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HDF5  1.15.0
API Reference
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H5FD_ioc_config_t Struct Reference

#include <src/H5FDsubfiling/H5FDioc.h>

Detailed Description

Configuration structure for H5Pset_fapl_ioc() / H5Pget_fapl_ioc()

H5FD_ioc_config_t is a public structure that is used to pass configuration data to the H5FD_IOC driver via a File Access Property List. A pointer to an instance of this structure is a parameter to H5Pset_fapl_ioc() and H5Pget_fapl_ioc().

Data Fields

uint32_t magic
uint32_t version
int32_t thread_pool_size

Field Documentation

◆ magic

uint32_t magic

A somewhat unique number which distinguishes the H5FD_IOC 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_IOC_FAPL_MAGIC.

◆ thread_pool_size

int32_t thread_pool_size

The number of I/O concentrator worker threads to use.

This value can also be set or adjusted with the H5FD_IOC_THREAD_POOL_SIZE environment variable.

◆ version

uint32_t version

Version number of the H5FD_ioc_config_t structure. Any instance passed to H5Pset_fapl_ioc() / H5Pget_fapl_ioc() must have a recognized version number or an error will be raised. Currently, this field should be set to H5FD_IOC_CURR_FAPL_VERSION.

The documentation for this struct was generated from the following file: