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fix(kernel/vfs): 🎉 a complete rewrite of the vfs

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This is the fourth time re-writing the VFS, hope this will be the last. Tried to make it as modular as possible so this won't be necessary in the future. 🙏

This change required the entire kernel code to be modified.
This commit is contained in:
EnderIce2
2025-05-13 15:59:12 +00:00
parent 83a7f83f81
commit 557c7e6235
83 changed files with 3252 additions and 2487 deletions
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94
Kernel/tests/readdir.cpp Normal file
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/*
This file is part of Fennix Kernel.
Fennix Kernel is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Kernel is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#include <fs/vfs.hpp>
#include "../kernel.h"
#ifdef DEBUG
void TestReadDirectory(Node &Target)
{
const size_t bufLen = 4096;
std::unique_ptr<uint8_t[]> buf(new uint8_t[bufLen]);
off_t off = 0;
off_t max = LONG_MAX;
KPrint("Listing directory: \x1b[1;36m%s\x1b[0m", Target->Name.c_str());
while (true)
{
ssize_t bytes = fs->ReadDirectory(Target, (kdirent *)buf.get(), bufLen, off, max);
if (bytes < 0)
{
KPrint("ReadDirectory returned error: %d", bytes);
break;
}
if (bytes == 0)
break;
ssize_t Pos = 0;
while (Pos < bytes)
{
kdirent *Entry = (kdirent *)(buf.get() + Pos);
if (Entry->d_reclen == 0)
{
KPrint("Entry with zero length detected at offset %ld!", off + Pos);
break;
}
KPrint("name=\"%s\" inode=%lu type=%u reclen=%u", Entry->d_name, Entry->d_ino, Entry->d_type, Entry->d_reclen);
Pos += Entry->d_reclen;
}
off += bytes;
}
}
void readdir_sanity_tests()
{
Node root = fs->GetRoot(0);
Node t0 = fs->Lookup(root, "/");
Node t1 = fs->Lookup(root, "/dev");
Node t2 = fs->Lookup(root, "/home");
Node t3 = fs->Lookup(root, "/var");
Node t4 = fs->Lookup(root, "/tmp");
KPrint("TEST /");
TestReadDirectory(t0);
TaskManager->Sleep(2000);
KPrint("TEST /dev");
TestReadDirectory(t1);
TaskManager->Sleep(2000);
KPrint("TEST /home");
TestReadDirectory(t2);
TaskManager->Sleep(2000);
KPrint("TEST /var");
TestReadDirectory(t3);
TaskManager->Sleep(2000);
KPrint("TEST /tmp");
TestReadDirectory(t4);
TaskManager->Sleep(2000);
CPU::Stop();
}
#endif // DEBUG