34 lines
655 B
C++
34 lines
655 B
C++
#pragma once
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#include <kernel/Interruptable.h>
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#include <kernel/Lock/SpinLock.h>
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#include <kernel/Timer/Timer.h>
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namespace Kernel
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{
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class PIT final : public Timer, public Interruptable
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{
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public:
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static BAN::ErrorOr<BAN::UniqPtr<PIT>> create();
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virtual uint64_t ms_since_boot() const override;
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virtual uint64_t ns_since_boot() const override;
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virtual timespec time_since_boot() const override;
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virtual void pre_scheduler_sleep_ns(uint64_t) override;
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virtual void handle_irq() override;
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private:
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void initialize();
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uint64_t read_counter_ns() const;
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private:
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mutable SpinLock m_lock;
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uint64_t m_system_time_ms { 0 };
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};
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}
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