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added support for reciprocal divisor, corrected divisor for derived number types (was combined with base datatype divisor instead of actual field divisor)

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john30
2015-03-07 11:48:08 +01:00
parent f4f2bbe2a6
commit ed3ef3f5e4
3 changed files with 159 additions and 70 deletions
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src/lib/ebus/data.h
+30 -18
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@@ -75,14 +75,14 @@ static const unsigned int REQ = 0x100;//!< value may not be NULL
/** The structure for defining field types with their properties. */
typedef struct {
const char* name; //!< field identifier
const unsigned char bitCount; //!< number of bits (maximum length if @a ADJ flag is set, must be multiple of 8 with flag @a BCD)
const BaseType type; //!< base data type
const unsigned short flags; //!< flags (e.g. @a BCD)
const unsigned int replacement; //!< replacement value (fill-up value for @a bt_str / @a bt_hexstr, no replacement if equal to @a minValueOrLength for @a bt_num)
const unsigned int minValueOrLength; //!< minimum binary value (minimum length of string for @a StringDataField)
const unsigned int maxValueOrLength; //!< maximum binary value (maximum length of string for @a StringDataField)
const unsigned short divisorOrFirstBit; //!< @a bt_number: divisor or offset to first bit (if (@a bitCount%8)!=0)
const char* name; //!< field identifier
const unsigned char bitCount; //!< number of bits (maximum length if @a ADJ flag is set, must be multiple of 8 with flag @a BCD)
const BaseType type; //!< base data type
const unsigned short flags; //!< flags (e.g. @a BCD)
const unsigned int replacement; //!< replacement value (fill-up value for @a bt_str / @a bt_hexstr, no replacement if equal to @a minValueOrLength for @a bt_num)
const unsigned int minValueOrLength; //!< minimum binary value (minimum length of string for @a StringDataField)
const unsigned int maxValueOrLength; //!< maximum binary value (maximum length of string for @a StringDataField)
const short divisorOrFirstBit; //!< @a bt_number: divisor (negative for reciprocal) or offset to first bit (if (@a bitCount%8)!=0)
} dataType_t;
/** the maximum position within master or slave data. */
@@ -100,6 +100,18 @@ typedef struct {
*/
unsigned int parseInt(const char* str, int base, const unsigned int minValue, const unsigned int maxValue, result_t& result, unsigned int* length=NULL);
/**
* Parse a signed int value.
* @param str the string to parse.
* @param base the numerical base.
* @param minValue the minimum resulting value.
* @param maxValue the maximum resulting value.
* @param result the variable in which to store an error code when parsing failed or the value is out of bounds.
* @param length the optional variable in which to store the number of read characters.
* @return the parsed value.
*/
int parseSignedInt(const char* str, int base, const int minValue, const int maxValue, result_t& result, unsigned int* length=NULL);
/**
* Print the error position of the iterator to stdout.
* @param begin the iterator to the beginning of the items.
@@ -171,14 +183,14 @@ public:
* @param comment the field comment, or empty to use this fields comment.
* @param unit the value unit, or empty to use this fields unit (if applicable).
* @param partType the message part in which the field is stored.
* @param divisor the extra divisor to apply on the value, or 1 for none (if applicable).
* @param divisor the extra divisor (negative for reciprocal) to apply on the value, or 1 for none (if applicable).
* @param values the value=text assignments, or empty to use this fields assignments (if applicable).
* @param fields the @a vector to which created @a SingleDataField instances shall be added.
* @return @a RESULT_OK on success, or an error code.
*/
virtual result_t derive(string name, string comment,
string unit, const PartType partType,
unsigned int divisor, map<unsigned int, string> values,
int divisor, map<unsigned int, string> values,
vector<SingleDataField*>& fields) = 0;
/**
@@ -383,7 +395,7 @@ public:
// @copydoc
virtual result_t derive(string name, string comment,
string unit, const PartType partType,
unsigned int divisor, map<unsigned int, string> values,
int divisor, map<unsigned int, string> values,
vector<SingleDataField*>& fields);
// @copydoc
@@ -480,12 +492,12 @@ public:
* @param partType the message part in which the field is stored.
* @param length the number of symbols in the message part in which the field is stored.
* @param bitCount the number of bits in the binary value (may be less than @a length * 8).
* @param divisor the extra divisor to apply on the value, or 1 for none.
* @param divisor the extra divisor (negative for reciprocal) to apply on the value, or 1 for none.
*/
NumberDataField(const string name, const string comment,
const string unit, const dataType_t dataType, const PartType partType,
const unsigned char length, const unsigned char bitCount,
const unsigned int divisor);
const int divisor);
/**
* Destructor.
@@ -495,7 +507,7 @@ public:
// @copydoc
virtual result_t derive(string name, string comment,
string unit, const PartType partType,
unsigned int divisor, map<unsigned int, string> values,
int divisor, map<unsigned int, string> values,
vector<SingleDataField*>& fields);
// @copydoc
@@ -511,8 +523,8 @@ protected:
private:
/** the combined divisor to apply on the value, or 1 for none. */
const unsigned int m_divisor;
/** the combined divisor (negative for reciprocal) to apply on the value, or 1 for none. */
const int m_divisor;
/** the precision for formatting the value. */
unsigned char m_precision;
@@ -553,7 +565,7 @@ public:
// @copydoc
virtual result_t derive(string name, string comment,
string unit, const PartType partType, unsigned int divisor,
string unit, const PartType partType, int divisor,
map<unsigned int, string> values,
vector<SingleDataField*>& fields);
@@ -611,7 +623,7 @@ public:
// @copydoc
virtual result_t derive(string name, string comment,
string unit, const PartType partType,
unsigned int divisor, map<unsigned int, string> values,
int divisor, map<unsigned int, string> values,
vector<SingleDataField*>& fields);
/**