55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
use super::V;
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use super::dataspace;
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use std::sync::Arc;
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use preserves::value::Map;
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pub struct Spaces {
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index: Map<V, dataspace::DataspaceRef>,
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}
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impl Spaces {
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pub fn new() -> Self {
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Self { index: Map::new() }
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}
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pub fn lookup(&mut self, name: &V) -> dataspace::DataspaceRef {
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let (is_new, space) = match self.index.get(name) {
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Some(s) => (false, s.clone()),
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None => {
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let s = dataspace::Dataspace::new_ref(name);
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self.index.insert(name.clone(), s.clone());
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(true, s)
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}
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};
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println!("Dataspace {:?} {}",
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name,
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if is_new { "created" } else { "accessed" });
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space
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}
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pub fn cleanup(&mut self) {
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self.index = self.index.iter()
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.filter(|s| s.1.read().unwrap().peer_count() > 0)
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.map(|(k,v)| (k.clone(), Arc::clone(v)))
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.collect();
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}
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pub fn summary_string(&self) -> String {
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let mut v = vec![];
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v.push(format!("{} dataspace(s)", self.index.len()));
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for (dsname, dsref) in &self.index {
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let ds = dsref.read().unwrap();
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v.push(format!(" {:?}: {} connection(s), {} assertion(s), {} endpoint(s)",
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dsname,
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ds.peer_count(),
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ds.assertion_count(),
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ds.endpoint_count()));
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}
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v.join("\n")
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}
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}
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