69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
#pragma once
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#include <BAN/CircularQueue.h>
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#include <BAN/HashMap.h>
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#include <BAN/HashSet.h>
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#include <kernel/FS/Inode.h>
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#include <sys/epoll.h>
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namespace Kernel
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{
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class Epoll final : public Inode
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{
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public:
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static BAN::ErrorOr<BAN::RefPtr<Epoll>> create();
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~Epoll();
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BAN::ErrorOr<void> ctl(int op, BAN::RefPtr<Inode> inode, epoll_event event);
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BAN::ErrorOr<size_t> wait(BAN::Span<epoll_event> events, uint64_t waketime_ns);
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void notify(BAN::RefPtr<Inode> inode, uint32_t event);
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private:
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Epoll() = default;
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public:
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ino_t ino() const override { return 0; }
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Mode mode() const override { return { Mode::IRUSR | Mode::IWUSR }; }
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nlink_t nlink() const override { return 0; }
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uid_t uid() const override { return 0; }
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gid_t gid() const override { return 0; }
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off_t size() const override { return 0; }
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timespec atime() const override { return {}; }
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timespec mtime() const override { return {}; }
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timespec ctime() const override { return {}; }
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blksize_t blksize() const override { return PAGE_SIZE; }
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blkcnt_t blocks() const override { return 0; }
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dev_t dev() const override { return 0; }
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dev_t rdev() const override { return 0; }
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bool is_epoll() const override { return true; }
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const FileSystem* filesystem() const override { return nullptr; }
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bool can_read_impl() const override { return false; }
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bool can_write_impl() const override { return false; }
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bool has_error_impl() const override { return false; }
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bool has_hangup_impl() const override { return false; }
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BAN::ErrorOr<void> fsync_impl() override { return {}; }
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private:
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struct InodeRefPtrHash
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{
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BAN::hash_t operator()(const BAN::RefPtr<Inode>& inode)
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{
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return BAN::hash<const Inode*>()(inode.ptr());
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}
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};
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private:
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ThreadBlocker m_thread_blocker;
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BAN::HashMap<BAN::RefPtr<Inode>, uint32_t, InodeRefPtrHash> m_ready_events;
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BAN::HashMap<BAN::RefPtr<Inode>, epoll_event, InodeRefPtrHash> m_listening_events;
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};
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}
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