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Remove unnecessary interactor_announce() calls.

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In interactor_return_seat, I wrote a comment saying that we should
call interactor_announce when handing over to the next Interactor in
the chain, *if* any Interactor had already made any kind of
announcement.

But, having written that comment, I didn't actually *implement* the
'if' clause, and called interactor_announce unconditionally! Now
fixed.
This commit is contained in:
Simon Tatham 2021-11-06 11:32:51 +00:00
parent 1811f51b94
commit 1fd27e649a
1 changed files with 25 additions and 13 deletions
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38
proxy/interactor.c
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@ -21,6 +21,26 @@ Seat *interactor_borrow_seat(Interactor *itr)
return clientseat;
}
static Interactor *interactor_toplevel(Interactor *itr, unsigned *level_out)
{
/*
* Find the Interactor at the top of the chain, so that all the
* Interactors in a stack can share that one's last-to-talk field.
* Also, count how far we had to go to get to it, to put in the
* message.
*/
Interactor *itr_top = itr;
unsigned level = 0;
while (itr_top->parent) {
itr_top = itr_top->parent;
level++;
}
if (level_out)
*level_out = level;
return itr_top;
}
void interactor_return_seat(Interactor *itr)
{
Seat *tempseat = interactor_get_seat(itr);
@ -37,7 +57,9 @@ void interactor_return_seat(Interactor *itr)
* interactor_announce, then all Interactors from now on will
* announce themselves even if they have nothing to say.
*/
interactor_announce(itr);
Interactor *itr_top = interactor_toplevel(itr, NULL);
if (itr_top->last_to_talk)
interactor_announce(itr);
/*
* We're about to hand this seat back to the parent Interactor to
@ -57,18 +79,8 @@ InteractionReadySeat interactor_announce(Interactor *itr)
InteractionReadySeat iseat;
iseat.seat = seat;
/*
* Find the Interactor at the top of the chain, so that all the
* Interactors in a stack can share that one's last-to-talk field.
* Also, count how far we had to go to get to it, to put in the
* message.
*/
Interactor *itr_top = itr;
unsigned level = 0;
while (itr_top->parent) {
itr_top = itr_top->parent;
level++;
}
unsigned level;
Interactor *itr_top = interactor_toplevel(itr, &level);
/*
* Generally, we should announce ourself if the previous