mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-17 08:17:30 +03:00
649d2faeab
We had some inconsistencies before: - Sometimes "The", sometimes "the" - Sometimes trailing ".", sometimes no trailing "." I picked the most common one (lowecase "the", trailing ".") and applied it to all copyright headers. By using the exact same string everywhere we can ensure nothing gets missed during a global search (and replace), and that these inconsistencies are not spread any further (as copyright headers are commonly copied to new files).
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Atomic.h>
|
|
#include <AK/RefCounted.h>
|
|
#include <Kernel/SpinLock.h>
|
|
#include <Kernel/Thread.h>
|
|
#include <Kernel/VM/VMObject.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class FutexQueue : public Thread::BlockCondition
|
|
, public RefCounted<FutexQueue>
|
|
, public VMObjectDeletedHandler {
|
|
public:
|
|
FutexQueue(FlatPtr user_address_or_offset, VMObject* vmobject = nullptr);
|
|
virtual ~FutexQueue();
|
|
|
|
u32 wake_n_requeue(u32, const Function<FutexQueue*()>&, u32, bool&, bool&);
|
|
u32 wake_n(u32, const Optional<u32>&, bool&);
|
|
u32 wake_all(bool&);
|
|
|
|
template<class... Args>
|
|
Thread::BlockResult wait_on(const Thread::BlockTimeout& timeout, Args&&... args)
|
|
{
|
|
return Thread::current()->block<Thread::FutexBlocker>(timeout, *this, forward<Args>(args)...);
|
|
}
|
|
|
|
virtual void vmobject_deleted(VMObject&) override;
|
|
|
|
protected:
|
|
virtual bool should_add_blocker(Thread::Blocker& b, void* data) override;
|
|
|
|
private:
|
|
// For private futexes we just use the user space address.
|
|
// But for global futexes we use the offset into the VMObject
|
|
const FlatPtr m_user_address_or_offset;
|
|
WeakPtr<VMObject> m_vmobject;
|
|
const bool m_is_global;
|
|
};
|
|
|
|
}
|