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| HDF5 Last Updated on 2026-07-28 The HDF5 Field Guide

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h5vl Module Reference
Fortran VOL (H5VL) Interface

This module contains Fortran interfaces for H5VL (VOL) functions. More...

## Functions/Subroutines
subroutine | h5vlclose_f (vol_id, hdferr)
| Closes a VOL connector ID.
subroutine | h5vlcmp_connector_cls_f (are_same, conn_id1, conn_id2, hdferr)
| Determines whether two connector identifiers refer to the same connector.
subroutine | h5vlget_connector_id_by_name_f (name, vol_id, hdferr)
| Retrieves the ID for a registered VOL connector.
subroutine | h5vlget_connector_id_by_value_f (value, vol_id, hdferr)
| Retrieves the ID for a registered VOL connector.
subroutine | h5vlget_connector_id_f (obj_id, vol_id, hdferr)
| Retrieves the ID for a registered VOL connector.
subroutine | h5vlget_connector_name_f (obj_id, name, hdferr, name_len)
| Retrieves a connector name for a VOL.
subroutine | h5vlis_connector_registered_by_name_f (name, registered, hdferr)
| Determines whether a VOL class has been registered or not ccording to a specified connector name.
subroutine | h5vlis_connector_registered_by_value_f (value, registered, hdferr)
| Determines whether a VOL class has been registered or not according to a specified connector value (ID).
subroutine | h5vlnative_addr_to_token_f (loc_id, addr, token, hdferr)
| Retrieves the token representation from an address for a location identifier.
subroutine | h5vlnative_token_to_addr_f (loc_id, token, addr, hdferr)
| Retrieves the object address from a token representation for a location identifier.
subroutine | h5vlregister_connector_by_name_f (name, vol_id, hdferr, vipl_id)
| Registers a new VOL connector as a member of the virtual object layer class by name.
subroutine | h5vlregister_connector_by_value_f (connector_value, vol_id, hdferr, vipl_id)
| Registers a new VOL connector by value.
subroutine | h5vlunregister_connector_f (plugin_id, hdferr)
| Removes a VOL connector ID from the library.

## Detailed Description

This module contains Fortran interfaces for H5VL (VOL) functions.