Fix ring buffer compilation error

[kchugalinskiy]

Current version of idf provides alternative naming for ring buffer type. see this for details

[chegewara]

This cant be merged since it will brake v3.3 compatibility. Maybe to different branch, not master.

[h2zero]

I've seen this come up a lot, I thought I'd share the fix I used in NimBLE library.

FreeRTOS.h

class Ringbuffer {
public:
#ifdef ESP_IDF_VERSION //Quick hack to detect if using IDF version that replaced ringbuf_type_t
    Ringbuffer(size_t length, RingbufferType_t type = RINGBUF_TYPE_NOSPLIT);
#else
    Ringbuffer(size_t length, ringbuf_type_t type = RINGBUF_TYPE_NOSPLIT);
#endif
    ~Ringbuffer();

    void*    receive(size_t* size, TickType_t wait = portMAX_DELAY);
    void     returnItem(void* item);
    bool     send(void* data, size_t length, TickType_t wait = portMAX_DELAY);
private:
    RingbufHandle_t m_handle;
};

FreeRTOS.cpp

/**
 * @brief Create a ring buffer.
 * @param [in] length The amount of storage to allocate for the ring buffer.
 * @param [in] type The type of buffer.  One of RINGBUF_TYPE_NOSPLIT, RINGBUF_TYPE_ALLOWSPLIT, RINGBUF_TYPE_BYTEBUF.
 */
#ifdef ESP_IDF_VERSION //Quick hack to detect if using IDF version that replaced ringbuf_type_t
Ringbuffer::Ringbuffer(size_t length, RingbufferType_t type) {
#else
Ringbuffer::Ringbuffer(size_t length, ringbuf_type_t type) {
#endif
    m_handle = ::xRingbufferCreate(length, type);
} // Ringbuffer


Ringbuffer::~Ringbuffer() {
    ::vRingbufferDelete(m_handle);
} // ~Ringbuffer