[Info-vax] LLVM, volatile and async VMS I/O and system calls

[Lawrence D’Oliveiro]

On Friday, September 24, 2021 at 5:58:10 AM UTC+12, Simon Clubley wrote:
> Are you familiar with true asynchronous I/O in normal applications 
> where the operating system can write directly into your address space 
> without the program having to wait around in a system call to actually 
> receive that data and while the program is actually busy doing something 
> else at the same time?

We normally do that with threading or shared memory these days.