Payload.h

00001 /**************************************************************************************
00002  * Copyright (c) 2016, Tomoaki Yamaguchi
00003  *
00004  * All rights reserved. This program and the accompanying materials
00005  * are made available under the terms of the Eclipse Public License v1.0
00006  * and Eclipse Distribution License v1.0 which accompany this distribution.
00007  *
00008  * The Eclipse Public License is available at
00009  *    http://www.eclipse.org/legal/epl-v10.html
00010  * and the Eclipse Distribution License is available at
00011  *   http://www.eclipse.org/org/documents/edl-v10.php.
00012  *
00013  * Contributors:
00014  *    Tomoaki Yamaguchi - initial API and implementation and/or initial documentation
00015  **************************************************************************************/
00016 
00017 #ifndef PAYLOAD_H_
00018 #define PAYLOAD_H_
00019 
00020 #include "LMqttsnClientApp.h"
00021 
00022 #define MSGPACK_FALSE    0xc2
00023 #define MSGPACK_TRUE     0xc3
00024 #define MSGPACK_POSINT   0x80
00025 #define MSGPACK_NEGINT   0xe0
00026 #define MSGPACK_UINT8    0xcc
00027 #define MSGPACK_UINT16   0xcd
00028 #define MSGPACK_UINT32   0xce
00029 #define MSGPACK_INT8     0xd0
00030 #define MSGPACK_INT16    0xd1
00031 #define MSGPACK_INT32    0xd2
00032 #define MSGPACK_FLOAT32  0xca
00033 #define MSGPACK_FIXSTR   0xa0
00034 #define MSGPACK_STR8     0xd9
00035 #define MSGPACK_STR16    0xda
00036 #define MSGPACK_ARRAY15  0x90
00037 #define MSGPACK_ARRAY16  0xdc
00038 #define MSGPACK_MAX_ELEMENTS   50   // Less than 256
00039 
00040 namespace linuxAsyncClient {
00041 /*=====================================
00042         Class Payload
00043   =====================================*/
00044 class Payload{
00045 public:
00046     Payload();
00047     Payload(uint16_t len);
00048     ~Payload();
00049 
00050 /*---------------------------------------------
00051   getLen() and getRowData() are
00052   minimum required functions of Payload class.
00053 ----------------------------------------------*/
00054     uint16_t getLen();       // get data length
00055     uint8_t* getRowData();   // get data pointer
00056 
00057 /*--- Functions for MessagePack ---*/
00058     void init(void);
00059     int8_t set_bool(bool val);
00060     int8_t set_uint32(uint32_t val);
00061     int8_t set_int32(int32_t val);
00062     int8_t set_float(float val);
00063     int8_t set_str(char* val);
00064     int8_t set_str(const char* val);
00065     int8_t set_array(uint8_t val);
00066 
00067     bool    get_bool(uint8_t index);
00068     uint8_t getArray(uint8_t index);
00069     uint32_t get_uint32(uint8_t index);
00070     int32_t  get_int32(uint8_t index);
00071     float    get_float(uint8_t index);
00072     const char* get_str(uint8_t index, uint16_t* len);
00073 
00074     void     setRowData(uint8_t* payload, uint16_t payloadLen);
00075     uint16_t getAvailableLength();
00076 private:
00077     uint8_t* getBufferPos(uint8_t index);
00078     uint8_t* _buff;
00079     uint16_t _len;
00080     uint8_t  _elmCnt;
00081     uint8_t* _pos;
00082     uint8_t  _memDlt;
00083 };
00084 
00085 } /* linuxAsyncClient */
00086 
00087 #endif /* PAYLOAD_H_ */