 15 deletions
Showing only changes of commit e813d7d51c - Show all commits

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@ -1,4 +1,4 @@
pub mod events;
pub mod event_man; pub mod event_man;
pub mod events;
pub mod executable; pub mod executable;
pub mod objects; pub mod objects;

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@ -1,5 +1,5 @@
use std::collections::HashMap;
use crate::core::events::{Event, EventRaw, GroupId}; use crate::core::events::{Event, EventRaw, GroupId};
use std::collections::HashMap;
#[derive(PartialEq, Eq, Hash, Copy, Clone)] #[derive(PartialEq, Eq, Hash, Copy, Clone)]
enum ListenerType { enum ListenerType {
@ -7,41 +7,60 @@ enum ListenerType {
Group(GroupId), Group(GroupId),
} }
pub trait EventRecipient { pub trait EventListener {
type Error; type Error;
fn send_to(&mut self, event: Event) -> Result<(), Self::Error>; fn send_to(&mut self, event: Event) -> Result<(), Self::Error>;
} }
struct Listener<E> { struct Listener<E> {
_ltype: ListenerType, _ltype: ListenerType,
dest: Box<dyn EventRecipient<Error=E>>, dest: Box<dyn EventListener<Error = E>>,
} }
pub trait ReceivesEvent { pub trait ReceivesAllEvent {
fn receive(&mut self) -> Option<Event>; fn receive(&mut self) -> Option<Event>;
} }
pub struct EventManager<E> { pub struct EventManager<E> {
listeners: HashMap<ListenerType, Vec<Listener<E>>>, listeners: HashMap<ListenerType, Vec<Listener<E>>>,
event_receiver: dyn ReceivesEvent, event_receiver: Box<dyn ReceivesAllEvent>,
} }
impl<E> EventManager<E> { impl<E> EventManager<E> {
pub fn subcribe_single(&mut self, event: Event, dest: impl EventRecipient<Error=E> + 'static) { pub fn new(event_receiver: Box<dyn ReceivesAllEvent>) -> Self {
EventManager {
listeners: HashMap::new(),
event_receiver,
}
}
pub fn subcribe_single(&mut self, event: Event, dest: impl EventListener<Error = E> + 'static) {
self.update_listeners(ListenerType::Single(event.raw()), dest); self.update_listeners(ListenerType::Single(event.raw()), dest);
} }
pub fn subscribe_group(&mut self, group_id: GroupId, dest: impl EventRecipient<Error=E> + 'static) { pub fn subscribe_group(
&mut self,
group_id: GroupId,
dest: impl EventListener<Error = E> + 'static,
) {
self.update_listeners(ListenerType::Group(group_id), dest); self.update_listeners(ListenerType::Group(group_id), dest);
} }
fn update_listeners (&mut self, key: ListenerType, dest: impl EventRecipient<Error=E> + 'static) { fn update_listeners(
&mut self,
key: ListenerType,
dest: impl EventListener<Error = E> + 'static,
) {
if let std::collections::hash_map::Entry::Vacant(e) = self.listeners.entry(key) { if let std::collections::hash_map::Entry::Vacant(e) = self.listeners.entry(key) {
e.insert(vec![Listener { _ltype: key, dest: Box::new(dest) }]); e.insert(vec![Listener {
_ltype: key,
dest: Box::new(dest),
}]);
} else { } else {
let vec = self.listeners.get_mut(&key).unwrap(); let vec = self.listeners.get_mut(&key).unwrap();
vec.push(Listener { _ltype: key, dest: Box::new(dest) }); vec.push(Listener {
_ltype: key,
dest: Box::new(dest),
});
} }
} }
@ -77,8 +96,58 @@ impl<E> EventManager<E> {
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {
use super::{EventListener, ReceivesAllEvent};
use crate::core::event_man::EventManager;
use crate::core::events::{Event, Severity};
use std::fmt::Error;
use std::sync::mpsc::{channel, Receiver, SendError, Sender};
struct EventReceiver {
mpsc_receiver: Receiver<Event>,
}
impl ReceivesAllEvent for EventReceiver {
fn receive(&mut self) -> Option<Event> {
self.mpsc_receiver.recv().ok()
}
}
struct MpscEventSenderQueue {
mpsc_sender: Sender<Event>,
}
impl EventListener for MpscEventSenderQueue {
type Error = SendError<Event>;
fn send_to(&mut self, event: Event) -> Result<(), Self::Error> {
self.mpsc_sender.send(event)
}
}
#[test] #[test]
fn basic_test() { fn basic_test() {
let (event_sender, manager_queue) = channel();
let event_man_receiver = EventReceiver {
mpsc_receiver: manager_queue,
};
let mut event_man: EventManager<SendError<Event>> =
EventManager::new(Box::new(event_man_receiver));
let sender_0 = event_sender.clone();
let event_grp_0 = Event::new(Severity::INFO, 0, 0).unwrap();
let event_grp_1_0 = Event::new(Severity::HIGH, 1, 0).unwrap();
let event_grp_1_1 = Event::new(Severity::MEDIUM, 1, 32).unwrap();
let event_grp_1_2 = Event::new(Severity::LOW, 1, 43).unwrap();
let event_grp_2 = Event::new(Severity::HIGH, 32, 0).unwrap();
let (single_event_sender, single_event_receiver) = channel();
let single_event_listener = MpscEventSenderQueue {
mpsc_sender: single_event_sender,
};
let (group_event_sender, group_event_receiver) = channel();
let group_event_listener = MpscEventSenderQueue {
mpsc_sender: group_event_sender,
};
event_man.subscribe_group(event_grp_1_0.group_id(), group_event_listener);
event_sender.send(event_grp_0).expect("Send error occured");
// let event = single_event_receiver.recv().expect("Error receiving event");
// println!("{:?}", event);
} }
} }

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@ -2,7 +2,6 @@ use launchpad::core::events::{Event, Severity};
use std::sync::mpsc::channel; use std::sync::mpsc::channel;
use std::thread; use std::thread;
fn main() { fn main() {
basic_event_test(); basic_event_test();
} }