forked from ROMEO/obsw
this time, we won't reinvent the wheel
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3155243ae9
commit
4460e470b2
@ -1,52 +1,39 @@
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use core::any::Any;
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use crate::check_global_threading_available;
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use super::objectmanager::SystemObjectIF;
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use super::{mutex, objectmanager};
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#[derive(Copy, Clone, PartialEq)]
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pub struct TypeId {
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id: usize,
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}
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// inspired by Jack Wrenn at https://github.com/jswrenn/deflect/
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pub trait HasTypeId {
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#[inline(never)]
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fn get_type_id(&self) -> TypeId {
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TypeId {
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id: Self::get_type_id as usize,
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}
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}
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}
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pub trait DatapoolOwnerIF {
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fn get_set(&self, _type_id: TypeId) -> Option<&dyn DataSetIF> {
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fn get_set(&self, _type_id: core::any::TypeId) -> Option<&dyn DataSetIF> {
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None
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}
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}
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pub trait DataSetIF {
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fn get_type_id(&self) -> TypeId;
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fn get_actual_data(&self) -> &dyn HasTypeId;
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fn get_type_id(&self) -> core::any::TypeId; // TODO can we get rid of this? Currently, it helps implementing DatapoolOwnerIF::get_set() but if we can optimize/generate that, this might be not needed any more
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fn get_actual_data(&self) -> &dyn core::any::Any;
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fn get_mutex(&self) -> mutex::RawMutex;
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}
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pub struct OwnedDataset<T: HasTypeId + Clone> {
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pub struct OwnedDataset<T: Clone> {
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actual_data: T,
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mutex: mutex::RawMutex,
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}
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pub struct ReferencedDataset<T: HasTypeId + Clone> {
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pub struct ReferencedDataset<T: Clone> {
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//we use a pointer here to avoid lifetimes
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actual_data: Option<*const T>,
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mutex: Option<mutex::RawMutex>,
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}
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impl<T: HasTypeId + Clone + Default> DataSetIF for OwnedDataset<T> {
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fn get_type_id(&self) -> TypeId {
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self.actual_data.get_type_id()
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impl<T: Clone + Default + 'static> DataSetIF for OwnedDataset<T> {
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fn get_type_id(&self) -> core::any::TypeId {
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core::any::TypeId::of::<T>()
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}
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fn get_actual_data(&self) -> &dyn HasTypeId {
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fn get_actual_data(&self) -> &dyn core::any::Any {
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// only return pointer when threading
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check_global_threading_available!();
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&self.actual_data
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@ -57,7 +44,7 @@ impl<T: HasTypeId + Clone + Default> DataSetIF for OwnedDataset<T> {
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}
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}
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impl<T: HasTypeId + Clone + Default> OwnedDataset<T> {
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impl<T: Clone + Default> OwnedDataset<T> {
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pub fn new() -> OwnedDataset<T> {
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OwnedDataset::<T> {
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actual_data: T::default(),
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@ -90,7 +77,7 @@ impl<T: HasTypeId + Clone + Default> OwnedDataset<T> {
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}
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}
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impl<T: HasTypeId + Clone + Default> ReferencedDataset<T> {
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impl<T: Clone + Default + 'static> ReferencedDataset<T> {
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pub fn new() -> ReferencedDataset<T> {
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ReferencedDataset::<T> {
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actual_data: None,
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@ -121,17 +108,19 @@ impl<T: HasTypeId + Clone + Default> ReferencedDataset<T> {
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owner_of_the_set: objectmanager::ObjectId,
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) -> Result<(), ()> {
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let owner = object_manager.get_object(owner_of_the_set)?;
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let temp: T = T::default(); //TODO find nicer solution whithout local instance and trait bound to Default
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let type_id = temp.get_type_id();
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let type_id = core::any::TypeId::of::<T>();
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let other_set = match owner.get_set(type_id) {
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None => {
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return Err(());
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return Err(()); //TODO panic? -> should initialize just panic if failing?
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}
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Some(set) => set,
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};
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//pointer cast is safe because we checked the type_id
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//getting pointer to avoid lifetime check
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self.actual_data = Some(other_set.get_actual_data() as *const dyn HasTypeId as *const T);
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// let's recheck that owner.get_set did not lie about the type_id
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if let Some(other_data) = other_set.get_actual_data().downcast_ref::<T>() {
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self.actual_data = Some(other_data);
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} else {
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return Err(());
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}
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self.mutex = Some(other_set.get_mutex());
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Ok(())
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}
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@ -24,15 +24,13 @@ struct StoreSlot{
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}
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impl StoreSlot {
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pub fn get_data(&self) -> &[u8] {
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pub fn get_data(&self) -> &mut [u8] {
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check_global_threading_available!();
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unsafe{&(*self.data)}
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unsafe{&mut (*self.data)}
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}
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pub fn get_all_data(&self) -> &[u8] {
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pub fn get_all_data(&self) -> &mut [u8] {
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check_global_threading_available!();
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unsafe{&(*self.data)}
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unsafe{&mut (*self.data)}
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}
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}
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@ -55,8 +55,6 @@ struct HandlerData {
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y: f32
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}
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impl datasets::HasTypeId for HandlerData {}
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struct Handler {
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id: objectmanager::ObjectId,
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command_queue: queues::MessageQueue<10>,
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@ -135,7 +133,7 @@ impl SystemObjectIF for Handler {
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}
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impl datasets::DatapoolOwnerIF for Handler {
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fn get_set(&self, type_id: datasets::TypeId) -> Option<&dyn datasets::DataSetIF>{
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fn get_set(&self, type_id: core::any::TypeId) -> Option<&dyn datasets::DataSetIF>{
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if type_id == self.data.get_type_id(){
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Some(&self.data)
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} else {
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