/*******************************************************************************
* BRefData.cc Referenced data storage
* T.Barnaby, Beam Ltd, 6/10/94
*******************************************************************************
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <BRefData.h>
#define CHUNK 16
BRefData::BRefData(){
odata = 0;
olen = 0;
orefCount = 1;
}
BRefData::BRefData(int len){
odata = 0;
olen = 0;
orefCount = 1;
setLen(len);
}
BRefData::BRefData(const BRefData& refData){
olen = refData.olen;
odata = malloc(olen);
memcpy(odata, refData.odata, olen);
orefCount = 1;
}
BRefData& BRefData::operator=(const BRefData& refData){
free(odata);
olen = refData.olen;
odata = malloc(olen);
memcpy(odata, refData.odata, olen);
orefCount = 1;
return *this;
}
BRefData::~BRefData(){
free(odata);
odata = 0;
olen = 0;
orefCount = 0;
}
BRefData* BRefData::copy(){
BRefData* r = this;
if(++orefCount > 2){
r = new BRefData(*this);
orefCount.add(-2);
}
else {
orefCount--;
}
return r;
}
BRefData* BRefData::addRef(){
orefCount++;
return this;
}
int BRefData::deleteRef(){
return --orefCount;
}
void BRefData::setLen(int len){
olen = len;
odata = realloc(odata, olen);
}