forked from Bananymous/banan-os
Bananymous
bf0bd19289
Now modifying Scheduler.h or Thread.h doesnt trigger practically a full kernel rebuild. This required moving Mutex and RWLock of of line but that should be fine :^)
40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
#pragma once
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#include <kernel/FS/Inode.h>
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#include <kernel/Lock/Mutex.h>
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#include <kernel/ThreadBlocker.h>
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namespace Kernel
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{
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class EventFD final : public Inode
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{
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public:
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static BAN::ErrorOr<BAN::RefPtr<Inode>> create(uint64_t initval, bool semaphore);
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private:
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EventFD(uint64_t initval, bool is_semaphore);
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const FileSystem* filesystem() const override { return nullptr; }
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BAN::ErrorOr<void> sync_inode(SyncType) override { return {}; }
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BAN::ErrorOr<void> sync_data() override { return {}; }
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BAN::ErrorOr<size_t> read_impl(off_t, BAN::ByteSpan) override;
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BAN::ErrorOr<size_t> write_impl(off_t, BAN::ConstByteSpan) override;
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bool can_read_impl() const override { return m_value > 0; }
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bool can_write_impl() const override { return m_value < UINT64_MAX - 1; }
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bool has_error_impl() const override { return false; }
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bool has_hungup_impl() const override { return false; }
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private:
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const bool m_is_semaphore;
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BAN::Atomic<uint64_t> m_value;
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Mutex m_mutex;
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ThreadBlocker m_thread_blocker;
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};
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}
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