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https://github.com/digistump/DigistumpArduino.git
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86 lines
1.7 KiB
C++
86 lines
1.7 KiB
C++
/*
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Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation.
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*/
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#ifndef __SYNC_H__
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#define __SYNC_H__
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// STL headers
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// C headers
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#include <stdlib.h>
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#include <string.h>
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// Framework headers
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// Library headers
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#include <RF24Network_config.h>
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// Project headers
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class RF24Network;
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/**
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* Synchronizes a shared set of variables between multiple nodes
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*/
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class Sync
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{
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private:
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RF24Network& network;
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uint8_t* app_data; /**< Application's copy of the data */
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uint8_t* internal_data; /**< Our copy of the data */
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size_t len; /**< Length of the data in bytes */
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uint16_t to_node; /**< The other node we're syncing with */
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protected:
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public:
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/**
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* Constructor
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*
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* @param _network Which network to syncrhonize over
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*/
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Sync(RF24Network& _network): network(_network), app_data(NULL),
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internal_data(NULL), len(0), to_node(0)
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{
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}
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/**
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* Begin the object
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*
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* @param _to_node Which node we are syncing with
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*/
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void begin(uint16_t _to_node)
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{
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to_node = _to_node;
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}
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/**
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* Declare the shared data set
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*
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* @param _data Location of shared data to be syncrhonized
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*/
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template <class T>
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void register_me(T& _data)
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{
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app_data = reinterpret_cast<uint8_t*>(&_data);
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len = sizeof(_data);
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internal_data = reinterpret_cast<uint8_t*>(malloc(len));
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reset();
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}
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/**
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* Reset the internal copy of the shared data set
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*/
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void reset(void)
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{
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memcpy(internal_data,app_data,len);
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}
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/**
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* Update the network and the shared data set
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*/
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void update(void);
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};
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#endif // __SYNC_H__
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// vim:cin:ai:sts=2 sw=2 ft=cpp
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