RingBuffer util class

src/xenia/base/ring_buffer.h

@@ -0,0 +1,38 @@
+/**
+******************************************************************************
+* Xenia : Xbox 360 Emulator Research Project                                 *
+******************************************************************************
+* Copyright 2015 Ben Vanik. All rights reserved.                             *
+* Released under the BSD license - see LICENSE in the root for more details. *
+******************************************************************************
+*/
+
+#ifndef XENIA_BASE_RING_BUFFER_H_
+#define XENIA_BASE_RING_BUFFER_H_
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace xe {
+
+class RingBuffer {
+  public:
+    RingBuffer(uint8_t *raw_buffer, size_t size, size_t write_offset = 0);
+
+    int Write(uint8_t *buffer, size_t num_bytes);
+
+    size_t DistanceToOffset(size_t offset);
+
+    void SetWriteOffset(size_t write_offset) { write_offset_ = write_offset; }
+    size_t GetWriteOffset() { return write_offset_; }
+
+  private:
+    uint8_t *raw_buffer_;
+    size_t size_;
+    size_t write_offset_;
+};
+
+} // namespace xe
+
+#endif // XENIA_BASE_RING_BUFFER_H_