Tracing/Profiling D Applications

[Ali Çehreli]

On 5/25/22 14:35, Christian Köstlin wrote:

 > 1. I went for a singleton for storing tracing/logging information that
 > needs to be initialized manually. Is __gshared the right way to do that?

I think this is where thread-local storage comes in handy. As the D 
runtime does for dmd's -profile command line switch, you can have a 
module-level Appender, which collects data for that thread without 
worrying about race conditions.

 > to unlock the mutex?

You need the mutex only when each thread is exiting to combine their 
results. Each static ~this() could grab the mutex and add its result to 
the one global Appender. And that "global" Appender would be 'shared' or 
__gshared; doesn't matter.

Ali