* Refactors connect_loc_behalf into a component (#60678)
See title. Also refactors caltrops into a component because they use connect_loc_behalf which requires them to hold the state.
This also fixes COMPONENT_DUPE_SELECTIVE from just outright not working.
connect_loc_behalf doesn't make sense as an element because it tries to hold states. There is also no way to maintain current behaviour and not have the states that it needs.
Due to the fact that it tries to hold states, it means the code itself is a lot more buggy because it's a lot harder to successfully manage these states without runtimes or bugs.
On metastation, there is only 2519 connect_loc_behalf components at roundstart. MrStonedOne has told me that datums take up this much space:
image
If we do the (oversimplified) math, there are only ever 5 variables that'll likely be changed on most connect_loc_behalf components at runtime:
connections,
tracked,
signal_atom,
parent,
signal_procs
This means that on metastation at roundstart, we take up this amount: (24 + 16 * 5) * 2519 = 261.97600 kilobytes
This is not really significant and the benefits of moving this to a component greatly outweighs the memory cost.
(Basically the memory cost is outweighed by the maint cost of tracking down issues with the thing. It's too buggy to be viable longterm basically)
* Update glass.dm
Co-authored-by: Watermelon914 <37270891+Watermelon914@users.noreply.github.com>
Co-authored-by: Gandalf <jzo123@hotmail.com>
* Reverts Entered() passing dir instead of old loc (#59910)
* Reverts Entered() passing dir instead of old loc
Co-authored-by: Rohesie <rohesie@gmail.com>
* Makes turfs persist their signals, uses this to optimize connect_loc (#59608)
* Makes turfs persist signals
* Splits connect_loc up into two elements, one for stuff that wishes to connect on behalf of something, and one for stuff that just wants to connect normally. Connecting on behalf of someone has a significant amount of overhead, so let's do this to keep things clear
* Converts all uses of connect_loc over to the new patterns
* Adds some comments, actually makes turfs persist signals
* There's no need to detach connect loc anymore, since all it does is unregister signals. Unregisters a signal from formorly decal'd turfs, and makes the changeturf signal persistance stuff actually work
* bro fuck documentation
* Changes from a var to a proc, prevents admemems and idiots
* Extra detail on why we do the copy post qdel
* Makes turfs persist their signals, uses this to optimize connect_loc
Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@users.noreply.github.com>
* (code bounty) refactors all uses of Crossed() and Uncrossed() into signals sent to loc, tracked by connect_loc
* WHEW THAT WAS EASY
* Update ammo.dm
Co-authored-by: Kylerace <kylerlumpkin1@gmail.com>
Co-authored-by: Gandalf <jzo123@hotmail.com>
* Adds SIGNAL_HANDLER and SIGNAL_HANDLER_DOES_SLEEP to prevent signal callbacks from blocking (#52761)
Adds SIGNAL_HANDLER, a macro that sets SHOULD_NOT_SLEEP(TRUE). This should ideally be required on all new signal callbacks.
Adds BLOCKING_SIGNAL_HANDLER, a macro that does nothing except symbolize "this is an older signal that didn't necessitate a code rewrite". It should not be allowed for new work.
This comes from discussion around #52735, which yields by calling input, and (though it sets the return type beforehand) will not properly return the flag to prevent attack from slapping.
To fix 60% of the yielding cases, WrapAdminProcCall no longer waits for another admin's proc call to finish. I'm not an admin, so I don't know how many behinds this has saved, but if this is problematic for admins I can just make it so that it lets you do it anyway. I'm not sure what the point of this babysitting was anyway.
Requested by @optimumtact.
Changelog
cl
admin: Calling a proc while another admin is calling one will no longer wait for the first to finish. You will simply just have to call it again.
/cl
* Adds SIGNAL_HANDLER and SIGNAL_HANDLER_DOES_SLEEP to prevent signal callbacks from blocking
Co-authored-by: Jared-Fogle <35135081+Jared-Fogle@users.noreply.github.com>
