copy.rs.html -- source

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arrayvec

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ash

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symbolize

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conrod_core

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copyless

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crossbeam_utils

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sync

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dlib

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either

fixedbitset

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float

fnv

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stream

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fxhash

getrandom

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pso

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encoder.rs factory.rs lib.rs shade.rs slice.rs

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command.rs conv.rs device.rs info.rs lib.rs native.rs pool.rs window.rs

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gfx_descriptor

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heaps

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block.rs lib.rs mapping.rs memory.rs stats.rs usage.rs

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buffer

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context

capabilities.rs extensions.rs mod.rs state.rs

draw_parameters

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framebuffer

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index

buffer.rs mod.rs multidraw.rs

ops

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program

binary_header.rs compute.rs mod.rs program.rs raw.rs reflection.rs shader.rs uniforms_storage.rs

texture

any.rs bindless.rs buffer_texture.rs get_format.rs mod.rs pixel.rs pixel_buffer.rs ty_support.rs

uniforms

bind.rs buffer.rs mod.rs sampler.rs uniforms.rs value.rs

utils

bitsfield.rs mod.rs range.rs

vertex

buffer.rs format.rs mod.rs transform_feedback.rs

debug.rs fbo.rs field.rs image_format.rs lib.rs macros.rs pixel_buffer.rs sampler_object.rs sync.rs version.rs vertex_array_object.rs

glutin

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glx

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osmesa

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platform

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context.rs lib.rs windowed.rs

glutin_egl_sys

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bfloat

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hibitset

iter

drain.rs mod.rs

atomic.rs lib.rs ops.rs util.rs

inplace_it

guards

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alloc_array.rs fixed_array.rs lib.rs

input

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linked_hash_map

lock_api

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log

lib.rs macros.rs

maybe_uninit

memchr

x86

avx.rs mod.rs sse2.rs

fallback.rs iter.rs lib.rs naive.rs

memmap

memoffset

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miniz_oxide

deflate

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inflate

core.rs mod.rs output_buffer.rs stream.rs

lib.rs shared.rs

mio

mio_extras

channel.rs lib.rs timer.rs

naga

back

spv

helpers.rs layout.rs mod.rs writer.rs

front

mod.rs spv.rs wgsl.rs

proc

interface.rs mod.rs typifier.rs validator.rs

arena.rs lib.rs

net2

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unix

impls.rs mod.rs

ext.rs lib.rs socket.rs tcp.rs udp.rs unix.rs utils.rs

nix

nom

bits

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branch

macros.rs mod.rs

bytes

complete.rs macros.rs mod.rs streaming.rs

character

complete.rs macros.rs mod.rs streaming.rs

combinator

macros.rs mod.rs

multi

macros.rs mod.rs

number

complete.rs macros.rs mod.rs streaming.rs

sequence

macros.rs mod.rs

error.rs internal.rs lib.rs methods.rs str.rs traits.rs util.rs whitespace.rs

num

num_bigint

algorithms.rs bigint.rs biguint.rs lib.rs macros.rs monty.rs

num_complex

cast.rs lib.rs pow.rs

num_cpus

lib.rs linux.rs

num_integer

average.rs lib.rs roots.rs

num_iter

num_rational

num_traits

object

once_cell

imp_std.rs lib.rs

ordered_float

ordermap

equivalent.rs lib.rs macros.rs mutable_keys.rs set.rs util.rs

osmesa_sys

owned_ttf_parser

convert.rs lib.rs owned.rs

parking_lot

condvar.rs deadlock.rs elision.rs lib.rs mutex.rs once.rs raw_mutex.rs raw_rwlock.rs remutex.rs rwlock.rs util.rs

parking_lot_core

thread_parker

linux.rs mod.rs

lib.rs parking_lot.rs spinwait.rs util.rs word_lock.rs

percent_encoding

petgraph

pin_project

pin_project_internal

pin_project

attribute.rs derive.rs mod.rs

lib.rs pinned_drop.rs project.rs utils.rs

pin_project_lite

pin_utils

lib.rs projection.rs stack_pin.rs

ppv_lite86

x86_64

lib.rs soft.rs types.rs

proc_macro2

detection.rs fallback.rs lib.rs marker.rs parse.rs wrapper.rs

proc_macro_hack

error.rs iter.rs lib.rs parse.rs quote.rs

proc_macro_nested

quote

ext.rs format.rs ident_fragment.rs lib.rs runtime.rs spanned.rs to_tokens.rs

rand

rand_chacha

chacha.rs guts.rs lib.rs

rand_core

block.rs error.rs impls.rs le.rs lib.rs os.rs

raw_window_handle

read_color

relevant

rendy

rendy_chain

chain

schedule

family.rs mod.rs queue.rs submission.rs

collect.rs lib.rs node.rs resource.rs sync.rs

rendy_command

buffer

encoder.rs level.rs mod.rs reset.rs state.rs submit.rs usage.rs

family

mod.rs queue.rs submission.rs

capability.rs fence.rs lib.rs pool.rs

rendy_core

types

mod.rs vertex.rs

backend.rs casts.rs features.rs lib.rs slow.rs wrap.rs

rendy_descriptor

allocator.rs lib.rs ranges.rs

rendy_factory

barriers.rs blitter.rs config.rs factory.rs lib.rs upload.rs

rendy_frame

cirque

command.rs mod.rs

frame.rs lib.rs

rendy_graph

graph

node

render

group

mod.rs simple.rs

mod.rs present.rs

rendy_init

rendy_memory

allocator

dedicated.rs dynamic.rs linear.rs mod.rs

heaps

heap.rs memory_type.rs mod.rs

mapping

mod.rs range.rs write.rs

block.rs lib.rs memory.rs usage.rs util.rs utilization.rs

rendy_mesh

format.rs lib.rs mesh.rs

rendy_resource

sampler

cache.rs mod.rs

buffer.rs escape.rs image.rs lib.rs resources.rs set.rs

rendy_shader

rendy_texture

format.rs lib.rs pixel.rs texture.rs

rendy_wsi

rustc_demangle

legacy.rs lib.rs v0.rs

rustc_hash

rusttype

ryu

buffer

pretty

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common.rs d2s.rs d2s_full_table.rs d2s_intrinsics.rs digit_table.rs f2s.rs f2s_intrinsics.rs lib.rs

same_file

scoped_tls

scopeguard

serde

de

from_primitive.rs ignored_any.rs impls.rs mod.rs utf8.rs value.rs

private

de.rs macros.rs mod.rs ser.rs

ser

fmt.rs impls.rs impossible.rs mod.rs

export.rs integer128.rs lib.rs macros.rs

serde_derive

internals

ast.rs attr.rs case.rs check.rs ctxt.rs mod.rs symbol.rs

bound.rs de.rs dummy.rs fragment.rs lib.rs pretend.rs ser.rs try.rs

serde_json

features_check

io

value

de.rs from.rs index.rs mod.rs partial_eq.rs ser.rs

de.rs error.rs iter.rs lib.rs macros.rs map.rs number.rs read.rs ser.rs

shaderc

shaderc_sys

shared_library

dynamic_library.rs lib.rs

slab

smallvec

smithay_client_toolkit

data_device

data_device.rs data_offer.rs data_source.rs mod.rs

keyboard

ffi.rs keysyms.rs mod.rs

pointer

mod.rs theme.rs

shell

mod.rs wl.rs xdg.rs zxdg.rs

utils

mempool.rs mod.rs

window

basic_frame.rs concept_frame.rs mod.rs

env.rs lib.rs output.rs surface.rs

smithay_clipboard

lib.rs threaded.rs

spirv_headers

autogen_spirv.rs lib.rs

stb_truetype

syn

takeable_option

texture

thiserror

aserror.rs display.rs lib.rs

thiserror_impl

ast.rs attr.rs expand.rs fmt.rs lib.rs prop.rs valid.rs

thread_profiler

time

display.rs duration.rs lib.rs parse.rs sys.rs

tracing

dispatcher.rs field.rs instrument.rs level_filters.rs lib.rs macros.rs span.rs stdlib.rs subscriber.rs

tracing_core

callsite.rs dispatcher.rs event.rs field.rs lib.rs metadata.rs parent.rs span.rs stdlib.rs subscriber.rs

ttf_parser

typed_arena

unicode_xid

lib.rs tables.rs

vecmath

lib.rs traits.rs

viewport

vk_sys

void

vulkano

buffer

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command_buffer

descriptor

descriptor_set

collection.rs fixed_size_pool.rs mod.rs persistent.rs std_pool.rs sys.rs unsafe_layout.rs

pipeline_layout

empty.rs limits_check.rs mod.rs runtime_desc.rs sys.rs traits.rs tweaks.rs union.rs

descriptor.rs mod.rs

device

extensions.rs mod.rs

framebuffer

attachments_list.rs compat_atch.rs desc.rs empty.rs framebuffer.rs macros.rs mod.rs sys.rs traits.rs

image

attachment.rs immutable.rs layout.rs mod.rs storage.rs swapchain.rs sys.rs traits.rs usage.rs

instance

debug.rs extensions.rs instance.rs layers.rs limits.rs loader.rs mod.rs

memory

pool

host_visible.rs mod.rs non_host_visible.rs pool.rs

device_memory.rs mod.rs

pipeline

query

swapchain

capabilities.rs display.rs mod.rs present_region.rs surface.rs swapchain.rs

sync

future

fence_signal.rs join.rs mod.rs now.rs semaphore_signal.rs

event.rs fence.rs mod.rs pipeline.rs semaphore.rs

extensions.rs features.rs format.rs lib.rs sampler.rs version.rs

vulkano_shaders

codegen.rs descriptor_sets.rs entry_point.rs enums.rs lib.rs parse.rs spec_consts.rs spirv_search.rs structs.rs

walkdir

dent.rs error.rs lib.rs util.rs

wayland_client

native_lib

display.rs event_queue.rs mod.rs proxy.rs

cursor.rs display.rs event_queue.rs globals.rs lib.rs proxy.rs sinks.rs

wayland_commons

debug.rs filter.rs lib.rs map.rs socket.rs user_data.rs wire.rs

wayland_cursor

wayland_egl

wayland_protocols

lib.rs misc.rs protocol_macro.rs stable.rs unstable.rs wlr.rs

wayland_sys

client.rs common.rs egl.rs lib.rs server.rs

wgpu

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direct.rs mod.rs native_gpu_future.rs

util

lib.rs macros.rs

wgpu_core

wgpu_types

winit

platform

desktop.rs mod.rs unix.rs

platform_impl

linux

wayland

event_loop

mod.rs proxy.rs sink.rs state.rs

seat

keyboard

handlers.rs keymap.rs mod.rs

pointer

data.rs handlers.rs mod.rs

text_input

handlers.rs mod.rs

touch

handlers.rs mod.rs

window

env.rs mod.rs output.rs

x11

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x11

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x11_clipboard

error.rs lib.rs run.rs

x11_dl

dpms.rs error.rs glx.rs internal.rs keysym.rs lib.rs link.rs xcursor.rs xf86vmode.rs xfixes.rs xft.rs xinerama.rs xinput.rs xinput2.rs xlib.rs xlib_xcb.rs xmd.rs xmu.rs xrandr.rs xrecord.rs xrender.rs xss.rs xt.rs xtest.rs

xcb

ffi

xcursor

lib.rs parser.rs

xdg

xml

use futures_core::future::Future;
use futures_core::task::{Context, Poll};
use futures_io::{AsyncRead, AsyncWrite};
use std::io;
use std::pin::Pin;
use super::{BufReader, copy_buf, CopyBuf};
use pin_project::pin_project;

/// Creates a future which copies all the bytes from one object to another.
///
/// The returned future will copy all the bytes read from this `AsyncRead` into the
/// `writer` specified. This future will only complete once the `reader` has hit
/// EOF and all bytes have been written to and flushed from the `writer`
/// provided.
///
/// On success the number of bytes is returned.
///
/// # Examples
///
/// ```
/// # futures::executor::block_on(async {
/// use futures::io::{self, AsyncWriteExt, Cursor};
///
/// let reader = Cursor::new([1, 2, 3, 4]);
/// let mut writer = Cursor::new(vec![0u8; 5]);
///
/// let bytes = io::copy(reader, &mut writer).await?;
/// writer.close().await?;
///
/// assert_eq!(bytes, 4);
/// assert_eq!(writer.into_inner(), [1, 2, 3, 4, 0]);
/// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap();
/// ```
pub fn copy<R, W>(reader: R, writer: &mut W) -> Copy<'_, R, W>
where
    R: AsyncRead,
    W: AsyncWrite + Unpin + ?Sized,
{
    Copy {
        inner: copy_buf(BufReader::new(reader), writer),
    }
}

/// Future for the [`copy()`] function.
#[pin_project]
#[derive(Debug)]
#[must_use = "futures do nothing unless you `.await` or poll them"]
pub struct Copy<'a, R, W: ?Sized> {
    #[pin]
    inner: CopyBuf<'a, BufReader<R>, W>,
}

impl<R: AsyncRead, W: AsyncWrite + Unpin + ?Sized> Future for Copy<'_, R, W> {
    type Output = io::Result<u64>;

    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
        self.project().inner.poll(cx)
    }
}