* actual free allocation units, sectors per allocation unit, and bytes per sector.
 */
public class FileFsFullSizeInformation implements AllocInfo, FileSystemInformation, Decodable {

    private long alloc; // Also handles SmbQueryFSSizeInfo
    private long free;
    private int sectPerAlloc;
    private int bytesPerSect;

    /**

        private final long free;
        private byte fileSystemInformationClass = FS_SIZE_INFO;

        TestAllocInfo(long capacity, long free) {
            this.capacity = capacity;
            this.free = free;
        }

        TestAllocInfo(long capacity, long free, byte fileSystemInformationClass) {
            this.capacity = capacity;
            this.free = free;

that use-after-free bugs are possible with regular Go values. This package
limits the impact of these use-after-free bugs by preventing reuse of freed
memory regions until the garbage collector is able to determine that it is
safe. Typically, a use-after-free bug will result in a fault and a helpful
error message, but this package reserves the right to not force a fault on

        long expectedCapacity = alloc * sectPerAlloc * bytesPerSect;
        assertEquals(expectedCapacity, smbInfoAllocation.getCapacity());

        // Verify free space calculation: free * sectPerAlloc * bytesPerSect
        long expectedFree = free * sectPerAlloc * bytesPerSect;
        assertEquals(expectedFree, smbInfoAllocation.getFree());
    }

    @Test
    @DisplayName("Test decode with offset")

	// in such scenarios.
	if info.Free > info.Total {
		return info, fmt.Errorf("detected free space (%d) > total drive space (%d), fs corruption at (%s). please run 'fsck'", info.Free, info.Total, path)
	}
	info.Used = info.Total - info.Free

	if firstTime {
		bfs, err := blockdevice.NewDefaultFS()
		if err == nil {
			devName := ""
			diskstats, _ := bfs.ProcDiskstats()
			for _, dstat := range diskstats {
				// ignore all loop devices

/*
 * © 2017 AgNO3 Gmbh & Co. KG
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of

		Ffree:  uint64(s.F_ffree),
		FSType: getFSType(s.F_fstypename[:]),
	}
	if info.Free > info.Total {
		return info, fmt.Errorf("detected free space (%d) > total drive space (%d), fs corruption at (%s). please run 'fsck'", info.Free, info.Total, path)
	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor

// getFileInfoVersions partitions this object's versions such that,
//   - fivs.Versions has all the non-free versions
//   - fivs.FreeVersions has all the free versions
//
// if inclFreeVersions is true all the versions are in fivs.Versions, free and non-free versions alike.
//
// Note: Only the scanner requires fivs.Versions to have exclusively non-free versions. This is used while enforcing NewerNoncurrentVersions lifecycle element.

                long expectedFree) throws SMBProtocolDecodingException {
            // Given
            ByteBuffer buffer = ByteBuffer.allocate(32);
            buffer.order(ByteOrder.LITTLE_ENDIAN);
            buffer.putLong(alloc);
            buffer.putLong(free);
            buffer.putLong(free); // Actual free (ignored)

                "1000, 500, 16, 4096", // Large sectors and allocation
                "1000, 0, 8, 512", // No free space
                "1000, 1000, 8, 512" // All space free
        })
        void shouldDecodeVariousSectorConfigurations(long alloc, long free, int sectPerAlloc, int bytesPerSect)
                throws SMBProtocolDecodingException {
            // Given