Files
addr2line
adler
aho_corasick
ansi_term
arraydeque
as_slice
atty
backtrace
base64
bincode_core
bitflags
byteorder
bytes
capnp
capnp_futures
capnp_rpc
cfg_if
chrono
clap
ctrlc
derivative
dlib
downcast_rs
enumflags2
enumflags2_derive
evdev_rs
evdev_sys
failure
failure_derive
flexi_logger
futures
futures_channel
futures_core
futures_executor
futures_io
futures_macro
futures_sink
futures_task
futures_util
async_await
future
io
lock
sink
stream
task
generic_array
getrandom
gimli
glob
hash32
heapless
hid_io_core
hid_io_protocol
hidapi
install_service
lazy_static
libc
libloading
libudev_sys
log
memchr
memmap
miniz_oxide
mio
nanoid
nix
num_cpus
num_enum
num_enum_derive
num_integer
num_traits
object
once_cell
open
pem
pin_project_lite
pin_utils
ppv_lite86
proc_macro2
proc_macro_hack
proc_macro_nested
quote
rand
rand_chacha
rand_core
rcgen
regex
regex_syntax
remove_dir_all
ring
rustc_demangle
rustls
scoped_tls
sct
serde
serde_derive
slab
smallvec
spin
stable_deref_trait
strsim
syn
synstructure
sys_info
tempfile
textwrap
thiserror
thiserror_impl
time
tokio
future
io
loom
macros
net
park
runtime
stream
sync
task
time
util
tokio_macros
tokio_rustls
tokio_util
typenum
udev
uhid_virt
uhidrs_sys
unicode_width
unicode_xid
untrusted
vec_map
wayland_client
wayland_commons
wayland_sys
webpki
which
x11
xcb
xkbcommon
yansi
yasna
zwp_virtual_keyboard
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
//! Implementation of an atomic u64 cell. On 64 bit platforms, this is a
//! re-export of `AtomicU64`. On 32 bit platforms, this is implemented using a
//! `Mutex`.

pub(crate) use self::imp::AtomicU64;

// `AtomicU64` can only be used on targets with `target_has_atomic` is 64 or greater.
// Once `cfg_target_has_atomic` feature is stable, we can replace it with
// `#[cfg(target_has_atomic = "64")]`.
// Refs: https://github.com/rust-lang/rust/tree/master/src/librustc_target
#[cfg(not(any(target_arch = "arm", target_arch = "mips", target_arch = "powerpc")))]
mod imp {
    pub(crate) use std::sync::atomic::AtomicU64;
}

#[cfg(any(target_arch = "arm", target_arch = "mips", target_arch = "powerpc"))]
mod imp {
    use std::sync::atomic::Ordering;
    use std::sync::Mutex;

    #[derive(Debug)]
    pub(crate) struct AtomicU64 {
        inner: Mutex<u64>,
    }

    impl AtomicU64 {
        pub(crate) fn new(val: u64) -> AtomicU64 {
            AtomicU64 {
                inner: Mutex::new(val),
            }
        }

        pub(crate) fn load(&self, _: Ordering) -> u64 {
            *self.inner.lock().unwrap()
        }

        pub(crate) fn store(&self, val: u64, _: Ordering) {
            *self.inner.lock().unwrap() = val;
        }

        pub(crate) fn fetch_or(&self, val: u64, _: Ordering) -> u64 {
            let mut lock = self.inner.lock().unwrap();
            let prev = *lock;
            *lock = prev | val;
            prev
        }

        pub(crate) fn compare_and_swap(&self, old: u64, new: u64, _: Ordering) -> u64 {
            let mut lock = self.inner.lock().unwrap();
            let prev = *lock;

            if prev != old {
                return prev;
            }

            *lock = new;
            prev
        }
    }
}