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Kernel: Replace TimerQueue InlinedLinkedList usage with IntrusiveList

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Note that there are a few minor differences between the InlineLinekdList
and IntrusiveList API, so this isn't just a pure data structure change.

 - first()/last() instead of head()/tail()

 - There is no need for a for_each(..) implementation, as it already
   exposes the ability to do range based for loops.
This commit is contained in:
Brian Gianforcaro 2021-06-15 02:44:09 -07:00 • committed by Andreas Kling
parent b4aaa99968
commit 2b819ff181
2 changed files with 59 additions and 54 deletions
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16
Kernel/TimerQueue.h
View file

@ -7,7 +7,7 @@
#pragma once
#include <AK/Function.h>
#include <AK/InlineLinkedList.h>
#include <AK/IntrusiveList.h>
#include <AK/NonnullRefPtr.h>
#include <AK/OwnPtr.h>
#include <AK/RefCounted.h>
@ -18,10 +18,8 @@ namespace Kernel {
TYPEDEF_DISTINCT_ORDERED_ID(u64, TimerId);
class Timer : public RefCounted<Timer>
, public InlineLinkedListNode<Timer> {
class Timer : public RefCounted<Timer> {
friend class TimerQueue;
friend class InlineLinkedListNode<Timer>;
public:
void setup(clockid_t clock_id, Time expires, Function<void()>&& callback)
@ -45,8 +43,6 @@ private:
Time m_expires;
Time m_remaining {};
Function<void()> m_callback;
Timer* m_next { nullptr };
Timer* m_prev { nullptr };
Atomic<bool, AK::MemoryOrder::memory_order_relaxed> m_queued { false };
bool operator<(const Timer& rhs) const
@ -64,6 +60,10 @@ private:
bool is_queued() const { return m_queued; }
void set_queued(bool queued) { m_queued = queued; }
Time now(bool) const;
public:
IntrusiveListNode<Timer> m_list_node;
using List = IntrusiveList<Timer, RawPtr<Timer>, &Timer::m_list_node>;
};
class TimerQueue {
@ -86,7 +86,7 @@ public:
private:
struct Queue {
InlineLinkedList<Timer> list;
Timer::List list;
Time next_timer_due {};
};
void remove_timer_locked(Queue&, Timer&);
@ -112,7 +112,7 @@ private:
u64 m_ticks_per_second { 0 };
Queue m_timer_queue_monotonic;
Queue m_timer_queue_realtime;
InlineLinkedList<Timer> m_timers_executing;
Timer::List m_timers_executing;
};
}