• Psychological Cleanup (7/7) Sep 05 2017 I have a C callback that must call some functions declared in D.
• Kagamin (5/7) Sep 06 2017 Would work.
• user1234 (7/14) Sep 06 2017 1/ mark the D function as "extern(C)".
• Psychological Cleanup (3/18) Sep 06 2017 This wont work. The callback must be relatively performant and

Psychological Cleanup <Help Saving.World> writes:

I have a C callback that must call some functions declared in D. 
I can't call them off the C thread because it will result in a 
violation. What is a good way to dispatch the call to the main D 
program?

I'm thinking that I might have to create an extra thread that 
monitors for when a call needs to occur and does so. Doesn't seem 

Kagamin <spam here.lot> writes:

On Wednesday, 6 September 2017 at 05:57:18 UTC, Psychological 
Cleanup wrote:
 I'm thinking that I might have to create an extra thread that 
 monitors for when a call needs to occur and does so.

Would work.
If your code doesn't conflict with GC, it's fine to work in an 
unregistered thread.

user1234 <user1234 12.hu> writes:

On Wednesday, 6 September 2017 at 05:57:18 UTC, Psychological 
Cleanup wrote:
 I have a C callback that must call some functions declared in 
 D. I can't call them off the C thread because it will result in 
 a violation. What is a good way to dispatch the call to the 
 main D program?

 I'm thinking that I might have to create an extra thread that 
 monitors for when a call needs to occur and does so. Doesn't 


1/ mark the D function as "extern(C)".
2/ take care to how things are passed to the D functions, 
especially arrays.
3/ take care not to mutate memory created from the D side...i.e 
copy after the call.

Psychological Cleanup <Help Saving.World> writes:

On Wednesday, 6 September 2017 at 09:47:34 UTC, user1234 wrote:
 On Wednesday, 6 September 2017 at 05:57:18 UTC, Psychological 
 Cleanup wrote:
 I have a C callback that must call some functions declared in 
 D. I can't call them off the C thread because it will result 
 in a violation. What is a good way to dispatch the call to the 
 main D program?

 I'm thinking that I might have to create an extra thread that 
 monitors for when a call needs to occur and does so. Doesn't 


 1/ mark the D function as "extern(C)".
 2/ take care to how things are passed to the D functions, 
 especially arrays.
 3/ take care not to mutate memory created from the D side...i.e 
 copy after the call.

This wont work. The callback must be relatively performant and 
must access the D code on the D side normally.