1 files changed, 0 insertions, 53 deletions
diff --git a/src/libstd/unstable/mod.rs b/src/libstd/unstable/mod.rs
index 51de3caf2ae..e16e6384a4f 100644
--- a/src/libstd/unstable/mod.rs
+++ b/src/libstd/unstable/mod.rs
@@ -68,59 +68,6 @@ fn test_run_in_bare_thread_exchange() {
     }
 }
 
-
-/// Changes the current working directory to the specified
-/// path while acquiring a global lock, then calls `action`.
-/// If the change is successful, releases the lock and restores the
-/// CWD to what it was before, returning true.
-/// Returns false if the directory doesn't exist or if the directory change
-/// is otherwise unsuccessful.
-///
-/// This is used by test cases to avoid cwd races.
-///
-/// # Safety Note
-///
-/// This uses a pthread mutex so descheduling in the action callback
-/// can lead to deadlock. Calling change_dir_locked recursively will
-/// also deadlock.
-pub fn change_dir_locked(p: &Path, action: &fn()) -> bool {
-    #[fixed_stack_segment]; #[inline(never)];
-
-    use os;
-    use os::change_dir;
-    use unstable::sync::atomically;
-    use unstable::finally::Finally;
-
-    unsafe {
-        // This is really sketchy. Using a pthread mutex so descheduling
-        // in the `action` callback can cause deadlock. Doing it in
-        // `task::atomically` to try to avoid that, but ... I don't know
-        // this is all bogus.
-        return do atomically {
-            rust_take_change_dir_lock();
-
-            do (||{
-                let old_dir = os::getcwd();
-                if change_dir(p) {
-                    action();
-                    change_dir(&old_dir)
-                }
-                else {
-                    false
-                }
-            }).finally {
-                rust_drop_change_dir_lock();
-            }
-        }
-    }
-
-    extern {
-        fn rust_take_change_dir_lock();
-        fn rust_drop_change_dir_lock();
-    }
-}
-
-
 /// Dynamically inquire about whether we're running under V.
 /// You should usually not use this unless your test definitely
 /// can't run correctly un-altered. Valgrind is there to help