syndicate-rs/src/spaces.rs

60 lines
1.9 KiB
Rust

use super::V;
use super::dataspace;
use std::sync::Arc;
use preserves::value::Map;
pub struct Spaces {
index: Map<V, dataspace::DataspaceRef>,
}
impl Spaces {
pub fn new() -> Self {
Self { index: Map::new() }
}
pub fn lookup(&mut self, name: &V) -> dataspace::DataspaceRef {
let (is_new, space) = match self.index.get(name) {
Some(s) => (false, s.clone()),
None => {
let s = dataspace::Dataspace::new_ref(name);
self.index.insert(name.clone(), s.clone());
(true, s)
}
};
println!("Dataspace {:?} {}",
name,
if is_new { "created" } else { "accessed" });
space
}
pub fn cleanup(&mut self) {
self.index = self.index.iter()
.filter(|s| s.1.read().unwrap().peer_count() > 0)
.map(|(k,v)| (k.clone(), Arc::clone(v)))
.collect();
}
pub fn stats_string(&self, delta: core::time::Duration) -> String {
let mut v = vec![];
v.push(format!("{} dataspace(s)", self.index.len()));
for (dsname, dsref) in &self.index {
let mut ds = dsref.write().unwrap();
v.push(format!(" {:?}: {} connection(s) {}, {} assertion(s) {}, {} endpoint(s) {}, {} messages/sec",
dsname,
ds.peer_count(),
format!("(+{}/-{})", ds.churn.peers_added, ds.churn.peers_removed),
ds.assertion_count(),
format!("(+{}/-{})", ds.churn.assertions_added, ds.churn.assertions_removed),
ds.endpoint_count(),
format!("(+{}/-{})", ds.churn.endpoints_added, ds.churn.endpoints_removed),
ds.churn.messages_sent as f32 / delta.as_secs() as f32));
ds.churn.reset();
}
v.join("\n")
}
}