28 lines
961 B
C++
28 lines
961 B
C++
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#include "fs/ext2/FileSystem.h"
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namespace Ext2
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{
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FileSystem::FileSystem()
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{
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}
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Result<SharedPtr<VFS::Inode>> FileSystem::find_inode_by_number(ino_t inode)
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{
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auto maybe_inode = m_inode_cache.try_get(inode);
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if (maybe_inode.has_value()) return maybe_inode.value();
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return err(ENOENT);
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}
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Result<SharedPtr<VFS::FileSystem>> FileSystem::create(SharedPtr<Device> host_device)
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{
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SharedPtr<FileSystem> fs = TRY(adopt_shared_if_nonnull(new (std::nothrow) FileSystem()));
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const usize nread = TRY(host_device->read((u8*)&fs->m_superblock, 1024, 1024));
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if (nread != 1024) return err(EINVAL); // Source had an invalid superblock.
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if (fs->m_superblock.signature != EXT2_MAGIC) return err(EINVAL); // Source had an invalid superblock.
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// TODO: Implement basic Ext2 reading, enough to be able to mount a volume.
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return err(ENOTSUP);
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}
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}
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