#define SQL_TEXT Unicode_Text
#include "sqltypes_td.h"
#include <string.h>
#define buffer_size 32000
void clobdecompress(LOB_LOCATOR* sourceLobLoc,
LOB_RESULT_LOCATOR* resultLobLoc,
char sqlstate[6] )
{
BYTE inputBuffer[buffer_size];
BYTE outputBuffer[buffer_size*2];
LOB_CONTEXT_ID id;
FNC_LobLength_t readlen, writelen;
int trunc_err = 0;
readlen=0;
writelen=0;
FNC_LobOpen(*sourceLobLoc, &id, 0, 0);
while( FNC_LobRead(id, inputBuffer, buffer_size, &readlen) == 0 && !trunc_err )
{
int i=0;
BYTE *inputPtr = inputBuffer;
BYTE *outputPtr = outputBuffer;
memset(outputBuffer,0,(buffer_size*2));
for (i=0; i<readlen; i++)
{
memcpy(outputPtr,inputPtr,sizeof(BYTE));
inputPtr += sizeof(BYTE);
outputPtr += sizeof(BYTE)*2;
}
trunc_err = FNC_LobAppend(*resultLobLoc, outputBuffer, readlen*2, &writelen);
/* check trunc_err and properly report an error (performed in the same way as for
a standard UDF) */
}
FNC_LobClose(id);
}