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Kernel/LibC: Implement {,f}statvfs

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Bananymous
2024-12-02 06:55:35 +02:00
parent ad1f175a39
commit a10ca47657
21 changed files with 173 additions and 5 deletions
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20
kernel/include/kernel/FS/FAT/FileSystem.h
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@@ -20,6 +20,18 @@ namespace Kernel
};
public:
virtual unsigned long bsize() const override;
virtual unsigned long frsize() const override;
virtual fsblkcnt_t blocks() const override;
virtual fsblkcnt_t bfree() const override;
virtual fsblkcnt_t bavail() const override;
virtual fsfilcnt_t files() const override;
virtual fsfilcnt_t ffree() const override;
virtual fsfilcnt_t favail() const override;
virtual unsigned long fsid() const override;
virtual unsigned long flag() const override;
virtual unsigned long namemax() const override;
static BAN::ErrorOr<bool> probe(BAN::RefPtr<BlockDevice>);
static BAN::ErrorOr<BAN::RefPtr<FATFS>> create(BAN::RefPtr<BlockDevice>);
@@ -45,13 +57,15 @@ namespace Kernel
// TODO: These probably should be constant variables
uint32_t root_sector_count() const { return BAN::Math::div_round_up<uint32_t>(m_bpb.root_entry_count * 32, m_bpb.bytes_per_sector); }
uint32_t fat_sector_count() const { return m_bpb.fat_size16 ? m_bpb.fat_size16 : m_bpb.ext_32.fat_size32; }
uint32_t fat_size() const { return m_bpb.fat_size16 ? m_bpb.fat_size16 : m_bpb.ext_32.fat_size32; }
uint32_t total_sector_count() const { return m_bpb.total_sectors16 ? m_bpb.total_sectors16 : m_bpb.total_sectors32; }
uint32_t data_sector_count() const { return total_sector_count() - (m_bpb.reserved_sector_count + (m_bpb.number_of_fats * fat_sector_count()) + root_sector_count()); }
uint32_t data_sector_count() const { return total_sector_count() - (m_bpb.reserved_sector_count + (m_bpb.number_of_fats * fat_size()) + root_sector_count()); }
uint32_t cluster_count() const { return data_sector_count() / m_bpb.sectors_per_cluster; }
uint32_t first_data_sector() const { return m_bpb.reserved_sector_count + (m_bpb.number_of_fats * fat_sector_count()) + root_sector_count(); }
uint32_t first_data_sector() const { return m_bpb.reserved_sector_count + (m_bpb.number_of_fats * fat_size()) + root_sector_count(); }
uint32_t first_fat_sector() const { return m_bpb.reserved_sector_count; }
uint8_t bits_per_fat_entry() const { return static_cast<uint8_t>(m_type); }
private:
BAN::RefPtr<BlockDevice> m_block_device;
BAN::RefPtr<FATInode> m_root_inode;