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use 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::Pmt;
use crate::runtime::StreamIo;
use crate::runtime::StreamIoBuilder;
pub struct MessageSink {
n_received: u64,
}
impl MessageSink {
pub fn new() -> Block {
Block::new_async(
BlockMetaBuilder::new("MessageSink").build(),
StreamIoBuilder::new().build(),
MessageIoBuilder::new()
.register_sync_input(
"in",
|block: &mut MessageSink,
_mio: &mut MessageIo<MessageSink>,
_meta: &mut BlockMeta,
_p: Pmt| {
block.n_received += 1;
Ok(Pmt::U64(block.n_received))
},
)
.build(),
MessageSink { n_received: 0 },
)
}
pub fn received(&self) -> u64 {
self.n_received
}
}
#[async_trait]
impl AsyncKernel for MessageSink {
async fn deinit(
&mut self,
_sio: &mut StreamIo,
_mio: &mut MessageIo<Self>,
_b: &mut BlockMeta,
) -> Result<()> {
debug!("n_received: {}", self.n_received);
Ok(())
}
}
pub struct MessageSinkBuilder {}
impl MessageSinkBuilder {
pub fn new() -> MessageSinkBuilder {
MessageSinkBuilder {}
}
pub fn build(&mut self) -> Block {
MessageSink::new()
}
}
impl Default for MessageSinkBuilder {
fn default() -> Self {
Self::new()
}
}