attemt at a CI build with new DSP

core/src/dsp/routing/stream_link.h

@@ -0,0 +1,44 @@
+#pragma once
+#include "../sink.h"
+
+namespace dsp::routing {
+    template <class T>
+    class StreamLink : public Sink<T> {
+        using base_type = Sink<T>;
+    public:
+        StreamLink() {}
+
+        StreamLink(stream<T>* in, stream<T>* out) { init(in, out); }
+
+        void init(stream<T>* in, stream<T>* out) {
+            _out = out;
+            base_type::registerOutput(_out);
+            base_type::init(in);
+        }
+
+        void setOutput(stream<T>* out) {
+            assert(base_type::_block_init);
+            std::lock_guard<std::recursive_mutex> lck(base_type::ctrlMtx);
+            base_type::tempStop();
+            base_type::unregisterOutput(_out);
+            _out = out;
+            base_type::registerOutput(_out);
+            base_type::tempStart();
+        }
+
+        int run() {
+            int count = _in->read();
+            if (count < 0) { return -1; }
+
+            memcpy(_out->writeBuf, _in->readBuf, count * sizeof(T));
+
+            _in->flush();
+            if (!_out->swap(count)) { return -1; }
+            return count;
+        }
+
+    protected:
+        stream<T>* _out;
+
+    };
+}