Adding sync block macro

oxydsp-flowgraph/src/main.rs

@@ -1,7 +1,11 @@
-use oxydsp_flowgraph::edge::{In, Out};
-use oxydsp_flowgraph_macros::BlockIO;
+use oxydsp_flowgraph::{
+    block::SyncBlock,
+    edge::{In, Out},
+};
+use oxydsp_flowgraph_macros::{BlockIO, sync_block};
 
 #[derive(BlockIO)]
+//#[sync_block]
 pub struct Test
 {
     #[input]
@@ -11,4 +15,35 @@ pub struct Test
     output: Out<u32>,
 }
 
+impl oxydsp_flowgraph::block::Block for Test
+{
+    fn work(&mut self) -> oxydsp_flowgraph::block::BlockResult
+    {
+        let mut len = usize::MAX;
+        let mut input_reader = self.input.read();
+        len = len.min(input_reader.len());
+        let mut output_writer = self.output.write();
+        len = len.min(output_writer.len());
+        for _ in 0..len
+        {
+            let input = input_reader.pop().unwrap();
+            let (output_out,) = self.sync_work((input,));
+            output_writer.push(output_out).unwrap();
+        }
+        oxydsp_flowgraph::block::BlockResult::Ok
+    }
+}
+
+impl SyncBlock for Test
+{
+    type Input = (u32,);
+
+    type Output = (u32,);
+
+    fn sync_work(&mut self, (num,): Self::Input) -> Self::Output
+    {
+        (num,)
+    }
+}
+
 fn main() {}