creaImageIO_lib: CppSQLite3Binary Class Reference

#include <CppSQLite3.h>

Public Member Functions
	CppSQLite3Binary ()

	~CppSQLite3Binary ()

void	setBinary (const unsigned char *pBuf, int nLen)

void	setEncoded (const unsigned char *pBuf)

const unsigned char *	getEncoded ()

const unsigned char *	getBinary ()

int	getBinaryLength ()

unsigned char *	allocBuffer (int nLen)

void	clear ()

Private Attributes
unsigned char *	mpBuf

int	mnBinaryLen

int	mnBufferLen

int	mnEncodedLen

bool	mbEncoded

Detailed Description

Definition at line 169 of file CppSQLite3.h.

Constructor & Destructor Documentation

CppSQLite3Binary::CppSQLite3Binary ( )

Definition at line 353 of file CppSQLite3.cpp.

                                    :
 
                                                 mpBuf(0),
 
                                                 mnBinaryLen(0),
 
                                                 mnBufferLen(0),
 
                                                 mnEncodedLen(0),
 
                                                 mbEncoded(false)
 
 {
 
}

CppSQLite3Binary::~CppSQLite3Binary ( )

Definition at line 373 of file CppSQLite3.cpp.

References clear().

 {
 
         clear();
 
 }

Here is the call graph for this function:

Member Function Documentation

unsigned char * CppSQLite3Binary::allocBuffer ( int nLen )

Definition at line 527 of file CppSQLite3.cpp.

References clear(), CPPSQLITE_ERROR, DONT_DELETE_MSG, mbEncoded, mnBinaryLen, mnBufferLen, and mpBuf.

Referenced by setBinary().

 {
 
         clear();
 
         // Allow extra space for encoded binary as per comments in
 
         // SQLite encode.c See bottom of this file for implementation
 
         // of SQLite functions use 3 instead of 2 just to be sure ;-)
 
         mnBinaryLen = nLen;
 
         mnBufferLen = 3 + (257*nLen)/254;
 
         mpBuf = (unsigned char*)malloc(mnBufferLen);
 
         if (!mpBuf)
 
         {
 
                 throw CppSQLite3Exception(CPPSQLITE_ERROR,
 
                                                                 "Cannot allocate memory",
 
                                                                 DONT_DELETE_MSG);
 
         }
 
         mbEncoded = false;
 
         return mpBuf;
 
 }

Here is the call graph for this function:

Here is the caller graph for this function:

void CppSQLite3Binary::clear ( )

Definition at line 577 of file CppSQLite3.cpp.

References mnBinaryLen, mnBufferLen, and mpBuf.

Referenced by allocBuffer(), setEncoded(), and ~CppSQLite3Binary().

 {
 
         if (mpBuf)
 
         {
 
                 mnBinaryLen = 0;
 
                 mnBufferLen = 0;
 
                 free(mpBuf);
 
                 mpBuf = 0;
 
         }
 
 }

Here is the caller graph for this function:

const unsigned char * CppSQLite3Binary::getBinary ( )

Definition at line 471 of file CppSQLite3.cpp.

References CPPSQLITE_ERROR, DONT_DELETE_MSG, mbEncoded, mnBinaryLen, mpBuf, and sqlite3_decode_binary().

Referenced by getBinaryLength().

 {
 
         if (mbEncoded)
 
         {
 
                 // in/out buffers can be the same
 
                 mnBinaryLen = sqlite3_decode_binary(mpBuf, mpBuf);
 
                 if (mnBinaryLen == -1)
 
                 {
 
                         throw CppSQLite3Exception(CPPSQLITE_ERROR,
 
                                                                         "Cannot decode binary",
 
                                                                         DONT_DELETE_MSG);
 
                 }
 
                 mbEncoded = false;
 
         }
 
         return mpBuf;
 
 }

Here is the call graph for this function:

Here is the caller graph for this function:

int CppSQLite3Binary::getBinaryLength ( )

Definition at line 513 of file CppSQLite3.cpp.

References getBinary(), and mnBinaryLen.

 {
 
         getBinary();
 
         return mnBinaryLen;
 
 }

Here is the call graph for this function:

const unsigned char * CppSQLite3Binary::getEncoded ( )

Definition at line 441 of file CppSQLite3.cpp.

References mbEncoded, mnBinaryLen, mnEncodedLen, mpBuf, and sqlite3_encode_binary().

 {
 
         if (!mbEncoded)
 
         {
 
                 unsigned char* ptmp = (unsigned char*)malloc(mnBinaryLen);
 
                 memcpy(ptmp, mpBuf, mnBinaryLen);
 
                 mnEncodedLen = sqlite3_encode_binary(ptmp, mnBinaryLen, mpBuf);
 
                 free(ptmp);
 
                 mbEncoded = true;
 
         }
 
         return mpBuf;
 
 }

Here is the call graph for this function:

void CppSQLite3Binary::setBinary	(	const unsigned char *	pBuf,
		int	nLen
	)

Definition at line 385 of file CppSQLite3.cpp.

References allocBuffer(), and mpBuf.

 {
 
         mpBuf = allocBuffer(nLen);
 
         memcpy(mpBuf, pBuf, nLen);
 
 }

Here is the call graph for this function:

void CppSQLite3Binary::setEncoded ( const unsigned char * pBuf )

Definition at line 399 of file CppSQLite3.cpp.

References clear(), CPPSQLITE_ERROR, DONT_DELETE_MSG, mbEncoded, mnBufferLen, mnEncodedLen, and mpBuf.

 {
 
         clear();
 
         mnEncodedLen = strlen((const char*)pBuf);
 
         mnBufferLen = mnEncodedLen + 1; // Allow for NULL terminator
 
         mpBuf = (unsigned char*)malloc(mnBufferLen);
 
         if (!mpBuf)
 
         {
 
                 throw CppSQLite3Exception(CPPSQLITE_ERROR,
 
                                                                 "Cannot allocate memory",
 
                                                                 DONT_DELETE_MSG);
 
         }
 
         memcpy(mpBuf, pBuf, mnBufferLen);
 
         mbEncoded = true;
 
 }