#[repr(C)]
pub struct IOMessage {
    /// The file extension
    pub extension: [wchar_t; 12],
    /// Hard Disk Volume Serial Number where the file is saved (from [`FILE_ID_INFO`])
    pub file_id_vsn: c_ulonglong,
    /// File ID on the disk ([`FILE_ID_INFO`])
    pub file_id_id: [u8; 16],
    /// Number of bytes transferred (`IO_STATUS_BLOCK.Information`)
    pub mem_sized_used: c_ulonglong,
    /// (Optional) File Entropy calculated by the driver
    pub entropy: f64,
    /// Pid responsible for this io activity
    pub pid: c_ulong,
    /// Windows IRP Type caught by the minifilter:
    /// - NONE (0)
    /// - READ (1)
    /// - WRITE (2)
    /// - SETINFO (3)
    /// - CREATE (4)
    /// - CLEANUP (5)
    pub irp_op: c_uchar,
    /// Is the entropy calculated?
    pub is_entropy_calc: u8,
    /// Type of i/o operation:
    /// - FILE_CHANGE_NOT_SET (0)
    /// - FILE_OPEN_DIRECTORY (1)
    /// - FILE_CHANGE_WRITE (2)
    /// - FILE_CHANGE_NEW_FILE (3)
    /// - FILE_CHANGE_RENAME_FILE (4)
    /// - FILE_CHANGE_EXTENSION_CHANGED (5)
    /// - FILE_CHANGE_DELETE_FILE (6)
    /// - FILE_CHANGE_DELETE_NEW_FILE (7)
    /// - FILE_CHANGE_OVERWRITE_FILE (8)
    pub file_change: c_uchar,
    /// The driver has the ability to monitor specific directories only (feature currently not used):
    /// - FILE_NOT_PROTECTED (0): Monitored dirs do not contained this file
    /// - FILE_PROTECTED (1)
    /// - FILE_MOVED_IN (2)
    /// - FILE_MOVED_OUT (3)
    pub file_location_info: c_uchar,
    /// File path on the disk
    pub filepathstr: String,
    /// Group Identifier (maintained by the minifilter) of the operation
    pub gid: c_ulonglong,
    /// see class [`RuntimeFeatures`]
    pub runtime_features: RuntimeFeatures,
    /// Size of the file. Can be equal to -1 if the file path is not found.
    pub file_size: i64,
    /// Rough time at which the IRP was created
    pub time: SystemTime,
}