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8bb18fdc56
This is no longer needed as the Kernel can stand on its own legs now and there won't be any conflict with host system data types.
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
#pragma once
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#include "DoubleBuffer.h"
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#include <Kernel/CharacterDevice.h>
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#include <Kernel/UnixTypes.h>
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class Process;
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class TTY : public CharacterDevice {
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public:
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virtual ~TTY() override;
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virtual ssize_t read(Process&, byte*, size_t) override;
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virtual ssize_t write(Process&, const byte*, size_t) override;
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virtual bool can_read(Process&) const override;
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virtual bool can_write(Process&) const override;
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virtual int ioctl(Process&, unsigned request, unsigned arg) override final;
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virtual String tty_name() const = 0;
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unsigned short rows() const { return m_rows; }
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unsigned short columns() const { return m_columns; }
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void set_pgid(pid_t pgid) { m_pgid = pgid; }
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pid_t pgid() const { return m_pgid; }
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void set_termios(const termios&);
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bool should_generate_signals() const { return m_termios.c_lflag & ISIG; }
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bool should_echo_input() const { return m_termios.c_lflag & ECHO; }
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bool in_canonical_mode() const { return m_termios.c_lflag & ICANON; }
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void set_default_termios();
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protected:
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virtual void on_tty_write(const byte*, size_t) = 0;
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void set_size(unsigned short columns, unsigned short rows);
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TTY(unsigned major, unsigned minor);
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void emit(byte);
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private:
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// ^CharacterDevice
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virtual bool is_tty() const final override { return true; }
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void generate_signal(int signal);
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DoubleBuffer m_buffer;
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pid_t m_pgid { 0 };
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termios m_termios;
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unsigned short m_rows { 0 };
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unsigned short m_columns { 0 };
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};
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