hdf5-metno 0.10.2

use hdf5_sys::h5p::{H5P_CRT_ORDER_INDEXED, H5P_CRT_ORDER_TRACKED};

use bitflags::bitflags;

/// Attribute storage phase change thresholds.
///
/// These thresholds determine the point at which attribute storage changes from
/// compact storage (i.e., storage in the object header) to dense storage (i.e.,
/// storage in a heap and indexed with a B-tree).
///
/// In the general case, attributes are initially kept in compact storage. When
/// the number of attributes exceeds `max_compact`, attribute storage switches to
/// dense storage. If the number of attributes subsequently falls below `min_dense`,
/// the attributes are returned to compact storage.
///
/// If `max_compact` is set to 0 (zero), dense storage always used.
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct AttrPhaseChange {
    /// Maximum number of attributes to be stored in compact storage (default: 8).
    pub max_compact: u32,
    /// Minimum number of attributes to be stored in dense storage (default: 6).
    pub min_dense: u32,
}

impl Default for AttrPhaseChange {
    fn default() -> Self {
        Self { max_compact: 8, min_dense: 6 }
    }
}

bitflags! {
    /// Flags for tracking and indexing attribute creation order of an object.
    ///
    /// Default behavior is that attribute creation order is neither tracked nor indexed.
    ///
    /// Note that if a creation order index is to be built, it must be specified in
    /// the object creation property list. HDF5 currently provides no mechanism to turn
    /// on attribute creation order tracking at object creation time and to build the
    /// index later.
    #[derive(Clone, Copy, Debug, PartialEq, Eq, Default)]
    pub struct AttrCreationOrder: u32 {
        /// Attribute creation order is tracked but not necessarily indexed.
        const TRACKED = H5P_CRT_ORDER_TRACKED as _;
        /// Attribute creation order is indexed (requires to be tracked).
        const INDEXED = H5P_CRT_ORDER_INDEXED as _;
    }
}