1 files changed, 33 insertions, 0 deletions
diff --git a/tools/gator/daemon/Fifo.h b/tools/gator/daemon/Fifo.h
new file mode 100644
index 00000000000..548ba278806
--- /dev/null
+++ b/tools/gator/daemon/Fifo.h
@@ -0,0 +1,33 @@
+/**
+ * Copyright (C) ARM Limited 2010-2012. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef	__FIFO_H__
+#define	__FIFO_H__
+
+#include <semaphore.h>
+
+class Fifo {
+public:
+	Fifo(int singleBufferSize, int totalBufferSize);
+	~Fifo();
+	int numBytesFilled();
+	bool isEmpty();
+	bool isFull();
+	bool willFill(int additional);
+	char* start();
+	char* write(int length);
+	char* read(int* length);
+
+private:
+	int		mSingleBufferSize, mWrite, mRead, mReadCommit, mRaggedEnd, mWrapThreshold;
+	sem_t	mWaitForSpaceSem, mWaitForDataSem;
+	char*	mBuffer;
+	bool	mEnd;
+};
+
+#endif 	//__FIFO_H__