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47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
#pragma once
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#include <AK/AKString.h>
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#include <AK/Retainable.h>
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#include <AK/Retained.h>
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#include <AK/Types.h>
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#include <Kernel/KResult.h>
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#include <Kernel/LinearAddress.h>
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class FileDescriptor;
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class Process;
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class Region;
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class File : public Retainable<File> {
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public:
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virtual ~File();
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virtual KResultOr<Retained<FileDescriptor>> open(int options);
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virtual void close();
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virtual bool can_read(FileDescriptor&) const = 0;
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virtual bool can_write(FileDescriptor&) const = 0;
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virtual ssize_t read(FileDescriptor&, byte*, ssize_t) = 0;
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virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) = 0;
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virtual int ioctl(FileDescriptor&, unsigned request, unsigned arg);
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virtual KResultOr<Region*> mmap(Process&, LinearAddress preferred_laddr, size_t offset, size_t size);
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virtual String absolute_path(FileDescriptor&) const = 0;
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virtual const char* class_name() const = 0;
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virtual bool is_seekable() const { return false; }
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virtual bool is_shared_memory() const { return false; }
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virtual bool is_fifo() const { return false; }
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virtual bool is_device() const { return false; }
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virtual bool is_tty() const { return false; }
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virtual bool is_master_pty() const { return false; }
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virtual bool is_block_device() const { return false; }
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virtual bool is_character_device() const { return false; }
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virtual bool is_socket() const { return false; }
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protected:
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File();
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};
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