512 linhas
21 KiB
C
512 linhas
21 KiB
C
#ifndef cmData_h
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#define cmData_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum
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{
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kOkDtRC = cmOkRC,
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kCvtErrDtRC,
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kVarArgErrDtRC,
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kEolDtRC
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};
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enum
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{
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kInvalidDtChar = 0xff,
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kInvalidDtUChar = 0xff,
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kInvalidDtShort = 0xffff,
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kInvalidDtUShort = 0xffff,
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kInvalidDtInt = 0xffffffff,
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kInvalidDtUInt = 0xffffffff,
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kInvalidDtLong = 0xffffffff,
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kInvalidDtULong = 0xffffffff,
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};
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typedef enum
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{
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kInvalidDtId,
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kMinValDtId,
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kNullDtId = kMinValDtId,
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kUCharDtId,
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kCharDtId,
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kUShortDtId,
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kShortDtId,
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kUIntDtId,
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kIntDtId,
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kULongDtId,
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kLongDtId,
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kFloatDtId,
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kDoubleDtId,
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kStrDtId,
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kConstStrDtId,
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kMaxValDtId = kConstStrDtId,
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kMinPtrDtId,
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kUCharPtrDtId = kMinPtrDtId, // cnt=array element count
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kCharPtrDtId,
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kUShortPtrDtId,
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kShortPtrDtId,
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kUIntPtrDtId,
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kIntPtrDtId,
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kULongPtrDtId,
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kLongPtrDtId,
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kFloatPtrDtId,
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kDoublePtrDtId,
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kVoidPtrDtId,
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kMaxPtrDtId = kVoidPtrDtId,
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kMinStructDtId,
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kListDtId = kMinStructDtId, // children nodes are array elements, cnt=child count
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kPairDtId, // key/value pairs, cnt=2, first child is key, second is value
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kRecordDtId, // children nodes are pairs, cnt=pair count
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kMaxStructDtId
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} cmDataFmtId_t;
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enum
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{
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kDynObjDtFl = 0x01, // object was dynamically allocated
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kDynPtrDtFl = 0x02 // ptr array was dynamically allocated
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};
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typedef struct cmData_str
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{
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cmDataFmtId_t tid; // data format id
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unsigned flags; //
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struct cmData_str* parent; // this childs parent
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struct cmData_str* sibling; // this childs left sibling
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unsigned cnt; // array ele count
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union
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{
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char c;
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unsigned char uc;
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short s;
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unsigned short us;
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int i;
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unsigned int ui;
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long l;
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unsigned long ul;
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float f;
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double d;
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cmChar_t* z;
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const cmChar_t* cz;
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void* vp;
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char* cp;
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unsigned char* ucp;
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short* sp;
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unsigned short* usp;
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int* ip;
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unsigned int* uip;
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long* lp;
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unsigned long* ulp;
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float* fp;
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double* dp;
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struct cmData_str* child; // first child (array,record,pair)
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} u;
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} cmData_t;
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typedef unsigned cmDtRC_t;
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extern cmData_t cmDataNull;
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bool cmDataIsValue( const cmData_t* p );
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bool cmDataIsPtr( const cmData_t* p );
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bool cmDataIsStruct( const cmData_t* p );
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/*
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TODO:
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0) Figure out a error handling scheme that does not rely on
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a global errno. This is not useful in multi-thread environments.
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It might be ok to go with an 'all errors are fatal' model
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(except in the var-args functions).
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Consider the use of a context object for use with functions
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that can have runtime errors or need to allocate memory.
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1) Implement the canConvert and willTruncate functions.
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2) Make a set of cmDataAllocXXXPtr() functions which take
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a flag indicating whether or not to dynamically allocate
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the array space. This will allow dynamic allocattion to
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occur at runtime. Make var args functions for list and
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record objects which also take this flag.
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Where ever a function may be implemented using
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static/dynamic allocation this flag should be present.
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(e.g. string allocation for pair labels)
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This choice is common enough that it may be worth
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suffixing function names with a capital letter to
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be clear what the functions memory policy is.
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3) Come up with a var-args format which allows a
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hierchy of records to be defined in one line.
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4) Implement the serialization functions.
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5) Implement an ascii string/parse format for writing/reading.
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6) Implement fast lookup of record fields.
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7) Allow for user defined types. For example a 'matrix'
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data type. This might be as simple as adding an extra 'user_tid'
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field to cmData_t.
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8) Implement type specific cmDataGetRecordValueXXX() functions.
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9) Implement cmDataIsEqual(), cmDataIsLtE(), ...
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*/
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bool canConvertType( cmDataFmtId_t srcId, cmDataFmtId_t dstId );
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bool willTruncate( cmDataFmtId_t srcId, cmDataFmtId_t dstId );
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bool canConvertObj( const cmData_t* srcObj, cmData_t* dstObj );
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bool willTruncateObj(const cmData_t* srcObj, cmData_t* dstObj );
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// Get the value of an object without conversion.
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// The data type id must match the return type or the
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// conversion must be an automatic C conversion.
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char cmDataChar( const cmData_t* p );
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unsigned char cmDataUChar( const cmData_t* p );
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short cmDataShort( const cmData_t* p );
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unsigned short cmDataUShort( const cmData_t* p );
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int cmDataInt( const cmData_t* p );
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unsigned int cmDataUInt( const cmData_t* p );
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long cmDataLong( const cmData_t* p );
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unsigned long cmDataULong( const cmData_t* p );
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float cmDataFloat( const cmData_t* p );
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double cmDataDouble( const cmData_t* p );
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cmChar_t* cmDataStr( const cmData_t* p );
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const cmChar_t* cmDataConstStr( const cmData_t* p );
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void* cmDataVoidPtr( const cmData_t* p );
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char* cmDataCharPtr( const cmData_t* p );
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unsigned char* cmDataUCharPtr( const cmData_t* p );
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short* cmDataShortPtr( const cmData_t* p );
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unsigned short* cmDataUShortPtr( const cmData_t* p );
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int* cmDataIntPtr( const cmData_t* p );
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unsigned int* cmDataUIntPtr( const cmData_t* p );
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long* cmDataLongPtr( const cmData_t* p );
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unsigned long* cmDataULongPtr( const cmData_t* p );
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float* cmDataFloatPtr( const cmData_t* p );
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double* cmDataDoublePtr( const cmData_t* p );
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// Get the value of an object with conversion.
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char cmDataGetChar( const cmData_t* p );
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unsigned char cmDataGetUChar( const cmData_t* p );
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short cmDataGetShort( const cmData_t* p );
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unsigned short cmDataGetUShort( const cmData_t* p );
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int cmDataGetInt( const cmData_t* p );
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unsigned int cmDataGetUInt( const cmData_t* p );
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long cmDataGetLong( const cmData_t* p );
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unsigned long cmDataGetULong( const cmData_t* p );
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float cmDataGetFloat( const cmData_t* p );
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double cmDataGetDouble( const cmData_t* p );
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cmChar_t* cmDataGetStr( const cmData_t* p );
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const cmChar_t* cmDataGetConstStr( const cmData_t* p );
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void* cmDataGetVoidPtr( const cmData_t* p );
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char* cmDataGetCharPtr( const cmData_t* p );
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unsigned char* cmDataGetUCharPtr( const cmData_t* p );
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short* cmDataGetShortPtr( const cmData_t* p );
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unsigned short* cmDataGetUShortPtr( const cmData_t* p );
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int* cmDataGetIntPtr( const cmData_t* p );
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unsigned int* cmDataGetUIntPtr( const cmData_t* p );
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long* cmDataGetLongPtr( const cmData_t* p );
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unsigned long* cmDataGetULongPtr( const cmData_t* p );
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float* cmDataGetFloatPtr( const cmData_t* p );
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double* cmDataGetDoublePtr( const cmData_t* p );
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// Set the value of an existing scalar data object.
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cmData_t* cmDataSetNull( cmData_t* p );
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cmData_t* cmDataSetChar( cmData_t* p, char v );
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cmData_t* cmDataSetUChar( cmData_t* p, unsigned char v );
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cmData_t* cmDataSetShort( cmData_t* p, short v );
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cmData_t* cmDataSetUShort( cmData_t* p, unsigned short v );
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cmData_t* cmDataSetInt( cmData_t* p, int v );
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cmData_t* cmDataSetUInt( cmData_t* p, unsigned int v );
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cmData_t* cmDataSetLong( cmData_t* p, long v );
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cmData_t* cmDataSetULong( cmData_t* p, unsigned long v );
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cmData_t* cmDataSetFloat( cmData_t* p, float v );
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cmData_t* cmDataSetDouble( cmData_t* p, double v );
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cmData_t* cmDataSetStr( cmData_t* p, cmChar_t* s );
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cmData_t* cmDataSetConstStr( cmData_t* p, const cmChar_t* s );
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// Set the value of an existing data object to an external array.
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// 'vp' is assigned as the data space for the object and therefore must remain
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// valid for the life of the object.
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cmData_t* cmDataSetVoidPtr( cmData_t* p, void* vp, unsigned cnt );
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cmData_t* cmDataSetCharPtr( cmData_t* p, char* vp, unsigned cnt );
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cmData_t* cmDataSetUCharPtr( cmData_t* p, unsigned char* vp, unsigned cnt );
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cmData_t* cmDataSetShortPtr( cmData_t* p, short* vp, unsigned cnt );
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cmData_t* cmDataSetUShortPtr( cmData_t* p, unsigned short* vp, unsigned cnt );
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cmData_t* cmDataSetIntPtr( cmData_t* p, int* vp, unsigned cnt );
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cmData_t* cmDataSetUIntPtr( cmData_t* p, unsigned int* vp, unsigned cnt );
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cmData_t* cmDataSetLongPtr( cmData_t* p, long* vp, unsigned cnt );
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cmData_t* cmDataSetULongPtr( cmData_t* p, unsigned long* vp, unsigned cnt );
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cmData_t* cmDataSetFloatPtr( cmData_t* p, float* vp, unsigned cnt );
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cmData_t* cmDataSetDoublePtr( cmData_t* p, double* vp, unsigned cnt );
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// Set the value of an existing array based data object.
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// Dynamically allocate the internal array and copy the array data into it.
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cmData_t* cmDataSetStrAlloc( cmData_t* p, const cmChar_t* s );
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cmData_t* cmDataSetConstStrAlloc( cmData_t* p, const cmChar_t* s );
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cmData_t* cmDataSetVoidAllocPtr( cmData_t* p, const void* vp, unsigned cnt );
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cmData_t* cmDataSetCharAllocPtr( cmData_t* p, const char* vp, unsigned cnt );
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cmData_t* cmDataSetUCharAllocPtr( cmData_t* p, const unsigned char* vp, unsigned cnt );
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cmData_t* cmDataSetShortAllocPtr( cmData_t* p, const short* vp, unsigned cnt );
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cmData_t* cmDataSetUShortAllocPtr( cmData_t* p, const unsigned short* vp, unsigned cnt );
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cmData_t* cmDataSetIntAllocPtr( cmData_t* p, const int* vp, unsigned cnt );
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cmData_t* cmDataSetUIntAllocPtr( cmData_t* p, const unsigned int* vp, unsigned cnt );
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cmData_t* cmDataSetLongAllocPtr( cmData_t* p, const long* vp, unsigned cnt );
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cmData_t* cmDataSetULongAllocPtr( cmData_t* p, const unsigned long* vp, unsigned cnt );
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cmData_t* cmDataSetFloatAllocPtr( cmData_t* p, const float* vp, unsigned cnt );
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cmData_t* cmDataSetDoubleAllocPtr( cmData_t* p, const double* vp, unsigned cnt );
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// Dynamically allocate a data object and set it's value.
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cmData_t* cmDataAllocNull( cmData_t* parent );
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cmData_t* cmDataAllocChar( cmData_t* parent, char v );
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cmData_t* cmDataAllocUChar( cmData_t* parent, unsigned char v );
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cmData_t* cmDataAllocShort( cmData_t* parent, short v );
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cmData_t* cmDataAllocUShort( cmData_t* parent, unsigned short v );
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cmData_t* cmDataAllocInt( cmData_t* parent, int v );
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cmData_t* cmDataAllocUInt( cmData_t* parent, unsigned int v );
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cmData_t* cmDataAllocLong( cmData_t* parent, long v );
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cmData_t* cmDataAllocULong( cmData_t* parent, unsigned long v );
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cmData_t* cmDataAllocFloat( cmData_t* parent, float v );
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cmData_t* cmDataAllocDouble( cmData_t* parent, double v );
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// Dynamically allocate a data object and set its array value to an external
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// array. v[cnt] is assigned as the internal data space for the object and
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// therefore must remain valid for the life of the object.
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// See the cmDataXXXAlocPtr() for equivalent functions which dynamically
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// allocate the intenal data space.
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cmData_t* cmDataAllocStr( cmData_t* parent, cmChar_t* str );
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cmData_t* cmDataAllocConstStr( cmData_t* parent, const cmChar_t* str );
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cmData_t* cmDataAllocCharPtr( cmData_t* parent, char* v, unsigned cnt );
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cmData_t* cmDataAllocUCharPtr( cmData_t* parent, unsigned char* v, unsigned cnt );
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cmData_t* cmDataAllocShortPtr( cmData_t* parent, short* v, unsigned cnt );
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cmData_t* cmDataAllocUShortPtr( cmData_t* parent, unsigned short* v, unsigned cnt );
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cmData_t* cmDataAllocIntPtr( cmData_t* parent, int* v, unsigned cnt );
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cmData_t* cmDataAllocUIntPtr( cmData_t* parent, unsigned int* v, unsigned cnt );
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cmData_t* cmDataAllocLongPtr( cmData_t* parent, long* v, unsigned cnt );
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cmData_t* cmDataAllocULongPtr( cmData_t* parent, unsigned long* v, unsigned cnt );
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cmData_t* cmDataAllocFloatPtr( cmData_t* parent, float* v, unsigned cnt );
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cmData_t* cmDataAllocDoublePtr( cmData_t* parent, double* v, unsigned cnt );
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cmData_t* cmDataAllocVoidPtr( cmData_t* parent, void* v, unsigned cnt );
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// Dynamically allocate a data object and its array value.
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// These functions dynamically allocate the internal array data space
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// and copy v[cnt] into it.
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cmData_t* cmDataStrAlloc( cmData_t* parent, cmChar_t* str );
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cmData_t* cmDataConstStrAlloc( cmData_t* parent, const cmChar_t* str );
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cmData_t* cmDataCharAllocPtr( cmData_t* parent, const char* v, unsigned cnt );
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cmData_t* cmDataUCharAllocPtr( cmData_t* parent, const unsigned char* v, unsigned cnt );
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cmData_t* cmDataShortAllocPtr( cmData_t* parent, const short* v, unsigned cnt );
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cmData_t* cmDataUShortAllocPtr( cmData_t* parent, const unsigned short* v, unsigned cnt );
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cmData_t* cmDataIntAllocPtr( cmData_t* parent, const int* v, unsigned cnt );
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cmData_t* cmDataUIntAllocPtr( cmData_t* parent, const unsigned int* v, unsigned cnt );
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cmData_t* cmDataLongAllocPtr( cmData_t* parent, const long* v, unsigned cnt );
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cmData_t* cmDataULongAllocPtr( cmData_t* parent, const unsigned long* v, unsigned cnt );
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cmData_t* cmDataFloatAllocPtr( cmData_t* parent, const float* v, unsigned cnt );
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cmData_t* cmDataDoubleAllocPtr( cmData_t* parent, const double* v, unsigned cnt );
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cmData_t* cmDataVoidAllocPtr( cmData_t* parent, const void* v, unsigned cnt );
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//----------------------------------------------------------------------------
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// Structure related functions
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//
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// Release an object and any resources held by it.
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// Note the this function does not unlink the object
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// from it's parent. Use cmDataUnlinkAndFree()
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// to remove a object from it's parent list prior
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// to releasing it.
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void cmDataFree( cmData_t* p );
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// Unlink 'p' from its parents and siblings.
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// Asserts if parent is not a structure.
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// Returns 'p'.
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cmData_t* cmDataUnlink( cmData_t* p );
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// Wrapper function to cmDataUnlink() and cmDataFree().
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void cmDataUnlinkAndFree( cmData_t* p );
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// Replace the 'dst' node with the 'src' node and
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// return 'src'. This operation does not duplicate
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// 'src' it simply links in 'src' at the location of
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// 'dst' and then unlinks and free's 'dst'.
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cmData_t* cmDataReplace( cmData_t* dst, cmData_t* src );
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// Return the count of child nodes.
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// 1. Array nodes have one child per array element.
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// 2. List nodes have one child pair.
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// 3. Pair nodes have two children.
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// 4. Leaf nodes have 0 children.
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unsigned cmDataChildCount( const cmData_t* p );
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// Returns the ith child of 'p'.
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// Returns NULL if p has no children or index is invalid.
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cmData_t* cmDataChild( cmData_t* p, unsigned index );
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// Prepend 'p' to 'parents' child list.
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// The source node 'p' is not duplicated it is simply linked in.
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// Returns 'p'.
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cmData_t* cmDataPrependChild(cmData_t* parent, cmData_t* p );
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// Append 'p' to the end of 'parent' child list.
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// The source node 'p' is not duplicated it is simply linked in.
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// Returns 'p'.
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cmData_t* cmDataAppendChild( cmData_t* parent, cmData_t* p );
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// Insert 'p' at index. Index must be in the range:
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// 0 to cmDataChildCount(parent).
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// The source node 'p' is not duplicated it is simply linked in.
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// Returns 'p'.
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cmData_t* cmDataInsertChild( cmData_t* parent, unsigned index, cmData_t* p );
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//----------------------------------------------------------------------------
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// Pair related functions
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//
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// Get the key/value of a pair
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cmData_t* cmDataPairKey( cmData_t* p );
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unsigned cmDataPairKeyId( cmData_t* p );
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const cmChar_t* cmDataPairKeyLabel( cmData_t* p );
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cmData_t* cmDataPairValue( cmData_t* p );
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// Set the value of an existing pair node.
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// 'value' is not duplicated it is simply linked in place of the
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// previous pair value node. The previous pair value node is
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// unlinked and freed.
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// Returns 'p'.
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cmData_t* cmDataPairSetValue( cmData_t* p, cmData_t* value );
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// Set the key of an existing pair node.
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//
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// Returns 'p'.
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cmData_t* cmDataPairSetKey( cmData_t* p, cmData_t* key );
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cmData_t* cmDataPairSetKeyId( cmData_t* p, unsigned id );
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// The data space for the 'label' string is dynamically allocated.
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cmData_t* cmDataPairSetKeyLabel( cmData_t* p, const cmChar_t* label );
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cmData_t* cmDataMakePair( cmData_t* parent, cmData_t* p, cmData_t* key, cmData_t* value );
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// Dynamically allocate a pair node
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cmData_t* cmDataAllocPair( cmData_t* parent, const cmData_t* key, const cmData_t* value );
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cmData_t* cmDataAllocPairId( cmData_t* parent, unsigned keyId, cmData_t* value );
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// The data space for the 'label' string is dynamically allocated.
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cmData_t* cmDataAllocPairLabel( cmData_t* parent, const cmChar_t* label, cmData_t* value );
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//----------------------------------------------------------------------------
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// List related functions
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//
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// Return the count of ele's in the list.
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unsigned cmDataListCount( const cmData_t* p );
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// Return the ith element in the list.
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cmData_t* cmDataListEle( cmData_t* p, unsigned index );
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cmData_t* cmDataListMake( cmData_t* parent, cmData_t* p );
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cmData_t* cmDataListAlloc( cmData_t* parent);
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// Var-args fmt:
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// <typeId> <value> {<cnt>}
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// scalar types: <value> is literal,<cnt> is not included
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// null has no <value> or <cnt>
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// ptr types: <value> is pointer,<cnt> is element count
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// struct types: <value> is cmData_t, <cnt> is not included
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// Indicate the end of argument list by setting <typeId> to kInvalidDtId.
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// The memory for array based data types is dynamically allocated.
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cmData_t* cmDataListAllocV(cmData_t* parent, va_list vl );
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cmData_t* cmDataListAllocA(cmData_t* parent, ... );
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// Returns a ptr to 'ele'.
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cmData_t* cmDataListAppendEle( cmData_t* p, cmData_t* ele );
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cmDtRC_t cmDataListAppendV( cmData_t* p, va_list vl );
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cmDtRC_t cmDataListAppend( cmData_t* p, ... );
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// Return 'p'.
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cmData_t* cmDataListInsertEle( cmData_t* p, unsigned index, cmData_t* ele );
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cmData_t* cmDataListInsertEleN(cmData_t* p, unsigned index, cmData_t* ele[], unsigned n );
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cmData_t* cmDataListUnlink( cmData_t* p, unsigned index );
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cmData_t* cmDataListFree( cmData_t* p, unsigned index );
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//----------------------------------------------------------------------------
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// Record related functions
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//
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// Return count of pairs.
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unsigned cmDataRecdCount( const cmData_t* p );
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// Return the ith pair.
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cmData_t* cmDataRecdEle( cmData_t* p, unsigned index );
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// Return the ith value.
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cmData_t* cmDataRecdValueFromIndex( cmData_t* p, unsigned index );
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cmData_t* cmDataRecdValueFromId( cmData_t* p, unsigned id );
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cmData_t* cmDataRecdValueFromLabel( cmData_t* p, const cmChar_t* label );
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// Return the ith key
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cmData_t* cmDataRecdKey( cmData_t* p, unsigned index );
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unsigned cmDataRecdKeyId( cmData_t* p, unsigned index );
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const cmChar_t* cmDataRecdKeyLabel( cmData_t* p, unsigned index );
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cmData_t* cmRecdMake( cmData_t* parent, cmData_t* p );
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cmData_t* cmRecdAlloc( cmData_t* parent );
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cmData_t* cmRecdAppendPair( cmData_t* p, cmData_t* pair );
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// Var-args fmt:
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// <label|id> <typeId> <value> {<cnt>}
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// scalar types: <value> is literal,<cnt> is not included
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// null has no <value> or <cnt>
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// ptr types: <value> is pointer,<cnt> is element count
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// struct types: <value> is cmData_t, <cnt> is not included
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// Indicate the end of argument list by setting <typeId> to kInvalidDtId.
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// The memory for array based data types is dynamically allocated.
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cmData_t* cmDataRecdAllocLabelV( cmData_t* parent, va_list vl );
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cmData_t* cmDataRecdAllocLabelA( cmData_t* parent, ... );
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cmData_t* cmDataRecdAllocIdV( cmData_t* parent, va_list vl );
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cmData_t* cmDataRecdAllocIdA( cmData_t* parent, ... );
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unsigned cmDataSerializeByteCount( const cmData_t* p );
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cmDtRC_t cmDataSerialize( const cmData_t* p, void* buf, unsigned bufByteCnt );
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cmDtRC_t cmDataDeserialize( const void* buf, unsigned bufByteCnt, cmData_t** pp );
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void cmDataPrint( const cmData_t* p, cmRpt_t* rpt );
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void cmDataTest( cmCtx_t* ctx );
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#ifdef __cplusplus
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}
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#endif
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#endif
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