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This commit is contained in:
Maurice
commit
828e08c6ce
3
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bin/
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# This file is automatically @generated by Cargo.
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||||||
|
name = "windows_x86_64_gnullvm"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_msvc"
|
||||||
|
version = "0.48.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
||||||
15
Cargo.toml
Normal file
15
Cargo.toml
Normal file
@ -0,0 +1,15 @@
|
|||||||
|
[package]
|
||||||
|
name = "ffichannels"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[lib]
|
||||||
|
name = "ffi_channels"
|
||||||
|
crate-type = ["cdylib"]
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
async-channel = "1.9.0"
|
||||||
|
async-io = "1.13.0"
|
||||||
|
async-lock = "2.8.0"
|
||||||
43
FfiChannels/Ffi.cs
Normal file
43
FfiChannels/Ffi.cs
Normal file
@ -0,0 +1,43 @@
|
|||||||
|
using System.Runtime.InteropServices;
|
||||||
|
|
||||||
|
namespace FfiChannels
|
||||||
|
{
|
||||||
|
[StructLayout(LayoutKind.Sequential)]
|
||||||
|
public struct ByteArray
|
||||||
|
{
|
||||||
|
public IntPtr data;
|
||||||
|
public int length;
|
||||||
|
|
||||||
|
public byte[] ToByteArray() {
|
||||||
|
var array = new byte[length];
|
||||||
|
Marshal.Copy(data, array, 0, length);
|
||||||
|
return array;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public delegate void Callback(ByteArray byteArray);
|
||||||
|
|
||||||
|
public static class Bindings {
|
||||||
|
|
||||||
|
[DllImport("ffi_channels")]
|
||||||
|
public static extern void send(byte[] data, int length);
|
||||||
|
|
||||||
|
[DllImport("ffi_channels")]
|
||||||
|
public static extern ByteArray receive();
|
||||||
|
|
||||||
|
[DllImport("ffi_channels")]
|
||||||
|
public static extern void register_callback(Callback cb);
|
||||||
|
|
||||||
|
[DllImport("ffi_channels")]
|
||||||
|
public static extern void start_listening();
|
||||||
|
|
||||||
|
public static Task<byte[]> ReceiveAsync() {
|
||||||
|
return Task.Run(() => {
|
||||||
|
Console.WriteLine("Receiving..");
|
||||||
|
var ptr = receive(); //blocking call
|
||||||
|
Console.WriteLine("Received!");
|
||||||
|
return ptr.ToByteArray();
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
21
FfiChannels/FfiChannels.csproj
Normal file
21
FfiChannels/FfiChannels.csproj
Normal file
@ -0,0 +1,21 @@
|
|||||||
|
<Project Sdk="Microsoft.NET.Sdk">
|
||||||
|
|
||||||
|
<PropertyGroup>
|
||||||
|
<OutputType>Exe</OutputType>
|
||||||
|
<TargetFramework>net7.0</TargetFramework>
|
||||||
|
<ImplicitUsings>enable</ImplicitUsings>
|
||||||
|
<Nullable>enable</Nullable>
|
||||||
|
</PropertyGroup>
|
||||||
|
|
||||||
|
<PropertyGroup>
|
||||||
|
<NativeOutputPath>../target/debug</NativeOutputPath>
|
||||||
|
<LibraryName>ffi_channels</LibraryName>
|
||||||
|
</PropertyGroup>
|
||||||
|
|
||||||
|
<ItemGroup>
|
||||||
|
<None Condition="$([MSBuild]::IsOsPlatform('MacOS'))" Include="$(NativeOutputPath)/lib$(LibraryName).dylib" CopyToOutputDirectory="PreserveNewest" />
|
||||||
|
<None Condition="$([MSBuild]::IsOsPlatform('Linux'))" Include="$(NativeOutputPath)/lib$(LibraryName).so" CopyToOutputDirectory="PreserveNewest" />
|
||||||
|
<None Condition="$([MSBuild]::IsOsPlatform('Windows'))" Include="$(NativeOutputPath)/$(LibraryName).dll" CopyToOutputDirectory="PreserveNewest" />
|
||||||
|
</ItemGroup>
|
||||||
|
|
||||||
|
</Project>
|
||||||
25
FfiChannels/Program.cs
Normal file
25
FfiChannels/Program.cs
Normal file
@ -0,0 +1,25 @@
|
|||||||
|
using FfiChannels;
|
||||||
|
|
||||||
|
Bindings.register_callback((bytes) => {
|
||||||
|
var data = bytes.ToByteArray();
|
||||||
|
Console.WriteLine($"Callback called, bytes: {string.Join(',',data)}");
|
||||||
|
});
|
||||||
|
Bindings.start_listening();
|
||||||
|
|
||||||
|
Console.WriteLine("Press key to send");
|
||||||
|
Console.ReadKey(true);
|
||||||
|
|
||||||
|
Bindings.send(new byte[]{ 1,2,3,4,5,6,7,8,9,10 }, 10);
|
||||||
|
|
||||||
|
Console.WriteLine("Press key to exit");
|
||||||
|
Console.ReadKey(true);
|
||||||
|
|
||||||
|
// var receiving = Bindings.ReceiveAsync();
|
||||||
|
// Console.WriteLine("Press key to send");
|
||||||
|
// Console.ReadKey(true);
|
||||||
|
// Console.WriteLine("Hello world, sending data to Rust:");
|
||||||
|
// Bindings.send(new byte[]{ 1,2,3,4,5,6,7,8,9,10 }, 10);
|
||||||
|
// Console.WriteLine("Press a key to receive");
|
||||||
|
// Console.ReadKey(true);
|
||||||
|
// var data = await receiving;
|
||||||
|
// Console.WriteLine($"Received: {string.Join(',',data)}");
|
||||||
25
ffichannels.sln
Normal file
25
ffichannels.sln
Normal file
@ -0,0 +1,25 @@
|
|||||||
|
|
||||||
|
Microsoft Visual Studio Solution File, Format Version 12.00
|
||||||
|
# Visual Studio Version 17
|
||||||
|
VisualStudioVersion = 17.5.002.0
|
||||||
|
MinimumVisualStudioVersion = 10.0.40219.1
|
||||||
|
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FfiChannels", "FfiChannels\FfiChannels.csproj", "{BD86F9D2-3857-47AA-B9E8-842FB91131CB}"
|
||||||
|
EndProject
|
||||||
|
Global
|
||||||
|
GlobalSection(SolutionConfigurationPlatforms) = preSolution
|
||||||
|
Debug|Any CPU = Debug|Any CPU
|
||||||
|
Release|Any CPU = Release|Any CPU
|
||||||
|
EndGlobalSection
|
||||||
|
GlobalSection(ProjectConfigurationPlatforms) = postSolution
|
||||||
|
{BD86F9D2-3857-47AA-B9E8-842FB91131CB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||||
|
{BD86F9D2-3857-47AA-B9E8-842FB91131CB}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||||
|
{BD86F9D2-3857-47AA-B9E8-842FB91131CB}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||||
|
{BD86F9D2-3857-47AA-B9E8-842FB91131CB}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||||
|
EndGlobalSection
|
||||||
|
GlobalSection(SolutionProperties) = preSolution
|
||||||
|
HideSolutionNode = FALSE
|
||||||
|
EndGlobalSection
|
||||||
|
GlobalSection(ExtensibilityGlobals) = postSolution
|
||||||
|
SolutionGuid = {AFBE47FA-0D1A-4EBF-B552-B050F83A917C}
|
||||||
|
EndGlobalSection
|
||||||
|
EndGlobal
|
||||||
87
src/lib.rs
Normal file
87
src/lib.rs
Normal file
@ -0,0 +1,87 @@
|
|||||||
|
use std::{slice, thread};
|
||||||
|
|
||||||
|
use async_channel::{Sender, Receiver, unbounded};
|
||||||
|
use async_io::block_on;
|
||||||
|
use async_lock::{OnceCell, RwLock};
|
||||||
|
|
||||||
|
type Callback = extern "C" fn (ByteArray);
|
||||||
|
|
||||||
|
static CHANNEL: OnceCell<(Sender<Vec<u8>>, Receiver<Vec<u8>>)> = OnceCell::new();
|
||||||
|
static CALLBACK: RwLock<Option<Callback>> = RwLock::new(None);
|
||||||
|
|
||||||
|
fn get_channel() -> &'static (Sender<Vec<u8>>, Receiver<Vec<u8>>) {
|
||||||
|
CHANNEL.get_or_init_blocking(|| {
|
||||||
|
println!("Initialized channel");
|
||||||
|
unbounded()
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn get_sender() -> &'static Sender<Vec<u8>> {
|
||||||
|
&get_channel().0
|
||||||
|
}
|
||||||
|
|
||||||
|
fn get_receiver() -> &'static Receiver<Vec<u8>> {
|
||||||
|
&get_channel().1
|
||||||
|
}
|
||||||
|
|
||||||
|
#[repr(C)]
|
||||||
|
pub struct ByteArray {
|
||||||
|
data: *const u8,
|
||||||
|
length: usize
|
||||||
|
}
|
||||||
|
|
||||||
|
impl From<Vec<u8>> for ByteArray {
|
||||||
|
fn from(value: Vec<u8>) -> Self {
|
||||||
|
ByteArray { data: value.as_ptr(), length: value.len() }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[no_mangle]
|
||||||
|
pub extern "C" fn register_callback(cb: Callback) {
|
||||||
|
block_on(async {
|
||||||
|
let mut writer = CALLBACK.write().await;
|
||||||
|
*writer = Some(cb);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
#[no_mangle]
|
||||||
|
pub extern "C" fn start_listening() {
|
||||||
|
let receiver = get_receiver().clone();
|
||||||
|
thread::spawn(move|| {
|
||||||
|
block_on(async {
|
||||||
|
println!("Start listening for received events");
|
||||||
|
loop {
|
||||||
|
let next = receiver.recv().await;
|
||||||
|
if let Ok(data) = next {
|
||||||
|
println!("Received data: {:?}", data);
|
||||||
|
let reader = CALLBACK.read().await;
|
||||||
|
if reader.is_some() {
|
||||||
|
println!("Calling callback");
|
||||||
|
let cb = reader.unwrap();
|
||||||
|
let bytes = ByteArray::from(data);
|
||||||
|
cb(bytes);
|
||||||
|
} else {
|
||||||
|
println!("No callback");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
})
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
#[no_mangle]
|
||||||
|
pub extern "C" fn send(data: *const u8, length: usize) {
|
||||||
|
let byte_slice = unsafe {
|
||||||
|
assert!(!data.is_null());
|
||||||
|
slice::from_raw_parts(data, length)
|
||||||
|
};
|
||||||
|
|
||||||
|
get_sender().send_blocking(byte_slice.to_vec()).unwrap();
|
||||||
|
println!("Received {} bytes, array: {:?}", length, byte_slice);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[no_mangle]
|
||||||
|
pub extern "C" fn receive() -> ByteArray {
|
||||||
|
let data = get_receiver().recv_blocking().unwrap();
|
||||||
|
ByteArray::from(data)
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user