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Encapsulate to-be-cleaned-up refcounted pointers.

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This will allow us to make them Send in the future.
This commit is contained in:
Ms2ger 2015-01-21 20:04:51 +01:00
parent 8df0ee2bb5
commit 7d1b567744
2 changed files with 9 additions and 5 deletions
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9
components/script/dom/bindings/refcounted.rs
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@ -39,6 +39,9 @@ use std::sync::{Arc, Mutex};
thread_local!(pub static LIVE_REFERENCES: Rc<RefCell<Option<LiveDOMReferences>>> = Rc::new(RefCell::new(None)))
/// A pointer to a Rust DOM object that needs to be destroyed.
pub struct TrustedReference(*const libc::c_void);
/// A safe wrapper around a raw pointer to a DOM object that can be
/// shared among tasks for use in asynchronous operations. The underlying
/// DOM object is guaranteed to live at least as long as the last outstanding
@ -108,7 +111,8 @@ impl<T: Reflectable> Drop for Trusted<T> {
assert!(*refcount > 0);
*refcount -= 1;
if *refcount == 0 {
self.script_chan.send(ScriptMsg::RefcountCleanup(self.ptr));
self.script_chan.send(
ScriptMsg::RefcountCleanup(TrustedReference(self.ptr)));
}
}
}
@ -151,7 +155,8 @@ impl LiveDOMReferences {
}
/// Unpin the given DOM object if its refcount is 0.
pub fn cleanup(cx: *mut JSContext, raw_reflectable: *const libc::c_void) {
pub fn cleanup(cx: *mut JSContext, raw_reflectable: TrustedReference) {
let TrustedReference(raw_reflectable) = raw_reflectable;
LIVE_REFERENCES.with(|ref r| {
let r = r.borrow();
let live_references = r.as_ref().unwrap();