Re: Question: Memory change request

2001-01-25 Thread Jamie Lokier
Leslie Donaldson wrote: > I need a block of memory that can notify me or even a flag set when > it has been written to. I was thinking of letting the user code generate > some sort of page fault... Any random thoughts would be greatly > appreciated. Look for the Boehm garbage collector. It has c

RE: Question: Memory change request

2001-01-24 Thread David Schwartz
> mprotect the page(s) you are interested in so you can't write to them > and catch SEGV -- when someone attempts to write you can pull apart > the stack frame mark the page(s) RO and continue. > > if you are really stuck i think i have example code to do this > somewhere for ia32 (stack frame i

Question: Memory change request

2001-01-23 Thread Leslie Donaldson
Hello, I realise this may be a little off topic but I think the kernel is the only place I will be able to pull this stunt. I need a block of memory that can notify me or even a flag set when it has been written to. I was thinking of letting the user code generate some sort of page fault... Any