fix bug in group subs related to undefined feed listeners

Author: toddtreece

src/AdafruitIO_Data.cpp

@@ -14,63 +14,67 @@
 
 AdafruitIO_Data::AdafruitIO_Data()
 {
-  _feed = 0;
   _csv = 0;
   _lat = 0;
   _lon = 0;
   _ele = 0;
   next_data = 0;
 
+  memset(_feed, 0, AIO_FEED_NAME_LENGTH);
   memset(_value, 0, AIO_DATA_LENGTH);
 }
 
 AdafruitIO_Data::AdafruitIO_Data(AdafruitIO_Feed *f)
 {
-  _feed = f->name;
   _csv = 0;
   _lat = 0;
   _lon = 0;
   _ele = 0;
   next_data = 0;
 
+  memset(_feed, 0, AIO_FEED_NAME_LENGTH);
+  strcpy(_feed, f->name);
   memset(_value, 0, AIO_DATA_LENGTH);
 }
 
 AdafruitIO_Data::AdafruitIO_Data(AdafruitIO_Feed *f, char *csv)
 {
-  _feed = f->name;
   _csv = csv;
   _lat = 0;
   _lon = 0;
   _ele = 0;
   next_data = 0;
 
+  memset(_feed, 0, AIO_FEED_NAME_LENGTH);
+  strcpy(_feed, f->name);
   memset(_value, 0, AIO_DATA_LENGTH);
 
   _parseCSV();
 }
 
 AdafruitIO_Data::AdafruitIO_Data(const char *f)
 {
-  _feed = f;
   _csv = 0;
   _lat = 0;
   _lon = 0;
   _ele = 0;
   next_data = 0;
 
+  memset(_feed, 0, AIO_FEED_NAME_LENGTH);
+  strcpy(_feed, f);
   memset(_value, 0, AIO_DATA_LENGTH);
 }
 
 AdafruitIO_Data::AdafruitIO_Data(const char *f, char *csv)
 {
-  _feed = f;
   _csv = csv;
   _lat = 0;
   _lon = 0;
   _ele = 0;
   next_data = 0;
 
+  memset(_feed, 0, AIO_FEED_NAME_LENGTH);
+  strcpy(_feed, f);
   memset(_value, 0, AIO_DATA_LENGTH);
 
   _parseCSV();
@@ -192,7 +196,7 @@ char* AdafruitIO_Data::feedName()
   if(! _feed)
     return (char*)"";
 
-  return (char *)_feed;
+  return _feed;
 }
 
 char* AdafruitIO_Data::value()

src/AdafruitIO_Data.h

@@ -73,7 +73,7 @@ class AdafruitIO_Data {
 
   private:
 
-    const char *_feed;
+    char _feed[AIO_FEED_NAME_LENGTH];
 
     char *_csv;
     char _value[AIO_DATA_LENGTH];

src/AdafruitIO_Definitions.h

@@ -63,6 +63,7 @@ class AdafruitIOGroupCallback {
 
 #define AIO_SSL_FINGERPRINT "26 96 1C 2A 51 07 FD 15 80 96 93 AE F7 32 CE B9 0D 01 55 C4"
 
+#define AIO_FEED_NAME_LENGTH 20
 #define AIO_DATA_LENGTH 45
 
 typedef enum {