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Kernel: Changed stat values from func to be field

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- Removed virtual functions for all of the stat stuff.
This did however introduce some issues, mainly with /proc
becoming out of sync if you changed your ID. I propose we
do the linux thing and just have a stat update function
which is optional, but allows dynamic updates of stat fields
for cases such as those in uid/gid in /proc.
- Simplified the API, although still kind of annoying
it is a bit simpler.
- Moved some of the FS structure from having the FS inode inside
the in memory inode to a Serialise <-> Deserialise model where
Inodes are deserialised from disk into in memory ones and then
back into on disk ones when it comes time for syncing.
This makes it semantically better in my opinion, as it explicitly
separates disk and non-disk functionality.
This commit is contained in:
DcraftBg
2026-05-15 20:39:51 +03:00
committed by Bananymous
parent bf2121e166
commit 647d6a273d
47 changed files with 393 additions and 419 deletions
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10
kernel/include/kernel/Device/DebugDevice.h
View File

@@ -8,15 +8,14 @@ namespace Kernel
public:
static BAN::ErrorOr<BAN::RefPtr<DebugDevice>> create(mode_t, uid_t, gid_t);
virtual dev_t rdev() const override { return m_rdev; }
virtual BAN::StringView name() const override { return "debug"_sv; }
protected:
DebugDevice(mode_t mode, uid_t uid, gid_t gid, dev_t rdev)
: CharacterDevice(mode, uid, gid)
, m_rdev(rdev)
{ }
{
m_rdev = rdev;
}
virtual BAN::ErrorOr<size_t> read_impl(off_t, BAN::ByteSpan) override { return 0; }
virtual BAN::ErrorOr<size_t> write_impl(off_t, BAN::ConstByteSpan buffer) override;
@@ -25,9 +24,6 @@ namespace Kernel
virtual bool can_write_impl() const override { return true; }
virtual bool has_error_impl() const override { return false; }
virtual bool has_hungup_impl() const override { return false; }
private:
const dev_t m_rdev;
};
}

6
kernel/include/kernel/Device/Device.h
View File

@@ -22,8 +22,6 @@ namespace Kernel
return BAN::Error::from_errno(ENOTSUP);
}
virtual dev_t rdev() const override = 0;
virtual BAN::StringView name() const = 0;
protected:
@@ -45,7 +43,7 @@ namespace Kernel
BlockDevice(mode_t mode, uid_t uid, gid_t gid)
: Device(mode, uid, gid)
{
m_inode_info.mode |= Inode::Mode::IFBLK;
m_mode |= Inode::Mode::IFBLK;
}
};
@@ -55,7 +53,7 @@ namespace Kernel
CharacterDevice(mode_t mode, uid_t uid, gid_t gid)
: Device(mode, uid, gid)
{
m_inode_info.mode |= Inode::Mode::IFCHR;
m_mode |= Inode::Mode::IFCHR;
}
};

2
kernel/include/kernel/Device/FramebufferDevice.h
View File

@@ -30,7 +30,6 @@ namespace Kernel
virtual BAN::ErrorOr<BAN::UniqPtr<MemoryRegion>> mmap_region(PageTable&, off_t offset, size_t len, AddressRange, MemoryRegion::Type, PageTable::flags_t, int status_flags) override;
virtual dev_t rdev() const override { return m_rdev; }
virtual BAN::StringView name() const override { return m_name.sv(); }
protected:
@@ -50,7 +49,6 @@ namespace Kernel
private:
const BAN::String m_name;
const dev_t m_rdev;
vaddr_t m_video_memory_vaddr { 0 };
const paddr_t m_video_memory_paddr;

9
kernel/include/kernel/Device/NullDevice.h
View File

@@ -10,15 +10,14 @@ namespace Kernel
public:
static BAN::ErrorOr<BAN::RefPtr<NullDevice>> create(mode_t, uid_t, gid_t);
virtual dev_t rdev() const override { return m_rdev; }
virtual BAN::StringView name() const override { return "null"_sv; }
protected:
NullDevice(mode_t mode, uid_t uid, gid_t gid, dev_t rdev)
: CharacterDevice(mode, uid, gid)
, m_rdev(rdev)
{ }
{
m_rdev = rdev;
}
virtual BAN::ErrorOr<size_t> read_impl(off_t, BAN::ByteSpan) override { return 0; }
virtual BAN::ErrorOr<size_t> write_impl(off_t, BAN::ConstByteSpan buffer) override { return buffer.size(); };
@@ -28,8 +27,6 @@ namespace Kernel
virtual bool has_error_impl() const override { return false; }
virtual bool has_hungup_impl() const override { return false; }
private:
const dev_t m_rdev;
};
}

10
kernel/include/kernel/Device/RandomDevice.h
View File

@@ -8,15 +8,14 @@ namespace Kernel
public:
static BAN::ErrorOr<BAN::RefPtr<RandomDevice>> create(mode_t, uid_t, gid_t);
virtual dev_t rdev() const override { return m_rdev; }
virtual BAN::StringView name() const override { return "random"_sv; }
protected:
RandomDevice(mode_t mode, uid_t uid, gid_t gid, dev_t rdev)
: CharacterDevice(mode, uid, gid)
, m_rdev(rdev)
{ }
{
m_rdev = rdev;
}
virtual BAN::ErrorOr<size_t> read_impl(off_t, BAN::ByteSpan) override;
virtual BAN::ErrorOr<size_t> write_impl(off_t, BAN::ConstByteSpan buffer) override { return buffer.size(); };
@@ -25,9 +24,6 @@ namespace Kernel
virtual bool can_write_impl() const override { return false; }
virtual bool has_error_impl() const override { return false; }
virtual bool has_hungup_impl() const override { return false; }
private:
const dev_t m_rdev;
};
}

10
kernel/include/kernel/Device/ZeroDevice.h
View File

@@ -8,15 +8,14 @@ namespace Kernel
public:
static BAN::ErrorOr<BAN::RefPtr<ZeroDevice>> create(mode_t, uid_t, gid_t);
virtual dev_t rdev() const override { return m_rdev; }
virtual BAN::StringView name() const override { return "zero"_sv; }
protected:
ZeroDevice(mode_t mode, uid_t uid, gid_t gid, dev_t rdev)
: CharacterDevice(mode, uid, gid)
, m_rdev(rdev)
{ }
{
m_rdev = rdev;
}
virtual BAN::ErrorOr<size_t> read_impl(off_t, BAN::ByteSpan) override;
virtual BAN::ErrorOr<size_t> write_impl(off_t, BAN::ConstByteSpan buffer) override { return buffer.size(); };
@@ -25,9 +24,6 @@ namespace Kernel
virtual bool can_write_impl() const override { return false; }
virtual bool has_error_impl() const override { return false; }
virtual bool has_hungup_impl() const override { return false; }
private:
const dev_t m_rdev;
};
}