Best practices for multithread global flags

[rikki cattermole]

On 15/11/2017 11:57 AM, Vladimirs Nordholm wrote:
> Hello people from D-land.
> 
> To summarise my problem: I have a program in the terminal (Posix) with 
> two threads: one which my main program is run on, and a second one which 
> polls input via `poll(...)` and `read(...)`.
> 
> Let's call main thread T1, and a semi-blocking input-thread T2.
> 
> Every second T2 checks if T1 is terminated by checking if the a global 
> flag is set to true. This is done with a `while(global_flag)`.
> 
> This feels to me like iffy code. So my question becomes: what is the 
> best way to do this check with?

You're fine, a __gshared variable will do this nicely.