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Initial C-api implementation #5604

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0bb4331
initial capi
arihant2math Mar 12, 2025
46a35cc
add cdylib output to c-api
arihant2math Mar 24, 2025
6913dc0
add interpreter embedding commands
arihant2math Mar 25, 2025
94ba894
clippy fixes
arihant2math Mar 30, 2025
d520d5f
implement more of the concrete object layer
arihant2math Apr 8, 2025
a2779d4
fix cspell
arihant2math Apr 14, 2025
b6a07c3
add C import base (not fledged out yet)
arihant2math Apr 17, 2025
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add interpreter embedding commands
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@arihant2math
arihant2math committed Apr 17, 2025
commit 6913dc06b0c222ca9e203dd55a456868729b2f42
37 changes: 37 additions & 0 deletions capi/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -50,3 +50,40 @@ pub struct PyInterpreterConfig {
check_multi_interp_extensions: i32,
gil: i32,
}

thread_local! {
pub static INTERP: RefCell<Option<vm::Interpreter>> = const { RefCell::new(None) };
}

#[unsafe(export_name = "Py_Initialize")]
pub unsafe extern "C" fn initialize() {
// TODO: This sort of reimplemented what has already been done in the bin/lib crate, try reusing that.
let settings = vm::Settings::default();
let init_hooks: Vec<Box<dyn FnOnce(&mut vm::VirtualMachine)>> = vec![];
let interp = vm::Interpreter::with_init(settings, |vm| {
for hook in init_hooks {
hook(vm);
}
});
VM.with(|vm_ref| {
*vm_ref.borrow_mut() = Some(interp.vm.clone());
});
INTERP.with(|interp_ref| {
*interp_ref.borrow_mut() = Some(interp);
});
}

#[unsafe(export_name = "Py_IsInitialized")]
pub unsafe extern "C" fn is_initialized() -> i32 {
VM.with(|vm_ref| vm_ref.borrow().is_some() as i32)
}

#[unsafe(export_name = "Py_Finalize")]
pub unsafe extern "C" fn finalize() {
VM.with(|vm_ref| {
*vm_ref.borrow_mut() = None;
});
INTERP.with(|interp_ref| {
*interp_ref.borrow_mut() = None;
});
}