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AK: Add Singleton special-case constructor for SpinlockProtected

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This will allow Singletons of that class to still be created when
SpinlockProtected can't be constructed without a lock rank argument
anymore.
This commit is contained in:
kleines Filmröllchen 2022-08-18 21:44:31 +02:00 committed by Brian Gianforcaro
parent f53aa5bfbb
commit 4809dc8ec2
Notes: sideshowbarker 2024-07-17 08:07:37 +09:00 
Author: https://github.com/kleinesfilmroellchen
Commit: https://github.com/SerenityOS/serenity/commit/4809dc8ec2
Pull-request: https://github.com/SerenityOS/serenity/pull/14914
Reviewed-by: https://github.com/bgianfo ✅
1 changed files with 13 additions and 0 deletions
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13
AK/Singleton.h
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@ -12,6 +12,7 @@
#ifdef KERNEL
# include <Kernel/Arch/Processor.h>
# include <Kernel/Arch/ScopedCritical.h>
# include <Kernel/Locking/SpinlockProtected.h>
#else
# include <sched.h>
#endif
@ -30,6 +31,18 @@ struct SingletonInstanceCreator {
}
};
#ifdef KERNEL
// FIXME: Find a nice way of injecting the lock rank into the singleton.
template<typename T>
struct SingletonInstanceCreator<Kernel::SpinlockProtected<T>> {
static Kernel::SpinlockProtected<T>* create()
{
return new Kernel::SpinlockProtected<T> { Kernel::LockRank::None };
}
};
#endif
template<typename T, T* (*InitFunction)() = SingletonInstanceCreator<T>::create>
class Singleton {
AK_MAKE_NONCOPYABLE(Singleton);