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package runtime
Thread_Local_Cleaner_Odin :: #type proc "odin" ()
Thread_Local_Cleaner_Contextless :: #type proc "contextless" ()
Thread_Local_Cleaner :: union #shared_nil {Thread_Local_Cleaner_Odin, Thread_Local_Cleaner_Contextless}
@(private="file")
thread_local_cleaners: [8]Thread_Local_Cleaner
// Add a procedure that will be run at the end of a thread for the purpose of
// deallocating state marked as `thread_local`.
//
// Intended to be called in an `init` procedure of a package with
// dynamically-allocated memory that is stored in `thread_local` variables.
add_thread_local_cleaner :: proc "contextless" (p: Thread_Local_Cleaner) {
for &v in thread_local_cleaners {
if v == nil {
v = p
return
}
}
panic_contextless("There are no more thread-local cleaner slots available.")
}
// Run all of the thread-local cleaner procedures.
//
// Intended to be called by the internals of a threading API at the end of a
// thread's lifetime.
run_thread_local_cleaners :: proc "odin" () {
for p in thread_local_cleaners {
if p == nil {
break
}
switch v in p {
case Thread_Local_Cleaner_Odin: v()
case Thread_Local_Cleaner_Contextless: v()
}
}
}
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