ladybird/Kernel/FileSystem/InodeFile.h
Andreas Kling 1b2ef8582c Kernel: Make File's can_read/can_write take a const FileDescription&
Asking a File if we could possibly read or write it will never mutate
the asking FileDescription&, so it should be const.
2019-11-04 14:03:14 +01:00

39 lines
1.2 KiB
C++

#pragma once
#include <Kernel/FileSystem/File.h>
class Inode;
class InodeFile final : public File {
public:
static NonnullRefPtr<InodeFile> create(NonnullRefPtr<Inode>&& inode)
{
return adopt(*new InodeFile(move(inode)));
}
virtual ~InodeFile() override;
const Inode& inode() const { return *m_inode; }
Inode& inode() { return *m_inode; }
virtual bool can_read(const FileDescription&) const override { return true; }
virtual bool can_write(const FileDescription&) const override { return true; }
virtual ssize_t read(FileDescription&, u8*, ssize_t) override;
virtual ssize_t write(FileDescription&, const u8*, ssize_t) override;
virtual KResultOr<Region*> mmap(Process&, FileDescription&, VirtualAddress preferred_vaddr, size_t offset, size_t size, int prot) override;
virtual String absolute_path(const FileDescription&) const override;
virtual KResult truncate(off_t) override;
virtual const char* class_name() const override { return "InodeFile"; }
virtual bool is_seekable() const override { return true; }
virtual bool is_inode() const override { return true; }
private:
explicit InodeFile(NonnullRefPtr<Inode>&&);
NonnullRefPtr<Inode> m_inode;
};