SDR++ server beta :)

core/src/dsp/link.h

@@ -0,0 +1,54 @@
+#pragma once
+#include <dsp/block.h>
+
+namespace dsp {
+    template <class T>
+    class Link : public generic_block<Link<T>> {
+    public:
+        Link() {}
+
+        Link(stream<T>* a, stream<T>* b) { init(a, b); }
+
+        void init(stream<T>* in, stream<T>* out) {
+            _in = in;
+            _out = out;
+            generic_block<Link<T>>::registerInput(_in);
+            generic_block<Link<T>>::registerOutput(_out);
+            generic_block<Link<T>>::_block_init = true;
+        }
+
+        void setInput(stream<T>* in) {
+            assert(generic_block<Link<T>>::_block_init);
+            std::lock_guard<std::mutex> lck(generic_block<Link<T>>::ctrlMtx);
+            generic_block<Link<T>>::tempStop();
+            generic_block<Link<T>>::unregisterInput(_in);
+            _in = in;
+            generic_block<Link<T>>::registerInput(_in);
+            generic_block<Link<T>>::tempStart();
+        }
+
+        void setOutput(stream<T>* out) {
+            assert(generic_block<Link<T>>::_block_init);
+            std::lock_guard<std::mutex> lck(generic_block<Link<T>>::ctrlMtx);
+            generic_block<Link<T>>::tempStop();
+            generic_block<Link<T>>::unregisterOutput(_out);
+            _out = out;
+            generic_block<Link<T>>::registerOutput(_out);
+            generic_block<Link<T>>::tempStart();
+        }
+
+        int run() {
+            int count = _in->read();
+            if (count < 0) { return -1; }
+
+            memcpy(_out->writeBuf, _in->readBuf, count * sizeof(T));
+
+            _in->flush();
+            return _out->swap(count) ? count : -1;
+        }
+
+    private:
+        stream<T>* _in;
+        stream<T>* _out;
+    };
+}