even more stuff

core/src/dsp/sink/handler_sink.h

@@ -0,0 +1,34 @@
+#pragma once
+#include "../sink.h"
+
+namespace dsp::sink {
+    template <class T>
+    class Handler : public Sink<T> {
+        using base_type = Sink<T>;
+    public:
+        Handler() {}
+
+        Handler(stream<T>* in, void (*handler)(T* data, int count, void* ctx), void* ctx) { init(in, handler, ctx); }
+
+        void init(stream<T>* in, void (*handler)(T* data, int count, void* ctx), void* ctx) {
+            _handler = handler;
+            _ctx = ctx;
+            base_type::init(in);
+        }
+
+        int run() {
+            int count = base_type::_in->read();
+            if (count < 0) { return -1; }
+
+            _handler(_in->readBuf, count, _ctx);
+
+            base_type::_in->flush();
+            return count;
+        }
+
+    protected:
+        void (*_handler)(T* data, int count, void* ctx);
+        void* _ctx;
+
+    };
+}

core/src/dsp/sink/null_sink.h

@@ -0,0 +1,20 @@
+#pragma once
+#include "../sink.h"
+
+namespace dsp::sink {
+    template <class T>
+    class Null : public Sink<T> {
+        using base_type = Sink<T>;
+    public:
+        Null() {}
+
+        Null(stream<T>* in, void (*handler)(T* data, int count, void* ctx), void* ctx) { base_type::init(in); }
+
+        int run() {
+            int count = base_type::_in->read();
+            if (count < 0) { return -1; }
+            base_type::_in->flush();
+            return count;
+        }
+    };
+}