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https://github.com/SerenityOS/serenity
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2b4374d08e
This ownership model is a bit confusing. There's a retain cycle between MasterPTY and SlavePTY, but it's broken when the SlavePTY is closed, meaning that there are no more FileDescriptors referring to it.
35 lines
876 B
C++
35 lines
876 B
C++
#pragma once
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#include "TTY.h"
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class MasterPTY;
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class SlavePTY final : public TTY {
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public:
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virtual ~SlavePTY() override;
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void on_master_write(const byte*, size_t);
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unsigned index() const { return m_index; }
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InodeIdentifier devpts_inode_id() const { return m_devpts_inode_id; }
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void set_devpts_inode_id(InodeIdentifier inode_id) { m_devpts_inode_id = inode_id; }
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private:
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// ^TTY
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virtual String tty_name() const override;
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virtual void on_tty_write(const byte*, size_t) override;
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// ^CharacterDevice
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virtual bool can_write(Process&) const override;
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virtual const char* class_name() const override { return "SlavePTY"; }
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virtual void close() override;
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friend class MasterPTY;
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SlavePTY(MasterPTY&, unsigned index);
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RetainPtr<MasterPTY> m_master;
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unsigned m_index;
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InodeIdentifier m_devpts_inode_id;
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};
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