Boolean heap::insert(voidPtr elm)
{
if ( buf_sz() < content_sz() + 2*sizeof(voidPtr) )
buffer::expand_chunk(2*buf_sz()) ;
long x = long(elm);
buffer::put(x);
v_updated = true;
return true;
}
int buffer::expand_chunk(const int newsz)
{
if ( v_allocated == 0 )
throw(stringException("expand a buffer with reference memory"));
int cursz = buf_sz();
if ( newsz <= cursz ) {
v_bufsz = newsz;
return 0;
}
int void_ptr_size = sizeof(voidPtr);
//MESSAGE(cerr, "real expand");
//char* x = (char*)malloc(void_ptr_size+newsz);
char* x = ::new char [void_ptr_size+newsz];
int delta = int(void_ptr_size - long(x) % void_ptr_size);
x += delta ;
memcpy(x, v_base, cursz);
memset(x+cursz, char(0), newsz - cursz);
v_aptr -= long(v_base);
v_eptr -= long(v_base);
//free((char*)(v_base-v_align_offset));
delete (char*)(v_base-v_align_offset);
v_align_offset = delta;
v_base = x;
v_aptr += long(v_base);
v_eptr += long(v_base);
v_bufsz = newsz;
return 0;
}
void_ptr_array::void_ptr_array(int exp_sz) :
buffer(exp_sz * sizeof(voidPtr)), v_elmts(0)
{
memset(get_base(), (char)0, buf_sz());
}
