Initial community commit

Src/nu/SpillBuffer.h

@@ -0,0 +1,23 @@
+#pragma once
+
+class SpillBuffer
+{
+public:
+	SpillBuffer();
+	~SpillBuffer();
+	bool reserve(size_t bytes);
+	void clear();
+	void reset();
+	size_t write(const void *src, size_t len);
+	bool get(void **buffer, size_t *len);
+	bool full() const;
+	bool empty() const;
+	void remove(size_t len); // removes len bytes from the start of the spill buffer
+	size_t remaining() const; // how many bytes to fill it up
+	size_t length() const; /* buffer length when full */
+
+private:
+	volatile size_t spillBufferUsed;
+	size_t spillBufferSize;
+	char *spillBuffer;
+};