void GuardedMemory::print_on(outputStream* st) const {
if (_base_addr == NULL) {
st->print_cr("GuardedMemory(" PTR_FORMAT ") not associated to any memory", p2i(this));
return;
}
st->print_cr("GuardedMemory(" PTR_FORMAT ") base_addr=" PTR_FORMAT
" tag=" PTR_FORMAT " user_size=" SIZE_FORMAT " user_data=" PTR_FORMAT,
p2i(this), p2i(_base_addr), p2i(get_tag()), get_user_size(), p2i(get_user_ptr()));
Guard* guard = get_head_guard();
st->print_cr(" Header guard @" PTR_FORMAT " is %s", p2i(guard), (guard->verify() ? "OK" : "BROKEN"));
guard = get_tail_guard();
st->print_cr(" Trailer guard @" PTR_FORMAT " is %s", p2i(guard), (guard->verify() ? "OK" : "BROKEN"));
u_char udata = *get_user_ptr();
switch (udata) {
case uninitBlockPad:
st->print_cr(" User data appears unused");
break;
case freeBlockPad:
st->print_cr(" User data appears to have been freed");
break;
default:
st->print_cr(" User data appears to be in use");
break;
}
}
void set_user_bytes(u_char ch) {
memset(get_user_ptr(), ch, get_user_size());
}
Guard* get_tail_guard() const { return (Guard*) (get_user_ptr() + get_user_size()); };
