C API: Query regarding Speech Dispatcher Callbacks and State Management

[Day Garwood]

Hi there,

I'm facing a challenge while interfacing with Speech Dispatcher and 
would appreciate any insights or recommendations.

I need to maintain a certain state across callbacks from Speech 
Dispatcher. My state is stored in a struct that I usually pass around to 
all my functions, but from what I can gather, the current callback 
mechanism doesn't allow for sending user data or context. As a result, 
when the callback gets triggered, I lack a direct method to access or 
modify the associated state.

I have looked at the documentation, and even skimmed some of the 
relevant source files, but can't seem to find out if user data can be 
stored anywhere else (the connection, for instance).

I am looking for a way to accomplish this without the use of global 
variables. The only other way I can think of is using files, environment 
variables, or shared memory, but given the nature of the project this 
presents challenges of its own and causes unnecessary overhead.

Is there a known or recommended way to maintain state with the current 
Speech Dispatcher callback mechanism?
Have other developers encountered similar issues, and if so, how did 
they address them?

Are there discussions or plans to enhance the callback system to support 
user context or provide a method to access state?

I believe there's much I can learn from the collective experience of the 
community, and any guidance you can provide will be greatly appreciated.

Look forward to hearing from you.

All the best.

Day Garwood.