mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-10 13:00:29 +03:00
b0e3f73375
Userspace programs can now open /dev/gui_events and read a stream of GUI_Event structs one at a time. I was stuck on a stupid problem where we'd reenter Scheduler::yield() due to having one of the has_data_available_for_reading() implementations using locks.
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
#pragma once
|
|
|
|
#include "DoubleBuffer.h"
|
|
#include <VirtualFileSystem/CharacterDevice.h>
|
|
#include <VirtualFileSystem/UnixTypes.h>
|
|
|
|
class Process;
|
|
|
|
class TTY : public CharacterDevice {
|
|
public:
|
|
virtual ~TTY() override;
|
|
|
|
virtual ssize_t read(byte*, size_t) override;
|
|
virtual ssize_t write(const byte*, size_t) override;
|
|
virtual bool has_data_available_for_reading(Process&) const override;
|
|
virtual int ioctl(Process&, unsigned request, unsigned arg) override final;
|
|
|
|
virtual String tty_name() const = 0;
|
|
|
|
unsigned short rows() const { return m_rows; }
|
|
unsigned short columns() const { return m_columns; }
|
|
|
|
void set_pgid(pid_t pgid) { m_pgid = pgid; }
|
|
pid_t pgid() const { return m_pgid; }
|
|
|
|
const Unix::termios& termios() const { return m_termios; }
|
|
void set_termios(const Unix::termios&);
|
|
bool should_generate_signals() const { return m_termios.c_lflag & ISIG; }
|
|
bool should_echo_input() const { return m_termios.c_lflag & ECHO; }
|
|
bool in_canonical_mode() const { return m_termios.c_lflag & ICANON; }
|
|
|
|
void set_default_termios();
|
|
|
|
protected:
|
|
virtual void on_tty_write(const byte*, size_t) = 0;
|
|
void set_size(unsigned short columns, unsigned short rows);
|
|
|
|
TTY(unsigned major, unsigned minor);
|
|
void emit(byte);
|
|
|
|
private:
|
|
// ^CharacterDevice
|
|
virtual bool is_tty() const final override { return true; }
|
|
|
|
void generate_signal(int signal);
|
|
|
|
DoubleBuffer m_buffer;
|
|
pid_t m_pgid { 0 };
|
|
Unix::termios m_termios;
|
|
unsigned short m_rows { 0 };
|
|
unsigned short m_columns { 0 };
|
|
};
|
|
|