Files
ab_glyph_rasterizer
addr2line
adler
andrew
approx
arrayvec
ash
atom
backtrace
bitflags
byteorder
calloop
cfg_if
colorful
conrod_core
conrod_derive
conrod_example_shared
conrod_gfx
conrod_glium
conrod_piston
conrod_rendy
conrod_vulkano
conrod_wgpu
conrod_winit
copyless
copypasta
crossbeam
crossbeam_channel
crossbeam_deque
crossbeam_epoch
crossbeam_queue
crossbeam_utils
daggy
dlib
downcast_rs
draw_state
either
fixedbitset
float
fnv
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
fxhash
getrandom
gfx
gfx_backend_empty
gfx_backend_vulkan
gfx_core
gfx_descriptor
gfx_hal
gfx_memory
gimli
glium
glutin
glutin_egl_sys
glutin_glx_sys
graphics
half
hibitset
inplace_it
input
instant
interpolation
iovec
itoa
lazy_static
lazycell
libc
libloading
line_drawing
linked_hash_map
lock_api
log
maybe_uninit
memchr
memmap
memoffset
miniz_oxide
mio
mio_extras
naga
net2
nix
nom
num
num_bigint
num_complex
num_cpus
num_integer
num_iter
num_rational
num_traits
object
once_cell
ordered_float
ordermap
osmesa_sys
owned_ttf_parser
parking_lot
parking_lot_core
percent_encoding
petgraph
pin_project
pin_project_internal
pin_project_lite
pin_utils
ppv_lite86
proc_macro2
proc_macro_hack
proc_macro_nested
quote
rand
rand_chacha
rand_core
raw_window_handle
read_color
relevant
rendy
rendy_chain
rendy_command
rendy_core
rendy_descriptor
rendy_factory
rendy_frame
rendy_graph
rendy_init
rendy_memory
rendy_mesh
rendy_resource
rendy_shader
rendy_texture
rendy_wsi
rustc_demangle
rustc_hash
rusttype
ryu
same_file
scoped_tls
scopeguard
serde
serde_derive
serde_json
shaderc
shaderc_sys
shared_library
slab
smallvec
smithay_client_toolkit
smithay_clipboard
spirv_headers
stb_truetype
syn
takeable_option
texture
thiserror
thiserror_impl
thread_profiler
time
tracing
tracing_core
ttf_parser
typed_arena
unicode_xid
vecmath
viewport
vk_sys
void
vulkano
buffer
command_buffer
descriptor
device
framebuffer
image
instance
memory
pipeline
query
swapchain
sync
vulkano_shaders
walkdir
wayland_client
wayland_commons
wayland_cursor
wayland_egl
wayland_protocols
wayland_sys
wgpu
wgpu_core
wgpu_types
winit
x11
x11_clipboard
x11_dl
xcb
xcursor
xdg
xml
 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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
#[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
use core::sync::atomic::compiler_fence;
use core::sync::atomic::Ordering;

/// Trait which allows reading from primitive atomic types with "consume" ordering.
pub trait AtomicConsume {
    /// Type returned by `load_consume`.
    type Val;

    /// Loads a value from the atomic using a "consume" memory ordering.
    ///
    /// This is similar to the "acquire" ordering, except that an ordering is
    /// only guaranteed with operations that "depend on" the result of the load.
    /// However consume loads are usually much faster than acquire loads on
    /// architectures with a weak memory model since they don't require memory
    /// fence instructions.
    ///
    /// The exact definition of "depend on" is a bit vague, but it works as you
    /// would expect in practice since a lot of software, especially the Linux
    /// kernel, rely on this behavior.
    ///
    /// This is currently only implemented on ARM and AArch64, where a fence
    /// can be avoided. On other architectures this will fall back to a simple
    /// `load(Ordering::Acquire)`.
    fn load_consume(&self) -> Self::Val;
}

#[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
macro_rules! impl_consume {
    () => {
        #[inline]
        fn load_consume(&self) -> Self::Val {
            let result = self.load(Ordering::Relaxed);
            compiler_fence(Ordering::Acquire);
            result
        }
    };
}

#[cfg(not(any(target_arch = "arm", target_arch = "aarch64")))]
macro_rules! impl_consume {
    () => {
        #[inline]
        fn load_consume(&self) -> Self::Val {
            self.load(Ordering::Acquire)
        }
    };
}

macro_rules! impl_atomic {
    ($atomic:ident, $val:ty) => {
        impl AtomicConsume for ::core::sync::atomic::$atomic {
            type Val = $val;
            impl_consume!();
        }
    };
}

impl_atomic!(AtomicBool, bool);
impl_atomic!(AtomicUsize, usize);
impl_atomic!(AtomicIsize, isize);
#[cfg(all(feature = "nightly", target_has_atomic = "8"))]
impl_atomic!(AtomicU8, u8);
#[cfg(all(feature = "nightly", target_has_atomic = "8"))]
impl_atomic!(AtomicI8, i8);
#[cfg(all(feature = "nightly", target_has_atomic = "16"))]
impl_atomic!(AtomicU16, u16);
#[cfg(all(feature = "nightly", target_has_atomic = "16"))]
impl_atomic!(AtomicI16, i16);
#[cfg(all(feature = "nightly", target_has_atomic = "32"))]
impl_atomic!(AtomicU32, u32);
#[cfg(all(feature = "nightly", target_has_atomic = "32"))]
impl_atomic!(AtomicI32, i32);
#[cfg(all(feature = "nightly", target_has_atomic = "64"))]
impl_atomic!(AtomicU64, u64);
#[cfg(all(feature = "nightly", target_has_atomic = "64"))]
impl_atomic!(AtomicI64, i64);

impl<T> AtomicConsume for ::core::sync::atomic::AtomicPtr<T> {
    type Val = *mut T;
    impl_consume!();
}