16 use crate::{unprotected, Atomic, Guard, Owned, Shared};
55             let guard = unprotected();  in new()  localVariable
56             let sentinel = sentinel.into_shared(guard);  in new()
70         guard: &Guard,  in push_internal()  argument
74         let next = o.next.load(Acquire, guard);  in push_internal()
79                 .compare_exchange(onto, next, Release, Relaxed, guard);  in push_internal()
85                 .compare_exchange(Shared::null(), new, Release, Relaxed, guard)  in push_internal()
91                     .compare_exchange(onto, new, Release, Relaxed, guard);  in push_internal()
98     pub(crate) fn push(&self, t: T, guard: &Guard) {  in push()  argument
103         let new = Owned::into_shared(new, guard);  in push()
107             let tail = self.tail.load(Acquire, guard);  in push()
110             if self.push_internal(tail, new, guard) {  in push()
118     fn pop_internal(&self, guard: &Guard) -> Result<Option<T>, ()> {  in pop_internal()
119         let head = self.head.load(Acquire, guard);  in pop_internal()
121         let next = h.next.load(Acquire, guard);  in pop_internal()
125                     .compare_exchange(head, next, Release, Relaxed, guard)  in pop_internal()
127                         let tail = self.tail.load(Relaxed, guard);  in pop_internal()
132                                 .compare_exchange(tail, next, Release, Relaxed, guard);  in pop_internal()
134                         guard.defer_destroy(head);  in pop_internal()
146     fn pop_if_internal<F>(&self, condition: F, guard: &Guard) -> Result<Option<T>, ()>  in pop_if_internal()
151         let head = self.head.load(Acquire, guard);  in pop_if_internal()
153         let next = h.next.load(Acquire, guard);  in pop_if_internal()
157                     .compare_exchange(head, next, Release, Relaxed, guard)  in pop_if_internal()
159                         let tail = self.tail.load(Relaxed, guard);  in pop_if_internal()
164                                 .compare_exchange(tail, next, Release, Relaxed, guard);  in pop_if_internal()
166                         guard.defer_destroy(head);  in pop_if_internal()
178     pub(crate) fn try_pop(&self, guard: &Guard) -> Option<T> {  in try_pop()
180             if let Ok(head) = self.pop_internal(guard) {  in try_pop()
190     pub(crate) fn try_pop_if<F>(&self, condition: F, guard: &Guard) -> Option<T>  in try_pop_if()
196             if let Ok(head) = self.pop_if_internal(&condition, guard) {  in try_pop_if()
206             let guard = unprotected();  in drop()  localVariable
208             while self.try_pop(guard).is_some() {}  in drop()
211             let sentinel = self.head.load(Relaxed, guard);  in drop()
235             let guard = &pin();  in push()  localVariable
236             self.queue.push(t, guard);  in push()
240             let guard = &pin();  in is_empty()  localVariable
241             let head = self.queue.head.load(Acquire, guard);  in is_empty()
243             h.next.load(Acquire, guard).is_null()  in is_empty()
247             let guard = &pin();  in try_pop()  localVariable
248             self.queue.try_pop(guard)  in try_pop()