Initial commit of Arduino libraries

AsyncMQTT_ESP32/src/AsyncMqttClient/Packets/Out/OutPacket.hpp

@@ -0,0 +1,55 @@
+/****************************************************************************************************************************
+  OutPacket.hpp
+  
+  AsyncMQTT_ESP32 is a library for ESP32 boards using WiFi or LwIP W5500 / W6100 / ENC28J60 / LAN8720 Ethernet
+
+  Based on and modified from :
+
+  1) async-mqtt-client (https://github.com/marvinroger/async-mqtt-client)
+  2) AsyncMQTT_Generic (https://github.com/khoih-prog/AsyncMQTT_Generic)
+
+  Built by Khoi Hoang https://github.com/khoih-prog/AsyncMQTT_ESP32
+ *****************************************************************************************************************************/
+
+#pragma once
+
+#ifndef OUT_PACKET_HPP
+#define OUT_PACKET_HPP
+
+#include <stdint.h>  // uint*_t
+#include <stddef.h>  // size_t
+#include <algorithm>  // std::min
+
+#include "../../Flags.hpp"
+
+namespace AsyncMqttClientInternals 
+{
+  class OutPacket 
+  {
+    public:
+      OutPacket();
+      virtual ~OutPacket();
+      virtual const uint8_t* data(size_t index = 0) const = 0;
+      virtual size_t size() const = 0;
+      bool released() const;
+      uint8_t packetType() const;
+      uint16_t packetId() const;
+      uint8_t qos() const;
+      void release();
+
+    public:
+      OutPacket* next;
+      uint32_t timeout;
+      uint8_t noTries;
+
+    protected:
+      static uint16_t _getNextPacketId();
+      bool _released;
+      uint16_t _packetId;
+
+    private:
+      static uint16_t _nextPacketId;  
+  };
+}  // namespace AsyncMqttClientInternals
+
+#endif    // OUT_PACKET_HPP