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https://github.com/SerenityOS/serenity
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1b2ef8582c
Asking a File if we could possibly read or write it will never mutate the asking FileDescription&, so it should be const.
39 lines
1 KiB
C++
39 lines
1 KiB
C++
#pragma once
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#include <AK/Badge.h>
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#include <AK/CircularQueue.h>
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#include <AK/WeakPtr.h>
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#include <Kernel/FileSystem/File.h>
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class Inode;
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class InodeWatcher final : public File {
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public:
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static NonnullRefPtr<InodeWatcher> create(Inode&);
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virtual ~InodeWatcher() override;
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struct Event {
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enum class Type {
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Invalid = 0,
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Modified,
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};
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Type type { Type::Invalid };
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};
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virtual bool can_read(const FileDescription&) const override;
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virtual bool can_write(const FileDescription&) const override;
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virtual ssize_t read(FileDescription&, u8*, ssize_t) override;
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virtual ssize_t write(FileDescription&, const u8*, ssize_t) override;
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virtual String absolute_path(const FileDescription&) const override;
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virtual const char* class_name() const override { return "InodeWatcher"; };
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void notify_inode_event(Badge<Inode>, Event::Type);
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private:
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explicit InodeWatcher(Inode&);
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WeakPtr<Inode> m_inode;
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CircularQueue<Event, 32> m_queue;
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};
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