/*******************************************************************************
* BBuffer.c Buffer Class
* T.Barnaby, BEAM Ltd, 27/2/94
*******************************************************************************
*/
#include <stdlib.h>
#include <memory.h>
#include <BBuffer.h>
#define SIZE 1024
BBuffer::BBuffer(){
osize = 0;
odatasize = SIZE;
odata = malloc(odatasize);
}
BBuffer::~BBuffer(){
free(odata);
}
uint32_t BBuffer::size(){
return osize;
}
int BBuffer::setSize(uint32_t size){
uint32_t asize;
asize = size;
if(asize < SIZE)
asize = SIZE;
if(asize != odatasize){
if((odata = realloc(odata, asize)) == 0){
return 1;
}
odatasize = asize;
}
osize = size;
return 0;
}
void* BBuffer::data(){
return odata;
}
int BBuffer::setData(const void* data, uint32_t size){
if(!setSize(size)){
memcpy(odata, data, size);
return 0;
}
else {
return 1;
}
}
int BBuffer::writeData(uint32_t pos, const void* data, uint32_t size){
if(odata && ((pos + size) <= osize)){
memcpy((char*)odata + pos, data, size);
return 0;
}
else {
return 1;
}
}
