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378 lines
17 KiB
C
378 lines
17 KiB
C
3 weeks ago
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*-------------------------------------------------------------------------
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*
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* Created: H5ACprivate.h
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* Jul 9 1997
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* Robb Matzke <matzke@llnl.gov>
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*
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* Purpose: Constants and typedefs available to the rest of the
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* library.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _H5ACprivate_H
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#define _H5ACprivate_H
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#include "H5ACpublic.h" /*public prototypes */
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/* Pivate headers needed by this header */
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#include "H5private.h" /* Generic Functions */
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#include "H5Cprivate.h" /* Cache */
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#include "H5Fprivate.h" /* File access */
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#ifdef H5_METADATA_TRACE_FILE
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#define H5AC__TRACE_FILE_ENABLED 1
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#else /* H5_METADATA_TRACE_FILE */
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#define H5AC__TRACE_FILE_ENABLED 0
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#endif /* H5_METADATA_TRACE_FILE */
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/* Types of metadata objects cached */
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typedef enum {
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H5AC_BT_ID = 0, /*B-tree nodes */
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H5AC_SNODE_ID, /*symbol table nodes */
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H5AC_LHEAP_PRFX_ID, /*local heap prefix */
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H5AC_LHEAP_DBLK_ID, /*local heap data block */
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H5AC_GHEAP_ID, /*global heap */
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H5AC_OHDR_ID, /*object header */
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H5AC_OHDR_CHK_ID, /*object header chunk */
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H5AC_BT2_HDR_ID, /*v2 B-tree header */
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H5AC_BT2_INT_ID, /*v2 B-tree internal node */
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H5AC_BT2_LEAF_ID, /*v2 B-tree leaf node */
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H5AC_FHEAP_HDR_ID, /*fractal heap header */
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H5AC_FHEAP_DBLOCK_ID, /*fractal heap direct block */
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H5AC_FHEAP_IBLOCK_ID, /*fractal heap indirect block */
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H5AC_FSPACE_HDR_ID, /*free space header */
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H5AC_FSPACE_SINFO_ID,/*free space sections */
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H5AC_SOHM_TABLE_ID, /*shared object header message master table */
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H5AC_SOHM_LIST_ID, /*shared message index stored as a list */
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H5AC_SUPERBLOCK_ID, /* file superblock */
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H5AC_TEST_ID, /*test entry -- not used for actual files */
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H5AC_NTYPES /* Number of types, must be last */
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} H5AC_type_t;
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/* H5AC_DUMP_STATS_ON_CLOSE should always be FALSE when
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* H5C_COLLECT_CACHE_STATS is FALSE.
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*
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* When H5C_COLLECT_CACHE_STATS is TRUE, H5AC_DUMP_STATS_ON_CLOSE must
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* be FALSE for "make check" to succeed, but may be set to TRUE at other
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* times for debugging purposes.
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*
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* Hence the following, somewhat odd set of #defines.
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*/
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#if H5C_COLLECT_CACHE_STATS
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#define H5AC_DUMP_STATS_ON_CLOSE 0
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#else /* H5C_COLLECT_CACHE_STATS */
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#define H5AC_DUMP_STATS_ON_CLOSE 0
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#endif /* H5C_COLLECT_CACHE_STATS */
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/* Default max metadata cache size and min clean size are give here.
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* At present, these are the same as those given in H5Cprivate.h.
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*/
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#define H5AC__DEFAULT_MAX_CACHE_SIZE H5C__DEFAULT_MAX_CACHE_SIZE
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#define H5AC__DEFAULT_MIN_CLEAN_SIZE H5C__DEFAULT_MIN_CLEAN_SIZE
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/*
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* Class methods pertaining to caching. Each type of cached object will
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* have a constant variable with permanent life-span that describes how
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* to cache the object. That variable will be of type H5AC_class_t and
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* have the following required fields...
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*
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* LOAD: Loads an object from disk to memory. The function
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* should allocate some data structure and return it.
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*
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* FLUSH: Writes some data structure back to disk. It would be
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* wise for the data structure to include dirty flags to
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* indicate whether it really needs to be written. This
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* function is also responsible for freeing memory allocated
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* by the LOAD method if the DEST argument is non-zero (by
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* calling the DEST method).
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*
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* DEST: Just frees memory allocated by the LOAD method.
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*
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* CLEAR: Just marks object as non-dirty.
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*
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* SIZE: Report the size (on disk) of the specified cache object.
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* Note that the space allocated on disk may not be contiguous.
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*/
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#define H5AC_CALLBACK__NO_FLAGS_SET H5C_CALLBACK__NO_FLAGS_SET
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#define H5AC_CALLBACK__SIZE_CHANGED_FLAG H5C_CALLBACK__SIZE_CHANGED_FLAG
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#define H5AC_CALLBACK__MOVED_FLAG H5C_CALLBACK__MOVED_FLAG
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typedef H5C_load_func_t H5AC_load_func_t;
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typedef H5C_flush_func_t H5AC_flush_func_t;
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typedef H5C_dest_func_t H5AC_dest_func_t;
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typedef H5C_clear_func_t H5AC_clear_func_t;
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typedef H5C_size_func_t H5AC_size_func_t;
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typedef H5C_class_t H5AC_class_t;
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/* The H5AC_NSLOTS #define is now obsolete, as the metadata cache no longer
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* uses slots. However I am leaving it in for now to avoid modifying the
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* interface between the metadata cache and the rest of HDF. It should
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* be removed when we get to dealing with the size_hint parameter in
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* H5AC_create().
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* JRM - 5/20/04
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*
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* Old comment on H5AC_NSLOTS follows:
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*
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* A cache has a certain number of entries. Objects are mapped into a
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* cache entry by hashing the object's file address. Each file has its
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* own cache, an array of slots.
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*/
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#define H5AC_NSLOTS 10330 /* The library "likes" this number... */
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typedef H5C_cache_entry_t H5AC_info_t;
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/*===----------------------------------------------------------------------===
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* Protect Types
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*===----------------------------------------------------------------------===
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*
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* These are for the wrapper functions to H5AC_protect. They specify what
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* type of operation you're planning on doing to the metadata. The
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* Flexible Parallel HDF5 locking can then act accordingly.
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*/
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typedef enum H5AC_protect_t {
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H5AC_WRITE, /* Protect object for writing */
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H5AC_READ /* Protect object for reading */
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} H5AC_protect_t;
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/* Typedef for metadata cache (defined in H5Cpkg.h) */
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typedef H5C_t H5AC_t;
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/* Metadata specific properties for FAPL */
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/* (Only used for parallel I/O) */
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#ifdef H5_HAVE_PARALLEL
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/* Definitions for "block before metadata write" property */
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#define H5AC_BLOCK_BEFORE_META_WRITE_NAME "H5AC_block_before_meta_write"
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#define H5AC_BLOCK_BEFORE_META_WRITE_SIZE sizeof(unsigned)
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#define H5AC_BLOCK_BEFORE_META_WRITE_DEF 0
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/* Definitions for "collective metadata write" property */
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#define H5AC_COLLECTIVE_META_WRITE_NAME "H5AC_collective_metadata_write"
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#define H5AC_COLLECTIVE_META_WRITE_SIZE sizeof(unsigned)
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#define H5AC_COLLECTIVE_META_WRITE_DEF 0
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/* Definitions for "library internal" property */
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#define H5AC_LIBRARY_INTERNAL_NAME "H5AC_library_internal"
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#define H5AC_LIBRARY_INTERNAL_SIZE sizeof(unsigned)
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#define H5AC_LIBRARY_INTERNAL_DEF 0
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#endif /* H5_HAVE_PARALLEL */
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/* Dataset transfer property list for flush calls */
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/* (Collective set, "block before metadata write" set and "library internal" set) */
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/* (Global variable declaration, definition is in H5AC.c) */
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extern hid_t H5AC_dxpl_id;
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/* Dataset transfer property list for independent metadata I/O calls */
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/* (just "library internal" set - i.e. independent transfer mode) */
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/* (Global variable declaration, definition is in H5AC.c) */
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extern hid_t H5AC_ind_dxpl_id;
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/* Default cache configuration. */
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#define H5AC__DEFAULT_METADATA_WRITE_STRATEGY \
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H5AC_METADATA_WRITE_STRATEGY__DISTRIBUTED
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#ifdef H5_HAVE_PARALLEL
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#define H5AC__DEFAULT_CACHE_CONFIG \
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{ \
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/* int version = */ H5AC__CURR_CACHE_CONFIG_VERSION, \
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/* hbool_t rpt_fcn_enabled = */ FALSE, \
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/* hbool_t open_trace_file = */ FALSE, \
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/* hbool_t close_trace_file = */ FALSE, \
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/* char trace_file_name[] = */ "", \
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/* hbool_t evictions_enabled = */ TRUE, \
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/* hbool_t set_initial_size = */ TRUE, \
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/* size_t initial_size = */ ( 2 * 1024 * 1024), \
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/* double min_clean_fraction = */ 0.3, \
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/* size_t max_size = */ (32 * 1024 * 1024), \
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/* size_t min_size = */ (1 * 1024 * 1024), \
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/* long int epoch_length = */ 50000, \
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/* enum H5C_cache_incr_mode incr_mode = */ H5C_incr__threshold, \
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/* double lower_hr_threshold = */ 0.9, \
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/* double increment = */ 2.0, \
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/* hbool_t apply_max_increment = */ TRUE, \
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/* size_t max_increment = */ (4 * 1024 * 1024), \
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/* enum H5C_cache_flash_incr_mode */ \
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/* flash_incr_mode = */ H5C_flash_incr__add_space, \
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/* double flash_multiple = */ 1.0, \
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/* double flash_threshold = */ 0.25, \
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/* enum H5C_cache_decr_mode decr_mode = */ H5C_decr__age_out_with_threshold, \
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/* double upper_hr_threshold = */ 0.999, \
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/* double decrement = */ 0.9, \
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/* hbool_t apply_max_decrement = */ TRUE, \
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/* size_t max_decrement = */ (1 * 1024 * 1024), \
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/* int epochs_before_eviction = */ 3, \
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/* hbool_t apply_empty_reserve = */ TRUE, \
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/* double empty_reserve = */ 0.1, \
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/* int dirty_bytes_threshold = */ (256 * 1024), \
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/* int metadata_write_strategy = */ \
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H5AC__DEFAULT_METADATA_WRITE_STRATEGY \
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}
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#else /* H5_HAVE_PARALLEL */
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#define H5AC__DEFAULT_CACHE_CONFIG \
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{ \
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/* int version = */ H5C__CURR_AUTO_SIZE_CTL_VER, \
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/* hbool_t rpt_fcn_enabled = */ FALSE, \
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/* hbool_t open_trace_file = */ FALSE, \
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/* hbool_t close_trace_file = */ FALSE, \
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/* char trace_file_name[] = */ "", \
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/* hbool_t evictions_enabled = */ TRUE, \
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/* hbool_t set_initial_size = */ TRUE, \
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/* size_t initial_size = */ ( 2 * 1024 * 1024), \
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/* double min_clean_fraction = */ 0.01, \
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/* size_t max_size = */ (32 * 1024 * 1024), \
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/* size_t min_size = */ ( 1 * 1024 * 1024), \
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/* long int epoch_length = */ 50000, \
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/* enum H5C_cache_incr_mode incr_mode = */ H5C_incr__threshold, \
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/* double lower_hr_threshold = */ 0.9, \
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/* double increment = */ 2.0, \
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/* hbool_t apply_max_increment = */ TRUE, \
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/* size_t max_increment = */ (4 * 1024 * 1024), \
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/* enum H5C_cache_flash_incr_mode */ \
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/* flash_incr_mode = */ H5C_flash_incr__add_space, \
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/* double flash_multiple = */ 1.4, \
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/* double flash_threshold = */ 0.25, \
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/* enum H5C_cache_decr_mode decr_mode = */ H5C_decr__age_out_with_threshold,\
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/* double upper_hr_threshold = */ 0.999, \
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/* double decrement = */ 0.9, \
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/* hbool_t apply_max_decrement = */ TRUE, \
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/* size_t max_decrement = */ (1 * 1024 * 1024), \
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/* int epochs_before_eviction = */ 3, \
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/* hbool_t apply_empty_reserve = */ TRUE, \
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/* double empty_reserve = */ 0.1, \
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/* int dirty_bytes_threshold = */ (256 * 1024), \
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/* int metadata_write_strategy = */ \
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H5AC__DEFAULT_METADATA_WRITE_STRATEGY \
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}
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#endif /* H5_HAVE_PARALLEL */
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/*
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* Library prototypes.
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*/
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/* #defines of flags used in the flags parameters in some of the
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* following function calls. Note that they are just copies of
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* the equivalent flags from H5Cprivate.h.
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*/
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#define H5AC__NO_FLAGS_SET H5C__NO_FLAGS_SET
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#define H5AC__SET_FLUSH_MARKER_FLAG H5C__SET_FLUSH_MARKER_FLAG
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#define H5AC__DELETED_FLAG H5C__DELETED_FLAG
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#define H5AC__DIRTIED_FLAG H5C__DIRTIED_FLAG
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#define H5AC__PIN_ENTRY_FLAG H5C__PIN_ENTRY_FLAG
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#define H5AC__UNPIN_ENTRY_FLAG H5C__UNPIN_ENTRY_FLAG
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#define H5AC__FLUSH_INVALIDATE_FLAG H5C__FLUSH_INVALIDATE_FLAG
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#define H5AC__FLUSH_CLEAR_ONLY_FLAG H5C__FLUSH_CLEAR_ONLY_FLAG
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#define H5AC__FLUSH_MARKED_ENTRIES_FLAG H5C__FLUSH_MARKED_ENTRIES_FLAG
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#define H5AC__FLUSH_IGNORE_PROTECTED_FLAG H5C__FLUSH_IGNORE_PROTECTED_FLAG
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#define H5AC__FREE_FILE_SPACE_FLAG H5C__FREE_FILE_SPACE_FLAG
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#define H5AC__TAKE_OWNERSHIP_FLAG H5C__TAKE_OWNERSHIP_FLAG
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/* #defines of flags used to report entry status in the
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* H5AC_get_entry_status() call.
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*/
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#define H5AC_ES__IN_CACHE 0x0001
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#define H5AC_ES__IS_DIRTY 0x0002
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#define H5AC_ES__IS_PROTECTED 0x0004
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#define H5AC_ES__IS_PINNED 0x0008
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/* external function declarations: */
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H5_DLL herr_t H5AC_init(void);
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H5_DLL herr_t H5AC_create(const H5F_t *f, H5AC_cache_config_t *config_ptr);
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H5_DLL herr_t H5AC_get_entry_status(const H5F_t *f, haddr_t addr,
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unsigned * status_ptr);
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H5_DLL herr_t H5AC_insert_entry(H5F_t *f, hid_t dxpl_id, const H5AC_class_t *type,
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haddr_t addr, void *thing, unsigned int flags);
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H5_DLL herr_t H5AC_pin_protected_entry(void *thing);
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H5_DLL void * H5AC_protect(H5F_t *f, hid_t dxpl_id, const H5AC_class_t *type,
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haddr_t addr, void *udata, H5AC_protect_t rw);
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H5_DLL herr_t H5AC_resize_entry(void *thing, size_t new_size);
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H5_DLL herr_t H5AC_unpin_entry(void *thing);
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H5_DLL herr_t H5AC_unprotect(H5F_t *f, hid_t dxpl_id,
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const H5AC_class_t *type, haddr_t addr,
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void *thing, unsigned flags);
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H5_DLL herr_t H5AC_flush(H5F_t *f, hid_t dxpl_id);
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H5_DLL herr_t H5AC_mark_entry_dirty(void *thing);
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H5_DLL herr_t H5AC_move_entry(H5F_t *f, const H5AC_class_t *type,
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haddr_t old_addr, haddr_t new_addr);
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H5_DLL herr_t H5AC_dest(H5F_t *f, hid_t dxpl_id);
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H5_DLL herr_t H5AC_expunge_entry(H5F_t *f, hid_t dxpl_id,
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const H5AC_class_t *type, haddr_t addr,
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unsigned flags);
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H5_DLL herr_t H5AC_set_sync_point_done_callback(H5C_t *cache_ptr,
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void (*sync_point_done)(int num_writes, haddr_t *written_entries_tbl));
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H5_DLL herr_t H5AC_set_write_done_callback(H5C_t * cache_ptr,
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void (* write_done)(void));
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H5_DLL herr_t H5AC_stats(const H5F_t *f);
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H5_DLL herr_t H5AC_dump_cache(const H5F_t *f);
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H5_DLL herr_t H5AC_get_cache_auto_resize_config(const H5AC_t * cache_ptr,
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H5AC_cache_config_t *config_ptr);
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H5_DLL herr_t H5AC_get_cache_size(H5AC_t * cache_ptr,
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size_t * max_size_ptr,
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size_t * min_clean_size_ptr,
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size_t * cur_size_ptr,
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int32_t * cur_num_entries_ptr);
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H5_DLL herr_t H5AC_get_cache_hit_rate(H5AC_t * cache_ptr,
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double * hit_rate_ptr);
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H5_DLL herr_t H5AC_reset_cache_hit_rate_stats(H5AC_t * cache_ptr);
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H5_DLL herr_t H5AC_set_cache_auto_resize_config(H5AC_t *cache_ptr,
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H5AC_cache_config_t *config_ptr);
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H5_DLL herr_t H5AC_validate_config(H5AC_cache_config_t * config_ptr);
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H5_DLL herr_t H5AC_close_trace_file( H5AC_t * cache_ptr);
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H5_DLL herr_t H5AC_open_trace_file(H5AC_t * cache_ptr,
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const char * trace_file_name);
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#ifdef H5_HAVE_PARALLEL
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H5_DLL herr_t H5AC_add_candidate(H5AC_t * cache_ptr, haddr_t addr);
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#endif /* H5_HAVE_PARALLEL */
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#endif /* !_H5ACprivate_H */
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