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

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:
2025-05-13 15:59:12 +00:00
parent 83a7f83f81
commit 557c7e6235
83 changed files with 3252 additions and 2487 deletions

View File

@ -17,98 +17,60 @@
#include "../cmds.hpp"
#include <filesystem.hpp>
#include <fs/vfs.hpp>
#include "../../kernel.h"
using namespace vfs;
const char *ColorNodeType(FileNode *node)
const char *ColorNodeType(Node node)
{
if (node->IsRegularFile())
return "\x1b[32m";
return "\x1b[0m";
else if (node->IsDirectory())
return "\x1b[34m";
return "\x1b[1;34m";
else if (node->IsBlockDevice())
return "\x1b[33m";
return "\x1b[1;33m";
else if (node->IsCharacterDevice())
return "\x1b[33m";
return "\x1b[1;33m";
else if (node->IsFIFO())
return "\x1b[33m";
return "\x1b[0;33m";
else if (node->IsSymbolicLink())
return "\x1b[35m";
return "\x1b[1;36m";
else
return "\x1b[0m";
}
__no_sanitize("alignment") size_t MaxNameLength(FileNode *nodes)
__no_sanitize("alignment") void PrintLS(Node node)
{
size_t maxLength = 0;
kdirent *dirBuffer = new kdirent[16];
ssize_t read = 0;
off_t offset = 0;
while ((read = nodes->ReadDir(dirBuffer, sizeof(kdirent) * 16, offset, LONG_MAX)) > 0)
{
if (read / sizeof(kdirent) == 0)
break;
off_t bufOffset = 0;
debug("There are %ld entries in this directory", read / sizeof(kdirent));
for (size_t i = 0; i < read / sizeof(kdirent); i++)
{
kdirent *dirent = (kdirent *)((uintptr_t)dirBuffer + bufOffset);
if (dirent->d_reclen == 0)
break;
bufOffset += dirent->d_reclen;
maxLength = std::max(maxLength, strlen(dirent->d_name));
debug("dirent->d_name: %s (max length: %ld)", dirent->d_name, maxLength);
}
offset += read / sizeof(kdirent);
}
delete[] dirBuffer;
return maxLength;
}
__no_sanitize("alignment") void PrintLS(FileNode *node)
{
size_t maxNameLength = MaxNameLength(node);
size_t maxNameLength = 0;
int count = 0;
bool first = true;
kdirent *dirBuffer = new kdirent[16];
ssize_t read = 0;
off_t offset = 0;
while ((read = node->ReadDir(dirBuffer, sizeof(kdirent) * 16, offset, LONG_MAX)) > 0)
{
if (read / sizeof(kdirent) == 0)
break;
std::list<Node> children = fs->ReadDirectory(node);
off_t bufOffset = 0;
for (size_t i = 0; i < read / sizeof(kdirent); i++)
{
if (count % 5 == 0 && !first)
printf("\n");
kdirent *dirent = (kdirent *)((uintptr_t)dirBuffer + bufOffset);
if (dirent->d_reclen == 0)
break;
bufOffset += dirent->d_reclen;
printf(" %s%-*s ", ColorNodeType(node), (int)maxNameLength, dirent->d_name);
count++;
first = false;
}
offset += read / sizeof(kdirent);
for (auto &&i : children)
std::max(maxNameLength, i->Name.length());
for (auto &&i : children)
{
if (count % 5 == 0 && !first)
printf("\n");
printf(" %s%-*s ", ColorNodeType(i), (int)maxNameLength, i->Name.c_str());
count++;
first = false;
}
printf("\x1b[0m\n");
delete[] dirBuffer;
}
void cmd_ls(const char *args)
{
if (args[0] == '\0')
{
FileNode *rootNode = thisProcess->CWD;
Node rootNode = thisProcess->CWD;
if (rootNode == nullptr)
rootNode = fs->GetRoot(0);
@ -117,7 +79,7 @@ void cmd_ls(const char *args)
return;
}
FileNode *thisNode = fs->GetByPath(args, nullptr);
Node thisNode = fs->Lookup(thisProcess->CWD, args);
if (thisNode == nullptr)
{