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| HDF5 Last Updated on 2025-11-11 The HDF5 Field Guide

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Data Structures | Macros
H5ACpublic.h File Reference
`#include "H5public.h"`
`#include "H5Cpublic.h"`

## Data Structures
struct | H5AC_cache_config_t
struct | H5AC_cache_image_config_t

## Macros
#define | H5AC__CACHE_IMAGE__ENTRY_AGEOUT__MAX 100
#define | H5AC__CACHE_IMAGE__ENTRY_AGEOUT__NONE -1
#define | H5AC__CURR_CACHE_CONFIG_VERSION 1
#define | H5AC__CURR_CACHE_IMAGE_CONFIG_VERSION 1
#define | H5AC__MAX_TRACE_FILE_NAME_LEN 1024
#define | H5AC_METADATA_WRITE_STRATEGY__DISTRIBUTED 1
#define | H5AC_METADATA_WRITE_STRATEGY__PROCESS_0_ONLY 0

## Macro Definition Documentation

## ◆ H5AC__CACHE_IMAGE__ENTRY_AGEOUT__MAX

#define H5AC__CACHE_IMAGE__ENTRY_AGEOUT__MAX 100

Limit on number of times a prefetched entry can appear in subsequent cache images

Since
  1.10.1

## ◆ H5AC__CACHE_IMAGE__ENTRY_AGEOUT__NONE

#define H5AC__CACHE_IMAGE__ENTRY_AGEOUT__NONE -1

No limit on number of times a prefetched entry can appear in subsequent cache images

Since
  1.10.1

## ◆ H5AC__CURR_CACHE_CONFIG_VERSION

#define H5AC__CURR_CACHE_CONFIG_VERSION 1

## ◆ H5AC__CURR_CACHE_IMAGE_CONFIG_VERSION

#define H5AC__CURR_CACHE_IMAGE_CONFIG_VERSION 1

## ◆ H5AC__MAX_TRACE_FILE_NAME_LEN

#define H5AC__MAX_TRACE_FILE_NAME_LEN 1024

## ◆ H5AC_METADATA_WRITE_STRATEGY__DISTRIBUTED

#define H5AC_METADATA_WRITE_STRATEGY__DISTRIBUTED 1

## ◆ H5AC_METADATA_WRITE_STRATEGY__PROCESS_0_ONLY

#define H5AC_METADATA_WRITE_STRATEGY__PROCESS_0_ONLY 0