Lines Matching +full:reference +full:- +full:sync

1 // SPDX-License-Identifier: GPL-2.0
3 //! Atomic reference counting.
8 use crate::sync::atomic::Atomic;
11 /// Atomic reference counter.
25     /// The initial value should be non-saturated.
28     pub fn new(value: i32) -> Self {  in new()
35     fn as_ptr(&self) -> *mut bindings::refcount_t {  in as_ptr()
45     pub fn as_atomic(&self) -> &Atomic<i32> {  in as_atomic()
47         // SAFETY: `refcount_t` is a transparent wrapper of `atomic_t`, which is an atomic 32-bit  in as_atomic()
48         // integer that is layout-wise compatible with `Atomic<i32>`. All values are valid for  in as_atomic()
63     /// represents a possible use-after-free condition.
65     /// Provides no memory ordering, it is assumed that caller already has a reference on the
97     /// A common pattern of using `Refcount` is to free memory when the reference count reaches
98     /// zero. This means that the reference to `Refcount` could become invalid after calling this
99     /// function. This is fine as long as the reference to `Refcount` is no longer used when this
101     /// <https://github.com/rust-lang/rust/issues/55005>.
104     pub fn dec_and_test(&self) -> bool {  in dec_and_test()
110 // SAFETY: `refcount_t` is thread-safe.
113 // SAFETY: `refcount_t` is thread-safe.
114 unsafe impl Sync for Refcount {}