2018-10-10 12:53:07 +03:00
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#pragma once
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#include "VirtualFileSystem.h"
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2018-10-27 17:43:03 +03:00
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#include "InodeMetadata.h"
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2018-11-12 03:28:46 +03:00
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#include "FIFO.h"
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2018-10-10 12:53:07 +03:00
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#include <AK/ByteBuffer.h>
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2018-11-12 03:28:46 +03:00
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#include <AK/CircularQueue.h>
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2018-11-05 21:01:22 +03:00
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#include <AK/Retainable.h>
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2018-10-10 12:53:07 +03:00
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2018-11-07 14:05:51 +03:00
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#ifdef SERENITY
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2018-10-31 00:03:02 +03:00
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class TTY;
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2019-01-14 16:21:51 +03:00
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class Process;
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2018-11-07 14:05:51 +03:00
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#endif
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2018-10-31 00:03:02 +03:00
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2018-11-07 13:37:54 +03:00
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class FileDescriptor : public Retainable<FileDescriptor> {
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2018-10-10 12:53:07 +03:00
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public:
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2018-11-15 16:43:10 +03:00
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static RetainPtr<FileDescriptor> create(RetainPtr<Vnode>&&);
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2018-11-12 03:28:46 +03:00
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static RetainPtr<FileDescriptor> create_pipe_writer(FIFO&);
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static RetainPtr<FileDescriptor> create_pipe_reader(FIFO&);
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2018-11-07 13:37:54 +03:00
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~FileDescriptor();
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2018-10-10 12:53:07 +03:00
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2018-11-07 13:37:54 +03:00
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RetainPtr<FileDescriptor> clone();
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2018-11-02 22:41:58 +03:00
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2018-11-01 16:00:28 +03:00
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int close();
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2018-10-14 23:57:41 +03:00
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Unix::off_t seek(Unix::off_t, int whence);
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2018-12-03 01:34:50 +03:00
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ssize_t read(byte*, size_t);
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ssize_t write(const byte* data, size_t);
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2018-10-14 23:57:41 +03:00
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int stat(Unix::stat*);
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2018-10-14 22:19:27 +03:00
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2019-01-14 16:21:51 +03:00
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bool has_data_available_for_reading(Process&);
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2018-11-12 03:28:46 +03:00
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bool can_write();
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2018-10-25 14:07:59 +03:00
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2018-12-03 01:34:50 +03:00
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ssize_t get_dir_entries(byte* buffer, size_t);
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2018-10-24 13:43:52 +03:00
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2018-12-03 02:39:25 +03:00
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ByteBuffer read_entire_file();
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2018-10-10 12:53:07 +03:00
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2018-11-14 01:44:54 +03:00
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String absolute_path();
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2018-10-24 15:28:22 +03:00
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2018-12-03 02:39:25 +03:00
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bool is_directory() const;
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2018-10-26 15:24:11 +03:00
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2018-11-16 15:11:21 +03:00
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bool is_character_device() const { return m_vnode && m_vnode->isCharacterDevice(); }
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CharacterDevice* character_device() { return m_vnode ? m_vnode->characterDevice() : nullptr; }
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2018-11-07 14:05:51 +03:00
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#ifdef SERENITY
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2018-12-03 02:39:25 +03:00
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bool is_tty() const;
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const TTY* tty() const;
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TTY* tty();
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#endif
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2018-10-31 00:03:02 +03:00
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2018-10-27 17:43:03 +03:00
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InodeMetadata metadata() const { return m_vnode->metadata(); }
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2018-11-15 16:43:10 +03:00
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Vnode* vnode() { return m_vnode.ptr(); }
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2018-12-19 23:56:45 +03:00
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Inode* inode() { return m_vnode ? m_vnode->core_inode() : nullptr; }
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2018-10-26 15:24:11 +03:00
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2018-10-22 15:06:22 +03:00
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#ifdef SERENITY
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2018-12-03 02:39:25 +03:00
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bool is_blocking() const { return m_is_blocking; }
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void set_blocking(bool b) { m_is_blocking = b; }
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2018-11-11 17:36:40 +03:00
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dword file_flags() const { return m_file_flags; }
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2018-11-13 03:36:31 +03:00
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void set_file_flags(dword flags) { m_file_flags = flags; }
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2018-11-12 03:28:46 +03:00
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bool is_fifo() const { return m_fifo; }
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FIFO::Direction fifo_direction() { return m_fifo_direction; }
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2018-10-18 11:27:07 +03:00
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#endif
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2018-12-03 02:39:25 +03:00
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ByteBuffer& generator_cache() { return m_generator_cache; }
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2018-10-27 01:14:24 +03:00
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2018-10-10 12:53:07 +03:00
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private:
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2018-11-15 16:43:10 +03:00
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friend class VFS;
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explicit FileDescriptor(RetainPtr<Vnode>&&);
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FileDescriptor(FIFO&, FIFO::Direction);
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2018-10-10 12:53:07 +03:00
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2018-11-15 16:43:10 +03:00
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RetainPtr<Vnode> m_vnode;
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2018-10-14 22:19:27 +03:00
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2018-12-03 02:39:25 +03:00
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Unix::off_t m_current_offset { 0 };
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2018-10-18 11:27:07 +03:00
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2018-12-03 02:39:25 +03:00
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ByteBuffer m_generator_cache;
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2018-10-27 01:14:24 +03:00
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2018-10-22 15:06:22 +03:00
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#ifdef SERENITY
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2018-12-03 02:39:25 +03:00
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bool m_is_blocking { true };
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2018-11-11 17:36:40 +03:00
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dword m_file_flags { 0 };
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2018-11-12 03:28:46 +03:00
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RetainPtr<FIFO> m_fifo;
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FIFO::Direction m_fifo_direction { FIFO::Neither };
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2018-10-18 11:27:07 +03:00
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#endif
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2018-10-10 12:53:07 +03:00
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};
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