The KPN SenML library helps you create and parse senml documents in both json and cbor format. The library can be used for sending sensor data and receiving actuator commands.

Revision:
0:a9259748d982
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/senml_double_pack.cpp	Sat May 19 17:35:20 2018 +0000
@@ -0,0 +1,78 @@
+/*  _  __  ____    _   _ 
+ * | |/ / |  _ \  | \ | |
+ * | ' /  | |_) | |  \| |
+ * | . \  |  __/  | |\  |
+ * |_|\_\ |_|     |_| \_|
+ * 
+ * (c) 2018 KPN
+ * License: MIT License.
+ * Author: Jan Bogaerts
+ * 
+ * pack (document) with double base values
+ */
+
+
+#include <senml_double_pack.h> 
+#include <senml_helpers.h>
+#include <cbor.h> 
+
+
+void SenMLDoublePack::setupStreamCtx(Stream *dest, SenMLStreamMethod format)
+{
+    SenMLPack::setupStreamCtx(dest, format);
+    _streamCtx->baseValue.baseDouble = this->getBaseValue();
+    _streamCtx->baseSum.baseDouble = this->getBaseValue();
+    _streamCtx->baseDataType = CBOR_TYPE_DOUBLE;
+}
+
+void SenMLDoublePack::setupStreamCtx(char *dest, int length, SenMLStreamMethod format)
+{
+    SenMLPack::setupStreamCtx(dest, length, format);
+    _streamCtx->baseValue.baseDouble = this->getBaseValue();
+    _streamCtx->baseSum.baseDouble = this->getBaseValue();
+    _streamCtx->baseDataType = CBOR_TYPE_DOUBLE;
+}
+
+void SenMLDoublePack::fieldsToJson() 
+{
+    double val;
+    SenMLPack::fieldsToJson();
+    val = this->getBaseValue();
+    if(val != 0){
+        printText(",\"bv\":", 6);
+        printDouble(val, SENML_MAX_DOUBLE_PRECISION);
+    }
+
+    val = this->getBaseSum();
+    if(val != 0){
+        printText(",\"bs\":", 6);
+        printDouble(val, SENML_MAX_DOUBLE_PRECISION);
+    }
+
+}
+
+int SenMLDoublePack::fieldsToCbor() 
+{
+    int val;
+    int res = SenMLPack::fieldsToCbor();
+    
+    val = this->getBaseValue();
+    if(val){
+        res += cbor_serialize_int(SENML_CBOR_VB_LABEL);
+        res += cbor_serialize_double(val);
+    }
+
+    val = this->getBaseSum();
+    if(val){
+        res += cbor_serialize_int(SENML_CBOR_BS_LABEL);
+        res += cbor_serialize_double(val);
+    }
+    return res;
+}
+
+
+
+
+
+
+