ladybird/Kernel/SlavePTY.h
Andreas Kling beda478821 Kernel: Make syscalls that take a buffer size use ssize_t instead of size_t.
Dealing with the unsigned overflow propagation here just seems unreasonably
error prone. Let's limit ourselves to 2GB buffer sizes instead.
2019-02-25 21:21:12 +01:00

36 lines
994 B
C++

#pragma once
#include "TTY.h"
class MasterPTY;
class SlavePTY final : public TTY {
public:
virtual ~SlavePTY() override;
void on_master_write(const byte*, ssize_t);
unsigned index() const { return m_index; }
InodeIdentifier devpts_inode_id() const { return m_devpts_inode_id; }
void set_devpts_inode_id(InodeIdentifier inode_id) { m_devpts_inode_id = inode_id; }
private:
// ^TTY
virtual String tty_name() const override;
virtual ssize_t on_tty_write(const byte*, ssize_t) override;
// ^CharacterDevice
virtual bool can_read(Process&) const override;
virtual ssize_t read(Process&, byte*, ssize_t) override;
virtual bool can_write(Process&) const override;
virtual const char* class_name() const override { return "SlavePTY"; }
virtual void close() override;
friend class MasterPTY;
SlavePTY(MasterPTY&, unsigned index);
RetainPtr<MasterPTY> m_master;
unsigned m_index;
InodeIdentifier m_devpts_inode_id;
};