Precommit (#1)

* first commit

* cleanup

global/tracefifo/trace_fifo_posix.h

@@ -0,0 +1,82 @@
+#if !defined TRACE_FIFO_POSIX_H && defined __unix__
+#define TRACE_FIFO_POSIX_H
+
+#ifndef TRACE_FIFO_H
+#error Do not include this file directly. Include trace_fifo.h instead.
+#endif
+
+/**
+* @brief Trace fifo shared memory class for Posix.
+*/
+class CTraceFifoPosix : public CTraceFifoBase
+{
+public:
+    /**
+     * @brief Default constructor
+     * @param[in] uiInstanceID The instance ID to use for sending/monitoring the messages.
+     * @param[in] nSize Size of the fifo.
+     */
+    CTraceFifoPosix(uint32_t uiInstanceID = 1000u, size_t nSize = 16*1024);
+
+    /**
+     * @brief Default destructor
+     * @remarks Automatically closes the fifo if opened before.
+     */
+    virtual ~CTraceFifoPosix();
+
+    /**
+     * @brief Copy constructor is not available.
+     * @param[in] rfifo Reference to the fifo to copy.
+     */
+    CTraceFifoPosix(const CTraceFifoPosix& rfifo) = delete;
+
+    /**
+     * @brief Move constructor.
+     * @param[in] rfifo Reference to the fifo.
+     */
+    CTraceFifoPosix(CTraceFifoPosix&& rfifo);
+
+    /**
+     * @brief Copy assignment is not available.
+     * @param[in] rfifo Reference to the fifo.
+     * @return Returns a reference to this fifo.
+     */
+    CTraceFifoPosix& operator=(const CTraceFifoPosix& rfifo) = delete;
+
+    /**
+     * @brief Move assignment.
+     * @param[in] rfifo Reference to the fifo.
+     * @return Returns a reference to this fifo.
+     */
+    CTraceFifoPosix& operator=(CTraceFifoPosix&& rfifo);
+
+    /**
+     * @brief Open the fifo. Overload of CTraceFifoBase::Open.
+     * @param[in] nTimeout Timeout to return from this function. A timeout of 0xffffffff does not return until a connection has been
+     * established.
+     * @param[in] uiFlags Zero or more flags of ETraceFifoOpenFlags enum.
+     * @return Returns true when connected; false otherwise.
+     */
+    virtual bool Open(size_t nTimeout = 1000, uint32_t uiFlags = 0u) override;
+
+    // Ignore cppcheck warning for not using dynamic binding when being called through the destructor.
+    // cppcheck-suppress virtualCallInConstructor
+    /**
+     * @brief Cancel any running task and close an open fifo. Overload of CTraceFifoBase::Close.
+     */
+    virtual void Close() override;
+
+    /**
+     * @brief Is the fifo open for reading and writing? Overload of CTraceFifoBase::IsOpened.
+     * @return Returns true when opened; false otherwise.
+     */
+    virtual bool IsOpened() const override;
+
+private:
+    int     m_iFileDescr = 0;   ///< File descriptor of the shared memory.
+};
+
+/// The Posix implementation of the trace fifo.
+using CTraceFifoImpl = CTraceFifoPosix;
+
+#endif // !defined TRACE_FIFO_POSIX_H