10 releases
0.2.8 | Jul 26, 2023 |
---|---|
0.2.7 | Jul 25, 2023 |
0.1.5 |
|
#229 in Memory management
31KB
855 lines
ReGc
A garbage collector that mixes Reference counting and mark sweeping
Example
Rust
env_logger::init();
struct Foo<'c> {
r: std::cell::RefCell<Option<GcObject<'c, Self>>>,
}
impl<'c> Drop for Foo<'c> {
fn drop(&mut self) {
println!("Drop for Foo");
}
}
impl<'c> GcTarget<'c> for Foo<'c> {
fn trace(&self, token: &mut GcTraceToken<'c>) {
self.r.trace(token);
}
}
let context = GcContext::new();
let x = context.alloc(Foo {
r: std::cell::RefCell::new(None),
});
*x.r.borrow_mut() = Some(x.downgrade());
context.gc();
*x.r.borrow_mut() = None;
Output
[2023-07-18T00:56:30Z TRACE regc] alloc regc::test::Foo 0x2876afc19e0
[2023-07-18T00:56:30Z INFO regc] call gc
[2023-07-18T00:56:30Z INFO regc] begin gc
[2023-07-18T00:56:30Z INFO regc] trace 1 target
[2023-07-18T00:56:30Z INFO regc] hold 1 target
[2023-07-18T00:56:30Z INFO regc] drop 0 target
[2023-07-18T00:56:30Z INFO regc] end gc 19µs
[2023-07-18T00:56:30Z TRACE regc] drop 0x2876afc19e0
[2023-07-18T00:56:30Z TRACE regc] free 0x2876afc19e0
[2023-07-18T00:56:30Z INFO regc] drop gc
[2023-07-18T00:56:30Z INFO regc] call gc
[2023-07-18T00:56:30Z INFO regc] begin gc
[2023-07-18T00:56:30Z INFO regc] end gc 200ns
Drop for Foo
Dependencies
~88KB