RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 08:48:11 +00:00
Code Issues Activity Actions

DevPtsFS: Do not assume there is one of it

Browse source 
Unfortunately, that also means it can no longer inherit from SynthFS.
This commit is contained in:
Sergey Bugaev 2019-08-16 18:46:18 +03:00 • committed by Andreas Kling
parent 37cc80fb96
commit 66a0a12435
5 changed files with 188 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

48
Kernel/FileSystem/DevPtsFS.h
View file

@ -1,28 +1,54 @@
#pragma once
#include <AK/Types.h>
#include <Kernel/FileSystem/SyntheticFileSystem.h>
#include <Kernel/FileSystem/FileSystem.h>
#include <Kernel/FileSystem/Inode.h>
class Process;
class SlavePTY;
class DevPtsFSInode;
class DevPtsFS final : public SynthFS {
class DevPtsFS final : public FS {
public:
static DevPtsFS& the();
virtual ~DevPtsFS() override;
static NonnullRefPtr<DevPtsFS> create();
virtual bool initialize() override;
virtual const char* class_name() const override;
virtual const char* class_name() const override { return "DevPtsFS"; }
void register_slave_pty(SlavePTY&);
void unregister_slave_pty(SlavePTY&);
virtual InodeIdentifier root_inode() const override;
virtual RefPtr<Inode> create_inode(InodeIdentifier parentInode, const String& name, mode_t, off_t size, dev_t, int& error) override;
virtual RefPtr<Inode> create_directory(InodeIdentifier parentInode, const String& name, mode_t, int& error) override;
virtual RefPtr<Inode> get_inode(InodeIdentifier) const override;
static void register_slave_pty(SlavePTY&);
static void unregister_slave_pty(SlavePTY&);
private:
DevPtsFS();
NonnullRefPtr<SynthFSInode> create_slave_pty_device_file(unsigned index);
HashTable<SlavePTY*> m_slave_ptys;
RefPtr<DevPtsFSInode> m_root_inode;
};
class DevPtsFSInode final : public Inode {
friend class DevPtsFS;
public:
virtual ~DevPtsFSInode() override;
private:
DevPtsFSInode(DevPtsFS&, unsigned index);
// ^Inode
virtual ssize_t read_bytes(off_t, ssize_t, u8* buffer, FileDescription*) const override;
virtual InodeMetadata metadata() const override;
virtual bool traverse_as_directory(Function<bool(const FS::DirectoryEntry&)>) const override;
virtual InodeIdentifier lookup(StringView name) override;
virtual void flush_metadata() override;
virtual ssize_t write_bytes(off_t, ssize_t, const u8* buffer, FileDescription*) override;
virtual KResult add_child(InodeIdentifier child_id, const StringView& name, mode_t) override;
virtual KResult remove_child(const StringView& name) override;
virtual size_t directory_entry_count() const override;
virtual KResult chmod(mode_t) override;
virtual KResult chown(uid_t, gid_t) override;
InodeMetadata m_metadata;
};