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use std::marker::PhantomData;
use std::mem;
use crate::anyhow::Result;
use crate::runtime::AsyncKernel;
use crate::runtime::Block;
use crate::runtime::BlockMeta;
use crate::runtime::BlockMetaBuilder;
use crate::runtime::MessageIo;
use crate::runtime::MessageIoBuilder;
use crate::runtime::StreamIo;
use crate::runtime::StreamIoBuilder;
use crate::runtime::WorkIo;
pub struct VectorSink<T> {
items: Vec<T>,
}
impl<T: Clone + std::fmt::Debug + Send + Sync + 'static> VectorSink<T> {
pub fn new(capacity: usize) -> Block {
Block::new_async(
BlockMetaBuilder::new("VectorSink").build(),
StreamIoBuilder::new()
.add_input("in", mem::size_of::<T>())
.build(),
MessageIoBuilder::<Self>::new().build(),
VectorSink {
items: Vec::<T>::with_capacity(capacity),
},
)
}
pub fn items(&self) -> &Vec<T> {
&self.items
}
}
#[async_trait]
impl<T: Clone + std::fmt::Debug + Send + Sync + 'static> AsyncKernel for VectorSink<T> {
async fn work(
&mut self,
io: &mut WorkIo,
sio: &mut StreamIo,
_mio: &mut MessageIo<Self>,
_meta: &mut BlockMeta,
) -> Result<()> {
let i = sio.input(0).slice::<T>();
self.items.extend_from_slice(i);
sio.input(0).consume(i.len());
if sio.input(0).finished() {
io.finished = true;
}
Ok(())
}
}
pub struct VectorSinkBuilder<T> {
capacity: usize,
_foo: PhantomData<T>,
}
impl<T: Clone + std::fmt::Debug + Send + Sync + 'static> VectorSinkBuilder<T> {
pub fn new() -> VectorSinkBuilder<T> {
VectorSinkBuilder {
capacity: 8192,
_foo: PhantomData,
}
}
#[must_use]
pub fn init_capacity(mut self, n: usize) -> VectorSinkBuilder<T> {
self.capacity = n;
self
}
pub fn build(self) -> Block {
VectorSink::<T>::new(self.capacity)
}
}
impl<T: Clone + std::fmt::Debug + Send + Sync + 'static> Default for VectorSinkBuilder<T> {
fn default() -> Self {
Self::new()
}
}