Diff: Sync.h

Revision:

0:df0a8886a0e9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Sync.h	Mon Mar 09 20:49:13 2015 +0000
@@ -0,0 +1,85 @@
+/*
+ Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef __SYNC_H__
+#define __SYNC_H__
+
+// STL headers
+// C headers
+#include <stdlib.h>
+#include <string.h>
+// Framework headers
+// Library headers
+#include <RF24Network_config.h>
+// Project headers
+
+class RF24Network;
+
+/**
+ * Synchronizes a shared set of variables between multiple nodes
+ */
+
+class Sync
+{
+private:
+  RF24Network& network;
+  uint8_t* app_data; /**< Application's copy of the data */
+  uint8_t* internal_data; /**< Our copy of the data */
+  size_t len; /**< Length of the data in bytes */
+  uint16_t to_node; /**< The other node we're syncing with */
+
+protected:
+public:
+  /**
+   * Constructor
+   *
+   * @param _network Which network to syncrhonize over
+   */
+  Sync(RF24Network& _network): network(_network), app_data(NULL),
+    internal_data(NULL), len(0), to_node(0)
+  {
+  }
+  /**
+   * Begin the object
+   *
+   * @param _to_node Which node we are syncing with
+   */
+  void begin(uint16_t _to_node)
+  {
+    to_node = _to_node;
+  }
+  /**
+   * Declare the shared data set
+   *
+   * @param _data Location of shared data to be syncrhonized
+   */
+  template <class T>
+  void register_me(T& _data)
+  {
+    app_data = reinterpret_cast<uint8_t*>(&_data);
+    len = sizeof(_data);
+    internal_data = reinterpret_cast<uint8_t*>(malloc(len));
+    reset();
+  }
+
+  /**
+   * Reset the internal copy of the shared data set 
+   */
+  void reset(void)
+  {
+    memcpy(internal_data,app_data,len);
+  }
+  
+  /**
+   * Update the network and the shared data set
+   */
+  void update(void);
+};
+
+#endif // __SYNC_H__
+// vim:cin:ai:sts=2 sw=2 ft=cpp