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Add async host functions

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This commit is contained in:
Isaac Clayton 2022-06-13 16:06:39 +02:00
parent a5a0abb895
commit 4565f1a976
6 changed files with 96 additions and 91 deletions
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44
plugins/json_language/src/lib.rs
View file

@ -4,8 +4,8 @@ use serde_json::json;
use std::fs;
use std::path::PathBuf;
// #[import]
// fn command(string: &str) -> Option<String>;
#[import]
fn command(string: &str) -> Option<String>;
// #[no_mangle]
// // TODO: switch len from usize to u32?
@ -28,29 +28,29 @@ use std::path::PathBuf;
// return new_buffer.leak_to_heap();
// }
extern "C" {
fn __command(buffer: u64) -> u64;
}
// extern "C" {
// fn __command(buffer: u64) -> u64;
// }
#[no_mangle]
fn command(string: &str) -> Option<Vec<u8>> {
dbg!("executing command: {}", string);
// setup
let data = string;
let data = ::plugin::bincode::serialize(&data).unwrap();
let buffer = unsafe { ::plugin::__Buffer::from_vec(data) };
// #[no_mangle]
// fn command(string: &str) -> Option<Vec<u8>> {
// dbg!("executing command: {}", string);
// // setup
// let data = string;
// let data = ::plugin::bincode::serialize(&data).unwrap();
// let buffer = unsafe { ::plugin::__Buffer::from_vec(data) };
// operation
let new_buffer = unsafe { __command(buffer.into_u64()) };
let new_data = unsafe { ::plugin::__Buffer::from_u64(new_buffer).to_vec() };
let new_data: Option<Vec<u8>> = match ::plugin::bincode::deserialize(&new_data) {
Ok(d) => d,
Err(e) => panic!("Data returned from function not deserializable."),
};
// // operation
// let new_buffer = unsafe { __command(buffer.into_u64()) };
// let new_data = unsafe { ::plugin::__Buffer::from_u64(new_buffer).to_vec() };
// let new_data: Option<Vec<u8>> = match ::plugin::bincode::deserialize(&new_data) {
// Ok(d) => d,
// Err(e) => panic!("Data returned from function not deserializable."),
// };
// teardown
return new_data;
}
// // teardown
// return new_data;
// }
// TODO: some sort of macro to generate ABI bindings
// extern "C" {

8
plugins/test_plugin/src/lib.rs
View file

@ -61,3 +61,11 @@ pub fn imports(x: u32) -> u32 {
assert_eq!(x, b);
a + b // should be 7 + x
}
#[import]
fn import_half(a: u32) -> u32;
#[export]
pub fn half_async(a: u32) -> u32 {
import_half(a)
}