37 lines
859 B
C
37 lines
859 B
C
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#ifndef _PACKET_H_
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#define _PACKET_H_
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#include "protocol.h"
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#include <Wire.h>
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#define PKTREAD_OK 0
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#define PKTREAD_EMPTY 1
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#define PKTREAD_OVERFLOW 2
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#define PKTREAD_INVALID_DISCOVER_FORMAT 3
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#define PKTREAD_INVALID_MESSAGE_FORMAT 4
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class Packet {
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private:
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// 1. common
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uint8_t buf[];
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uint8_t bufsize;
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bool type; // true = discover ; false = message
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// 2. wrappers
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struct discover dsc;
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struct message msg;
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// 3. helpers
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uint8_t read_discover(uint8_t buf[], uint8_t size);
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uint8_t read_message(uint8_t buf[], uint8_t size);
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public:
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// builds a packet from raw data and returns the status code
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uint8_t read(uint8_t buf[], uint8_t size);
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// writes the binary representation of the packet
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uint8_t write(uint8_t buf[], uint8_t size);
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};
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#endif
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