5 //! C header: [`include/linux/refcount.h`](srctree/include/linux/refcount.h)
16 /// [`include/linux/refcount.h`](srctree/include/linux/refcount.h).
20 pub struct Refcount(Opaque<bindings::refcount_t>);  struct
22 impl Refcount {  impl
23     /// Construct a new [`Refcount`] from an initial value.
39     /// Get the underlying atomic counter that backs the refcount.
42     /// `refcount.h`. If there is no way to achieve the result using APIs in `refcount.h`, then
53     /// Set a refcount's value.
60     /// Increment a refcount.
62     /// It will saturate if overflows and `WARN`. It will also `WARN` if the refcount is 0, as this
73     /// Decrement a refcount.
85     /// Decrement a refcount and test if it is 0.
93     /// Returns true if the resulting refcount is 0, false otherwise.
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
111 unsafe impl Send for Refcount {}  implementation
114 unsafe impl Sync for Refcount {}  implementation