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HDF5 1.14.5
API Reference
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HDF5 1.14.5
API Reference
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#include <src/H5FDsubfiling/H5FDsubfiling.h>
Configuration structure for H5Pset_fapl_subfiling() / H5Pget_fapl_subfiling()
H5FD_subfiling_config_t is a public structure that is used to pass subfiling configuration data to the H5FD_SUBFILING driver via a File Access Property List. A pointer to an instance of this structure is a parameter to H5Pset_fapl_subfiling() and H5Pget_fapl_subfiling().
Data Fields | |
| uint32_t | magic |
| uint32_t | version |
| hid_t | ioc_fapl_id |
| bool | require_ioc |
| H5FD_subfiling_params_t | shared_cfg |
| hid_t ioc_fapl_id |
The File Access Property List which is setup with the file driver that the H5FD_SUBFILING driver will use for servicing I/O requests to the subfiles. Currently, the File Access Property List must be setup with the H5FD_IOC driver by calling H5Pset_fapl_ioc(), but future development may allow other file drivers to be used.
| uint32_t magic |
A somewhat unique number which distinguishes the H5FD_SUBFILING driver from other drivers. Used in combination with a version number, it can help to validate a user-generated File Access Property List. This field should be set to H5FD_SUBFILING_FAPL_MAGIC.
| bool require_ioc |
A boolean flag which indicates whether the H5FD_SUBFILING driver should use the H5FD_IOC driver for its I/O operations. This field should currently always be set to true.
| H5FD_subfiling_params_t shared_cfg |
A structure which contains the subfiling parameters that are shared between the H5FD_SUBFILING and H5FD_IOC drivers. This includes the subfile stripe size, stripe count, IOC selection method, etc.
| uint32_t version |
Version number of the H5FD_subfiling_config_t structure. Any instance passed to H5Pset_fapl_subfiling() / H5Pget_fapl_subfiling() must have a recognized version number or an error will be raised. Currently, this field should be set to H5FD_SUBFILING_CURR_FAPL_VERSION.
1.9.7 