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https://github.com/fergalmoran/ladybird.git
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799177feda
Currently you can only mmap the entire framebuffer. Using this when starting up the WindowServer gets us yet another step closer towards it moving into userspace. :^)
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
#pragma once
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#include <AK/Retainable.h>
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#include <AK/Types.h>
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#include "Limits.h"
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#include "FileDescriptor.h"
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class Process;
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class Device : public Retainable<Device> {
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public:
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virtual ~Device();
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InodeMetadata metadata() const { return { }; }
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virtual RetainPtr<FileDescriptor> open(int& error, int options);
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virtual void close();
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virtual bool can_read(Process&) const = 0;
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virtual bool can_write(Process&) const = 0;
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virtual ssize_t read(Process&, byte* buffer, size_t bufferSize) = 0;
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virtual ssize_t write(Process&, const byte* buffer, size_t bufferSize) = 0;
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unsigned major() const { return m_major; }
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unsigned minor() const { return m_minor; }
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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 int ioctl(Process&, unsigned request, unsigned arg);
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virtual const char* class_name() const = 0;
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uid_t uid() const { return m_uid; }
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uid_t gid() const { return m_gid; }
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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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protected:
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Device(unsigned major, unsigned minor) : m_major(major), m_minor(minor) { }
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void set_uid(uid_t uid) { m_uid = uid; }
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void set_gid(gid_t gid) { m_gid = gid; }
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private:
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unsigned m_major { 0 };
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unsigned m_minor { 0 };
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uid_t m_uid { 0 };
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gid_t m_gid { 0 };
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};
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