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wip (problem with Pin)

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This commit is contained in:
Per Lindgren 2019-09-24 02:01:25 +02:00
parent 38306389ea
commit 99a45ff28e
8 changed files with 373 additions and 28 deletions
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111
macros/src/codegen/hardware_tasks.rs
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@ -29,6 +29,9 @@ pub fn codegen(
let mut user_tasks = vec![];
for (name, task) in &app.hardware_tasks {
// per: debug
// println!("// -- name -- {:?}", name);
// println!("// -- task -- {:?}", task);
let core = task.args.core;
let cfg_core = util::cfg_core(core, app.args.cores);
@ -57,24 +60,47 @@ pub fn codegen(
let priority = task.args.priority;
let section = util::link_section("text", core);
const_app.push(quote!(
#[allow(non_snake_case)]
#[no_mangle]
#section
#cfg_core
unsafe fn #symbol() {
const PRIORITY: u8 = #priority;
if task.is_generator {
let gen_static = util::gen_static_ident(&name);
let gen_type = util::gen_type_ident(&name);
const_app.push(quote!(
#[allow(non_snake_case)]
#[no_mangle]
#section
#cfg_core
unsafe fn #symbol() {
const PRIORITY: u8 = #priority;
#let_instant
#let_instant
rtfm::export::run(PRIORITY, || {
crate::#name(
#locals_new
#name::Context::new(&rtfm::export::Priority::new(PRIORITY) #instant)
)
});
}
));
rtfm::export::run(PRIORITY, || {
hprintln!("here").unwrap();
// core::pin::Pin::new(crate::#gen_static.assume_init()).resume();
// let stat = &mut core::mem::transmute::<_,#gen_type>(crate::#gen_static);
core::pin::Pin::new(#gen_static.as_mut_ptr()).resume();
});
}
));
} else {
const_app.push(quote!(
#[allow(non_snake_case)]
#[no_mangle]
#section
#cfg_core
unsafe fn #symbol() {
const PRIORITY: u8 = #priority;
#let_instant
rtfm::export::run(PRIORITY, || {
crate::#name(
#locals_new
#name::Context::new(&rtfm::export::Priority::new(PRIORITY) #instant)
)
});
}
));
}
let mut needs_lt = false;
@ -116,16 +142,51 @@ pub fn codegen(
let section = util::link_section("text", core);
// XXX shouldn't this have a cfg_core?
let locals_pat = locals_pat.iter();
user_tasks.push(quote!(
#(#attrs)*
#[allow(non_snake_case)]
#section
fn #name(#(#locals_pat,)* #context: #name::Context) {
use rtfm::Mutex as _;
#(#stmts)*
}
));
if task.is_generator {
// exapmle expansion
// type GeneratorFoo = impl Generator<Yield = (), Return = !>;
// static mut GENERATOR_FOO: MaybeUninit<GeneratorFoo> = MaybeUninit::uninit();
// #[allow(non_snake_case)]
// fn foo(ctx: foo::Context) -> GeneratorFoo {
// use rtfm::Mutex as _;
// move || loop { yield }
// }
let gen_type = util::gen_type_ident(&name);
let gen_static = util::gen_static_ident(&name);
user_tasks.push(quote!(
type #gen_type = impl Generator<Yield = (), Return = !>;
));
user_tasks.push(quote!(
static mut #gen_static : core::mem::MaybeUninit<#gen_type> = core::mem::MaybeUninit::uninit();
));
user_tasks.push(quote!(
#(#attrs)*
#[allow(non_snake_case)]
#section
fn #name(#(#locals_pat,)* #context: #name::Context) -> #gen_type {
use rtfm::Mutex as _;
#(#stmts)*
}
));
} else {
// generate ordinary task
user_tasks.push(quote!(
#(#attrs)*
#[allow(non_snake_case)]
#section
fn #name(#(#locals_pat,)* #context: #name::Context) {
use rtfm::Mutex as _;
#(#stmts)*
}
));
}
}
(const_app, root, user_tasks)