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Shuttles have air again. (#27884)

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This commit is contained in:
Charlie Nolan
2025-01-08 03:53:38 +00:00
committed by GitHub
parent e1c0c06441
commit ace1c170f9
2 changed files with 18 additions and 5 deletions
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code/controllers/subsystem/SSair.dm
+15 -2
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@@ -85,6 +85,9 @@ SUBSYSTEM_DEF(air)
/// Are we currently running in a MILLA-safe context, i.e. is is_synchronous *guaranteed* to be TRUE. Nothing outside of this file should change this.
VAR_PRIVATE/in_milla_safe_code = FALSE
/// Are we in MILLA-safe code that can safely sleep?
VAR_PRIVATE/safe_to_sleep = FALSE
/// A list of callbacks waiting for MILLA to finish its tick and enter synchronous mode.
var/list/waiting_for_sync = list()
var/list/sleepable_waiting_for_sync = list()
@@ -724,16 +727,24 @@ SUBSYSTEM_DEF(air)
waiting_for_sync += CB
/// Similar to addtimer, but triggers once MILLA enters synchronous mode. This version allows for sleeping if it's absolutely necessary.
/datum/controller/subsystem/air/proc/sleepable_synchronize(datum/milla_safe/CB)
/datum/controller/subsystem/air/proc/sleepable_synchronize(datum/milla_safe_must_sleep/CB)
if(safe_to_sleep)
var/was_safe = SSair.in_milla_safe_code
SSair.in_milla_safe_code = TRUE
// This is one of two intended places to call this otherwise-unsafe proc.
CB.private_unsafe_invoke()
SSair.in_milla_safe_code = was_safe
return
sleepable_waiting_for_sync += CB
/datum/controller/subsystem/air/proc/is_in_milla_safe_code()
return in_milla_safe_code
/datum/controller/subsystem/air/proc/on_milla_tick_finished()
run_sleepless_callbacks()
run_sleeping_callbacks()
is_synchronous = TRUE
run_sleepless_callbacks()
/datum/controller/subsystem/air/proc/run_sleepless_callbacks()
// Just in case someone is naughty and decides to sleep, make sure that this method runs fully anyway.
@@ -748,11 +759,13 @@ SUBSYSTEM_DEF(air)
/datum/controller/subsystem/air/proc/run_sleeping_callbacks()
in_milla_safe_code = TRUE
safe_to_sleep = TRUE
for(var/datum/milla_safe_must_sleep/CB as anything in sleepable_waiting_for_sync)
// This is one of two intended places to call this otherwise-unsafe proc.
CB.private_unsafe_invoke()
sleepable_waiting_for_sync.Cut()
in_milla_safe_code = FALSE
safe_to_sleep = FALSE
/proc/milla_tick_finished()
// Any proc that wants MILLA to be synchronous should not sleep.