2020-01-18 11:38:21 +03:00
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/*
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2021-08-16 23:13:58 +03:00
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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2020-01-18 11:38:21 +03:00
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*
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2021-04-22 11:24:48 +03:00
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* SPDX-License-Identifier: BSD-2-Clause
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2020-01-18 11:38:21 +03:00
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*/
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2019-01-15 08:30:19 +03:00
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#pragma once
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2019-04-29 05:55:54 +03:00
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#include <Kernel/FileSystem/InodeIdentifier.h>
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2019-04-03 13:28:45 +03:00
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#include <Kernel/TTY/TTY.h>
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2019-01-15 08:30:19 +03:00
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2020-02-16 03:27:42 +03:00
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namespace Kernel {
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2019-01-15 08:30:19 +03:00
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class MasterPTY;
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class SlavePTY final : public TTY {
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public:
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2021-08-16 23:13:58 +03:00
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virtual bool unref() const override;
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2019-01-15 08:30:19 +03:00
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virtual ~SlavePTY() override;
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2021-06-16 16:20:35 +03:00
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void on_master_write(const UserOrKernelBuffer&, size_t);
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2019-01-16 15:36:10 +03:00
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unsigned index() const { return m_index; }
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2019-01-15 08:30:19 +03:00
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2020-09-06 19:48:24 +03:00
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time_t time_of_last_write() const { return m_time_of_last_write; }
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2021-08-22 16:59:47 +03:00
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virtual FileBlockerSet& blocker_set() override;
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2020-11-30 02:05:27 +03:00
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2019-01-21 04:33:01 +03:00
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private:
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// ^TTY
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2021-05-12 23:47:06 +03:00
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virtual String const& tty_name() const override;
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2021-06-16 16:20:35 +03:00
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virtual KResultOr<size_t> on_tty_write(const UserOrKernelBuffer&, size_t) override;
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2019-10-20 09:12:00 +03:00
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virtual void echo(u8) override;
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2019-01-21 04:33:01 +03:00
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// ^CharacterDevice
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2021-09-07 14:39:11 +03:00
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virtual bool can_read(const OpenFileDescription&, size_t) const override;
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virtual KResultOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
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virtual bool can_write(const OpenFileDescription&, size_t) const override;
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2021-10-03 01:24:00 +03:00
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virtual StringView class_name() const override { return "SlavePTY"sv; }
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2020-06-02 19:20:05 +03:00
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virtual KResult close() override;
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2019-01-15 08:30:19 +03:00
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2019-01-16 04:11:50 +03:00
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friend class MasterPTY;
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SlavePTY(MasterPTY&, unsigned index);
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2019-06-21 19:37:47 +03:00
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RefPtr<MasterPTY> m_master;
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2020-09-06 19:48:24 +03:00
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time_t m_time_of_last_write { 0 };
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unsigned m_index { 0 };
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2021-02-17 18:37:11 +03:00
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String m_tty_name;
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2021-08-16 23:13:58 +03:00
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mutable IntrusiveListNode<SlavePTY> m_list_node;
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public:
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2021-09-09 15:00:59 +03:00
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using List = IntrusiveList<&SlavePTY::m_list_node>;
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2021-08-22 02:37:17 +03:00
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static SpinlockProtected<SlavePTY::List>& all_instances();
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2019-01-15 08:30:19 +03:00
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};
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2020-02-16 03:27:42 +03:00
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}
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