Move VFS sources into Kernel/.

VirtualFileSystem/FileSystem.cpp

@@ -1,151 +0,0 @@
-#include <AK/Assertions.h>
-#include <AK/HashMap.h>
-#include <LibC/errno_numbers.h>
-#include "FileSystem.h"
-#include "MemoryManager.h"
-
-static dword s_lastFileSystemID;
-static HashMap<dword, FS*>* s_fs_map;
-static HashTable<Inode*>* s_inode_set;
-
-static HashMap<dword, FS*>& all_fses()
-{
-    if (!s_fs_map)
-        s_fs_map = new HashMap<dword, FS*>();
-    return *s_fs_map;
-}
-
-HashTable<Inode*>& all_inodes()
-{
-    if (!s_inode_set)
-        s_inode_set = new HashTable<Inode*>();
-    return *s_inode_set;
-}
-
-void FS::initialize_globals()
-{
-    s_lastFileSystemID = 0;
-    s_fs_map = nullptr;
-    s_inode_set = nullptr;
-}
-
-FS::FS()
-    : m_fsid(++s_lastFileSystemID)
-{
-    all_fses().set(m_fsid, this);
-}
-
-FS::~FS()
-{
-    all_fses().remove(m_fsid);
-}
-
-FS* FS::from_fsid(dword id)
-{
-    auto it = all_fses().find(id);
-    if (it != all_fses().end())
-        return (*it).value;
-    return nullptr;
-}
-
-ByteBuffer Inode::read_entire(FileDescriptor* descriptor)
-{
-    size_t initial_size = metadata().size ? metadata().size : 4096;
-    auto contents = ByteBuffer::create_uninitialized(initial_size);
-
-    ssize_t nread;
-    byte buffer[4096];
-    byte* out = contents.pointer();
-    Unix::off_t offset = 0;
-    for (;;) {
-        nread = read_bytes(offset, sizeof(buffer), buffer, descriptor);
-        ASSERT(nread <= (ssize_t)sizeof(buffer));
-        if (nread <= 0)
-            break;
-        memcpy(out, buffer, nread);
-        out += nread;
-        offset += nread;
-        ASSERT(offset <= (ssize_t)initial_size); // FIXME: Support dynamically growing the buffer.
-    }
-    if (nread < 0) {
-        kprintf("Inode::read_entire: ERROR: %d\n", nread);
-        return nullptr;
-    }
-
-    contents.trim(offset);
-    return contents;
-}
-
-FS::DirectoryEntry::DirectoryEntry(const char* n, InodeIdentifier i, byte ft)
-    : name_length(strlen(n))
-    , inode(i)
-    , fileType(ft)
-{
-    memcpy(name, n, name_length);
-    name[name_length] = '\0';
-}
-
-FS::DirectoryEntry::DirectoryEntry(const char* n, size_t nl, InodeIdentifier i, byte ft)
-    : name_length(nl)
-    , inode(i)
-    , fileType(ft)
-{
-    memcpy(name, n, nl);
-    name[nl] = '\0';
-}
-
-Inode::Inode(FS& fs, unsigned index)
-    : m_fs(fs)
-    , m_index(index)
-{
-    all_inodes().set(this);
-}
-
-Inode::~Inode()
-{
-    all_inodes().remove(this);
-}
-
-void Inode::will_be_destroyed()
-{
-    if (m_metadata_dirty)
-        flush_metadata();
-}
-
-int Inode::set_atime(Unix::time_t)
-{
-    return -ENOTIMPL;
-}
-
-int Inode::set_ctime(Unix::time_t)
-{
-    return -ENOTIMPL;
-}
-
-int Inode::set_mtime(Unix::time_t)
-{
-    return -ENOTIMPL;
-}
-
-int Inode::increment_link_count()
-{
-    return -ENOTIMPL;
-}
-
-int Inode::decrement_link_count()
-{
-    return -ENOTIMPL;
-}
-
-void FS::sync()
-{
-    for (auto* inode : all_inodes()) {
-        if (inode->is_metadata_dirty())
-            inode->flush_metadata();
-    }
-}
-
-void Inode::set_vmo(RetainPtr<VMObject>&& vmo)
-{
-    m_vmo = move(vmo);
-}