OpenE2K/rust
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Don't use unkillable in UnsafeArc dtor when there's no unwrapper. Close #8382.

Browse Source
This commit is contained in:
Ben Blum 2013-08-07 20:26:15 -04:00
parent ecfc9a8223
commit ee5cfb0c2d
1 changed files with 21 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/libstd/unstable/sync.rs
View File

@ -229,7 +229,6 @@ impl<T> Drop for UnsafeAtomicRcBox<T>{
if self.data.is_null() { if self.data.is_null() {
return; // Happens when destructing an unwrapper's handle. return; // Happens when destructing an unwrapper's handle.
} }
do task::unkillable {
let mut data: ~AtomicRcBoxData<T> = cast::transmute(self.data); let mut data: ~AtomicRcBoxData<T> = cast::transmute(self.data);
// Must be acquire+release, not just release, to make sure this // Must be acquire+release, not just release, to make sure this
// doesn't get reordered to after the unwrapper pointer load. // doesn't get reordered to after the unwrapper pointer load.
@ -243,6 +242,9 @@ impl<T> Drop for UnsafeAtomicRcBox<T>{
// *awake* task with the data. // *awake* task with the data.
match data.unwrapper.take(Acquire) { match data.unwrapper.take(Acquire) {
Some(~(message,response)) => { Some(~(message,response)) => {
let cell = Cell::new((message, response, data));
do task::unkillable {
let (message, response, data) = cell.take();
// Send 'ready' and wait for a response. // Send 'ready' and wait for a response.
message.send(()); message.send(());
// Unkillable wait. Message guaranteed to come. // Unkillable wait. Message guaranteed to come.
@ -253,6 +255,7 @@ impl<T> Drop for UnsafeAtomicRcBox<T>{
// Other task was killed. drop glue takes over. // Other task was killed. drop glue takes over.
} }
} }
}
None => { None => {
// drop glue takes over. // drop glue takes over.
} }
@ -263,7 +266,6 @@ impl<T> Drop for UnsafeAtomicRcBox<T>{
} }
} }
} }
}
/****************************************************************************/ /****************************************************************************/