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use ferris_gc::{Gc, GcRefCell, Trace, Finalize, ferris_gc_main, ApplicationCleanup, LOCAL_GC_STRATEGY, BASIC_STRATEGY_LOCAL_GCS}; | |
use std::{time, thread}; | |
use std::fs::File; | |
use std::io::Write; | |
use std::sync::atomic::Ordering; | |
#[derive(Trace)] | |
struct MyStruct { | |
id: u32, | |
} | |
impl Finalize for MyStruct { | |
fn finalize(&self) { | |
println!("MyStruct in finalize !!"); | |
let mut file = File::create("foo.txt"); | |
match file { | |
Ok(mut f) => { f.write_all(b"Hello, world!") }, | |
Err(e) => { Err(e) }, | |
}; | |
} | |
} | |
#[derive(Trace, Finalize)] | |
struct Counter { | |
count: Gc<u32>, | |
} | |
#[ferris_gc_main] | |
fn main() { | |
{ | |
let counter = Gc::new(2); | |
let gc0 = Gc::new(MyStruct { id: 3 }); | |
let gc1 = GcRefCell::new(MyStruct { id: 4 }); | |
gc1.borrow_mut().id = 5; | |
let gc3 = Gc::new(Counter { count: counter.clone() }); | |
LOCAL_GC_STRATEGY.with(|local_gc_strategy| { | |
local_gc_strategy.borrow_mut().change_strategy(|local_gc, app_active| { | |
thread::spawn(move || { | |
while app_active.load(Ordering::Acquire) { | |
let five_secs = time::Duration::from_millis(5000); | |
thread::sleep(five_secs); | |
unsafe { local_gc.collect(); } | |
} | |
}); | |
None | |
}, | |
|local_gc| { | |
let mut basic_strategy_local_gcs = BASIC_STRATEGY_LOCAL_GCS.write().unwrap(); | |
basic_strategy_local_gcs.push(local_gc); | |
}); | |
let strategy = unsafe { &mut *local_gc_strategy.as_ptr() }; | |
strategy.start(); | |
}); | |
} | |
let ten_secs = time::Duration::from_secs(10); | |
thread::sleep(ten_secs); | |
println!("Hello, GC World !!"); | |
} |
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