To see why the "immediately" solution is not adequate: Step 1: Create a single linked list or a binary tree of a couple billion elements. Make sure there is only a single reference to the head element. Step 2: Release the pointer to the head Step 3: Twiddle your thumbs while your program is blocked since all elements needs to be immediately freed.
Alternative method: Moon instructs a student -- One day a student came to Moon and said: “I understand how to make a better garbage collector. We must keep a reference count of the pointers to each cons.” Moon patiently told the student the following story: “One day a student came to Moon and said: ‘I understand how to make a better garbage collector... On Thu, May 4, 2017 at 6:33 PM 'Axel Wagner' via golang-nuts < golang-nuts@googlegroups.com> wrote: > As so often is the question: Why? > > I don't believe this will ever be supported by gc; but if you think it's a > good idea, you can of course do it and see whether it actually solves your > problems (my prediction would be "there won't be a net change in problems", > but am ready to be proven wrong). > > On Thu, May 4, 2017 at 6:00 PM, T L <tapir....@gmail.com> wrote: > >> sometimes, I really want to some memory blocks be collected when they >> become unreferenced immediately.. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
