Thanks Andrej. That bug says that you can not alloc memory during GC. However i
don't alloc but free memory in ~this. But anyway, as you said, I should use
malloc/free in core.stdc.stdlib to manage memory manually. I modified the code
to
use that malloc/free, and it works without crashing.
However, the following little bit more complex test got a Bus error.
import core.stdc.stdlib;
class Allocator {
void* alloc(size_t size) {
return malloc(size);
}
void free(void *block) {
core.stdc.stdlib.free(block);
}
}
class Pages {
this(Allocator allocator) {
_allocator = allocator;
void *p = _allocator.alloc(1000);
_pages ~= p;
}
~this() {
_allocator.free(_pages[0]);// Bus error there
}
Allocator _allocator;
void*[] _pages;
size_t _a;
size_t _b;
size_t _c;
size_t _d;
size_t _e;
size_t _f;
}
void main() {
auto a = new Allocator();
auto pg = new Pages(a);
}
I got the following bus error:
Bus error: 10
What's the problem? Does it mean that I can not access _allocator during the
deconstruction of pg? And the most mythical thing is that if I comment out the
declaration of _a to _f of Pages, then the bus error will go.
(I use the most recent dmd 2.0.056.)
