fix dump of divisor

ChangeLog.md

@@ -2,6 +2,7 @@
 ## Bug Fixes
 * fix for device string symlink with colon
 * fix "read" and "write" command response
+* fix dump of divisor
 
 
 # 24.1 (2024-10-27)

src/ebusd/bushandler.cpp

@@ -191,7 +191,7 @@ bool decodeType(const DataType* type, const SymbolString& input, size_t length,
       first = false;
       *output << endl << " ";
       ostringstream::pos_type cnt = output->tellp();
-      type->dump(OF_NONE, length, false, output);
+      type->dump(OF_NONE, length, ad_none, output);
       cnt = output->tellp() - cnt;
       while (cnt < 5) {
         *output << " ";

src/ebusd/main.cpp

@@ -394,7 +394,7 @@ int main(int argc, char* argv[], char* envp[]) {
       }
       if (s_opt.dumpConfig & OF_JSON) {
         *out << "{\"datatypes\":[";
-        DataTypeList::getInstance()->dump(s_opt.dumpConfig, true, out);
+        DataTypeList::getInstance()->dump(s_opt.dumpConfig, out);
         *out << "],\"templates\":[";
         const auto tmpl = s_scanHelper->getTemplates("");
         tmpl->dump(s_opt.dumpConfig, out);

src/ebusd/mainloop.cpp

@@ -2279,7 +2279,7 @@ result_t MainLoop::executeGet(const vector<string>& args, bool* connected, ostri
   if (uri == "/datatypes") {
     *ostream << "[";
     OutputFormat verbosity = OF_NAMES|OF_JSON|OF_ALL_ATTRS;
-    DataTypeList::getInstance()->dump(verbosity, true, ostream);
+    DataTypeList::getInstance()->dump(verbosity, ostream);
     *ostream << "\n]";
     type = 6;
     *connected = false;

src/lib/ebus/data.cpp

@@ -555,7 +555,7 @@ void SingleDataField::dumpPrefix(bool prependFieldSeparator, OutputFormat output
     }
     *output << FIELD_SEPARATOR;
   }
-  m_dataType->dump(outputFormat, m_length, true, output);
+  m_dataType->dump(outputFormat, m_length, ad_normal, output);
 }
 
 void SingleDataField::dumpSuffix(OutputFormat outputFormat, ostream* output) const {

src/lib/ebus/datatype.cpp

@@ -124,7 +124,7 @@ uint16_t floatToUint16(float value) {
   return static_cast<uint16_t>((shift << 11) | (negative ? 0x8000 | (0x800-sig) : sig));
 }
 
-bool DataType::dump(OutputFormat outputFormat, size_t length, bool appendDivisor, ostream* output) const {
+bool DataType::dump(OutputFormat outputFormat, size_t length, AppendDivisor appendDivisor, ostream* output) const {
   if (outputFormat & OF_JSON) {
     *output << "\"type\": \"" << m_id << "\", \"isbits\": "
             << (getBitCount() < 8 ? "true" : "false");
@@ -149,7 +149,7 @@ bool DataType::dump(OutputFormat outputFormat, size_t length, bool appendDivisor
         *output << static_cast<unsigned>(length);
       }
     }
-    if (appendDivisor) {
+    if (appendDivisor != ad_none) {
       *output << FIELD_SEPARATOR;
     }
   }
@@ -157,7 +157,7 @@ bool DataType::dump(OutputFormat outputFormat, size_t length, bool appendDivisor
 }
 
 
-bool StringDataType::dump(OutputFormat outputFormat, size_t length, bool appendDivisor, ostream* output) const {
+bool StringDataType::dump(OutputFormat outputFormat, size_t length, AppendDivisor appendDivisor, ostream* output) const {
   DataType::dump(outputFormat, length, appendDivisor, output);
   if ((outputFormat & OF_JSON) && (outputFormat & OF_ALL_ATTRS)) {
     *output << ", \"result\": \"" << (isIgnored() ? "void" : "string") << "\"";
@@ -300,7 +300,7 @@ result_t StringDataType::writeSymbols(size_t offset, size_t length, istringstrea
 }
 
 
-bool DateTimeDataType::dump(OutputFormat outputFormat, size_t length, bool appendDivisor, ostream* output) const {
+bool DateTimeDataType::dump(OutputFormat outputFormat, size_t length, AppendDivisor appendDivisor, ostream* output) const {
   DataType::dump(outputFormat, length, appendDivisor, output);
   if ((outputFormat & OF_JSON) && (outputFormat & OF_ALL_ATTRS)) {
     *output << ", \"result\": \"" << (hasDate() ? hasTime() ? "datetime" : "date" : "time") << "\"";
@@ -672,7 +672,7 @@ size_t NumberDataType::calcPrecision(int divisor) {
   return precision;
 }
 
-bool NumberDataType::dump(OutputFormat outputFormat, size_t length, bool appendDivisor, ostream* output) const {
+bool NumberDataType::dump(OutputFormat outputFormat, size_t length, AppendDivisor appendDivisor, ostream* output) const {
   if (m_bitCount < 8) {
     DataType::dump(outputFormat, m_bitCount, appendDivisor, output);
   } else {
@@ -681,11 +681,17 @@ bool NumberDataType::dump(OutputFormat outputFormat, size_t length, bool appendD
   if ((outputFormat & OF_JSON) && (outputFormat & OF_ALL_ATTRS)) {
     *output << ", \"result\": \"number\"";
   }
-  if (!appendDivisor) {
+  if (appendDivisor == ad_none) {
     return false;
   }
   bool ret = false;
-  if (m_baseType) {
+  if (appendDivisor == ad_full && m_divisor != 1) {
+    if (outputFormat & OF_JSON) {
+      *output << ", \"divisor\": ";
+    }
+    *output << m_divisor;
+    ret = true;
+  } else if (m_baseType) {
     if (m_baseType->m_divisor != m_divisor) {
       if (outputFormat & OF_JSON) {
         *output << ", \"divisor\": ";
@@ -693,12 +699,6 @@ bool NumberDataType::dump(OutputFormat outputFormat, size_t length, bool appendD
       *output << (m_divisor / m_baseType->m_divisor);
       ret = true;
     }
-  } else if (m_divisor != 1) {
-    if (outputFormat & OF_JSON) {
-      *output << ", \"divisor\": ";
-    }
-    *output << m_divisor;
-    ret = true;
   }
   if (ret && (outputFormat & OF_JSON) && (outputFormat & OF_ALL_ATTRS)) {
     *output << ", \"precision\": " << static_cast<unsigned>(getPrecision());
@@ -1317,7 +1317,7 @@ DataTypeList* DataTypeList::getInstance() {
   return &s_instance;
 }
 
-void DataTypeList::dump(OutputFormat outputFormat, bool appendDivisor, ostream* output) const {
+void DataTypeList::dump(OutputFormat outputFormat, ostream* output) const {
   bool json = outputFormat & OF_JSON;
   string sep = "\n";
   for (const auto &it : m_typesById) {
@@ -1329,9 +1329,9 @@ void DataTypeList::dump(OutputFormat outputFormat, bool appendDivisor, ostream*
       *output << sep << "  {";
     }
     if ((dataType->getBitCount() % 8) != 0) {
-      dataType->dump(outputFormat, dataType->getBitCount(), appendDivisor, output);
+      dataType->dump(outputFormat, dataType->getBitCount(), ad_full, output);
     } else {
-      dataType->dump(outputFormat, dataType->getBitCount() / 8, appendDivisor, output);
+      dataType->dump(outputFormat, dataType->getBitCount() / 8, ad_full, output);
     }
     if (json) {
       *output << "}";

src/lib/ebus/datatype.h

@@ -137,6 +137,13 @@ constexpr inline enum OutputFormat operator~ (enum OutputFormat self) {
   return (enum OutputFormat)(~(OutputFormatBaseType)self);
 }
 
+/** whether divisor should be appended to a dump. */
+enum AppendDivisor {
+  ad_none,      //!< no dump of divisor
+  ad_normal,    //!< regular dump of divisor (i.e. not for base types)
+  ad_full,  //!< full dump of divisor (i.e. also for base types)
+};
+
 /** the message part in which a data field is stored. */
 enum PartType {
   pt_any,          //!< stored in any data (master or slave)
@@ -286,7 +293,7 @@ class DataType {
    * @param output the @a ostream to dump to.
    * @return true when a non-default divisor was written to the output.
    */
-  virtual bool dump(OutputFormat outputFormat, size_t length, bool appendDivisor, ostream* output) const;
+  virtual bool dump(OutputFormat outputFormat, size_t length, AppendDivisor appendDivisor, ostream* output) const;
 
   /**
    * Internal method for reading the numeric raw value from a @a SymbolString.
@@ -363,7 +370,7 @@ class StringDataType : public DataType {
   virtual ~StringDataType() {}
 
   // @copydoc
-  bool dump(OutputFormat outputFormat, size_t length, bool appendDivisor, ostream* output) const override;
+  bool dump(OutputFormat outputFormat, size_t length, AppendDivisor appendDivisor, ostream* output) const override;
 
   // @copydoc
   result_t readRawValue(size_t offset, size_t length, const SymbolString& input,
@@ -410,7 +417,7 @@ class DateTimeDataType : public DataType {
   virtual ~DateTimeDataType() {}
 
   // @copydoc
-  bool dump(OutputFormat outputFormat, size_t length, bool appendDivisor, ostream* output) const override;
+  bool dump(OutputFormat outputFormat, size_t length, AppendDivisor appendDivisor, ostream* output) const override;
 
   /**
    * @return true if date part is present.
@@ -503,7 +510,7 @@ class NumberDataType : public DataType {
   static size_t calcPrecision(int divisor);
 
   // @copydoc
-  bool dump(OutputFormat outputFormat, size_t length, bool appendDivisor, ostream* output) const override;
+  bool dump(OutputFormat outputFormat, size_t length, AppendDivisor appendDivisor, ostream* output) const override;
 
   /**
    * Derive a new @a NumberDataType from this.
@@ -658,10 +665,9 @@ class DataTypeList {
   /**
    * Dump the type list optionally including the divisor to the output.
    * @param outputFormat the @a OutputFormat options.
-   * @param appendDivisor whether to append the divisor (if available).
    * @param output the @a ostream to dump to.
    */
-  void dump(OutputFormat outputFormat, bool appendDivisor, ostream* output) const;
+  void dump(OutputFormat outputFormat, ostream* output) const;
 
   /**
    * Removes all @a DataType instances.

src/lib/ebus/test/test_message.cpp

@@ -221,6 +221,8 @@ int main() {
       "    ]\n"
       "   }: \n"
       "     \"field\": {\"value\": 42, \"raw\": [42]}", "ff75b509030d0100", "012a", "jNr"},
+    {"r,CIRCUIT,NAME,COMMENT,,,,0100,field,,temp", "r,cirCIRCUITcuit,naNAMEme,comCOMMENTment,ff,75,b509,0d0100,field,s,D2C,,°C,Temperatur: field=42.00 °C [Temperatur]", "ff75b509030d0100", "02a002", "DN"},
+    {"r,CIRCUIT,NAME,COMMENT,,,,0100,field,,D2C,,°C,Temperatur", "r,cirCIRCUITcuit,naNAMEme,comCOMMENTment,ff,75,b509,0d0100,field,s,D2C,,°C,Temperatur: field=42.00 °C [Temperatur]", "ff75b509030d0100", "02a002", "DN"},
   };
   templates = new DataFieldTemplates();
   unsigned int lineNo = 0;