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Kernel: Reading from a slave PTY should give EOF if master PTY is closed.

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This commit is contained in:
Andreas Kling 2019-02-05 12:27:32 +01:00
parent 3accdb0e93
commit 378e20c535
5 changed files with 35 additions and 7 deletions
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15
Kernel/MasterPTY.h
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@ -11,24 +11,25 @@ public:
explicit MasterPTY(unsigned index);
virtual ~MasterPTY() override;
// ^CharacterDevice
virtual ssize_t read(Process&, byte*, size_t) override;
virtual ssize_t write(Process&, const byte*, size_t) override;
virtual bool can_read(Process&) const override;
virtual bool can_write(Process&) const override;
virtual bool is_master_pty() const override { return true; }
unsigned index() const { return m_index; }
String pts_name() const;
void on_slave_write(const byte*, size_t);
bool can_write_from_slave() const;
void notify_slave_closed(Badge<SlavePTY>);
bool is_closed() const { return m_closed; }
private:
// ^CharacterDevice
virtual ssize_t read(Process&, byte*, size_t) override;
virtual ssize_t write(Process&, const byte*, size_t) override;
virtual bool can_read(Process&) const override;
virtual bool can_write(Process&) const override;
virtual void close() override;
virtual bool is_master_pty() const override { return true; }
virtual const char* class_name() const override { return "MasterPTY"; }
RetainPtr<SlavePTY> m_slave;
unsigned m_index;
bool m_closed { false };
DoubleBuffer m_buffer;
};