Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-03 04:30:10 +01:00
Code Issues Projects Releases Packages Wiki Activity

Revert "Write poison to canary when removing item from diagnostic hashmap"

Browse source 
This reverts commit b547e96b44.
This commit is contained in:
Manish Goregaokar 2017-10-23 13:45:17 -07:00
parent 2931e71d40
commit f9eff7f546
1 changed files with 0 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

9
components/hashglobe/src/diagnostic.rs
View file

@ -1,7 +1,6 @@
use hash_map::HashMap;
use std::borrow::Borrow;
use std::hash::{BuildHasher, Hash};
use std::ptr;
use FailedAllocationError;
@ -10,11 +9,6 @@ const CANARY: usize = 0x42cafe99;
#[cfg(target_pointer_width = "64")]
const CANARY: usize = 0x42cafe9942cafe99;
#[cfg(target_pointer_width = "32")]
const POISON: usize = 0xdeadbeef;
#[cfg(target_pointer_width = "64")]
const POISON: usize = 0xdeadbeefdeadbeef;
#[derive(Clone, Debug)]
enum JournalEntry {
Insert(usize),
@ -136,9 +130,6 @@ impl<K: Hash + Eq, V, S: BuildHasher> DiagnosticHashMap<K, V, S>
{
assert!(!self.readonly);
self.journal.push(JournalEntry::Remove(self.map.make_hash(k).inspect()));
if let Some(v) = self.map.get_mut(k) {
unsafe { ptr::write_volatile(&mut v.0, POISON); }
}
self.map.remove(k).map(|x| x.1)
}