1 files changed, 35 insertions, 0 deletions
diff --git a/tools/gator/daemon/Fifo.h b/tools/gator/daemon/Fifo.h
new file mode 100644
index 00000000000..d46e1afa9e1
--- /dev/null
+++ b/tools/gator/daemon/Fifo.h
@@ -0,0 +1,35 @@
+/**
+ * Copyright (C) ARM Limited 2010-2013. 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, sem_t* readerSem);
+	~Fifo();
+	int numBytesFilled() const;
+	bool isEmpty() const;
+	bool isFull() const;
+	bool willFill(int additional) const;
+	char* start() const;
+	char* write(int length);
+	void release();
+	char* read(int *const length);
+
+private:
+	int		mSingleBufferSize, mWrite, mRead, mReadCommit, mRaggedEnd, mWrapThreshold;
+	sem_t	mWaitForSpaceSem;
+	sem_t* mReaderSem;
+	char*	mBuffer;
+	bool	mEnd;
+};
+
+#endif 	//__FIFO_H__