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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5AC2private.h
* Jul 9 1997
* Robb Matzke <matzke@llnl.gov>
*
* Purpose: Constants and typedefs available to the rest of the
* library.
*
* Modifications: JRM - 6/4/04
* Complete re-write for a new caching algorithm
* located in H5C.c
*
* JRM - 10/18/07
* Copied H5ACprivate.h to H5AC2private.h and reworked
* to use H5C2 instead of H5C. All this is in support
* of cache API modifications needed for journaling.
*
*-------------------------------------------------------------------------
*/
#ifndef _H5AC2private_H
#define _H5AC2private_H
#include "H5AC2public.h" /*public prototypes */
/* Pivate headers needed by this header */
#include "H5private.h" /* Generic Functions */
#include "H5C2private.h" /* Cache */
#include "H5Fprivate.h" /* File access */
#ifdef H5_METADATA_TRACE_FILE
#define H5AC2__TRACE_FILE_ENABLED 1
#else /* H5_METADATA_TRACE_FILE */
#define H5AC2__TRACE_FILE_ENABLED 0
#endif /* H5_METADATA_TRACE_FILE */
/* Types of metadata objects cached */
typedef enum {
H5AC2_BT_ID = 0, /*B-tree nodes */
H5AC2_SNODE_ID, /*symbol table nodes */
H5AC2_LHEAP_ID, /*local heap */
H5AC2_GHEAP_ID, /*global heap */
H5AC2_OHDR_ID, /*object header */
H5AC2_OHDR_CHK_ID, /*object header chunk */
H5AC2_BT2_HDR_ID, /*v2 B-tree header */
H5AC2_BT2_INT_ID, /*v2 B-tree internal node */
H5AC2_BT2_LEAF_ID, /*v2 B-tree leaf node */
H5AC2_FHEAP_HDR_ID, /*fractal heap header */
H5AC2_FHEAP_DBLOCK_ID,/*fractal heap direct block */
H5AC2_FHEAP_IBLOCK_ID,/*fractal heap indirect block */
H5AC2_FSPACE_HDR_ID, /*free space header */
H5AC2_FSPACE_SINFO_ID,/*free space sections */
H5AC2_SOHM_TABLE_ID, /*shared object header message master table */
H5AC2_SOHM_LIST_ID, /*shared message index stored as a list */
H5AC2_TEST_ID, /*test entry -- not used for actual files */
H5AC2_NTYPES /* Number of types, must be last */
} H5AC2_type_t;
/* H5AC2_DUMP_STATS_ON_CLOSE should always be FALSE when
* H5C2_COLLECT_CACHE_STATS is FALSE.
*
* When H5C2_COLLECT_CACHE_STATS is TRUE, H5AC2_DUMP_STATS_ON_CLOSE must
* be FALSE for "make check" to succeed, but may be set to TRUE at other
* times for debugging purposes.
*
* Hence the following, somewhat odd set of #defines.
*/
#if H5C2_COLLECT_CACHE_STATS
#define H5AC2_DUMP_STATS_ON_CLOSE 0
#else /* H5C2_COLLECT_CACHE_STATS */
#define H5AC2_DUMP_STATS_ON_CLOSE 0
#endif /* H5C2_COLLECT_CACHE_STATS */
/* Default max metadata cache size and min clean size are give here.
* At present, these are the same as those given in H5C2private.h.
*/
#define H5AC2__DEFAULT_MAX_CACHE_SIZE H5C2__DEFAULT_MAX_CACHE_SIZE
#define H5AC2__DEFAULT_MIN_CLEAN_SIZE H5C2__DEFAULT_MIN_CLEAN_SIZE
/*
* Class methods pertaining to caching. Each type of cached object will
* have a constant variable with permanent life-span that describes how
* to cache the object. That variable will be of type H5AC2_class_t and
* have the following required fields...
*
* LOAD: Loads an object from disk to memory. The function
* should allocate some data structure and return it.
*
* FLUSH: Writes some data structure back to disk. It would be
* wise for the data structure to include dirty flags to
* indicate whether it really needs to be written. This
* function is also responsible for freeing memory allocated
* by the LOAD method if the DEST argument is non-zero (by
* calling the DEST method).
*
* DEST: Just frees memory allocated by the LOAD method.
*
* CLEAR: Just marks object as non-dirty.
*
* SIZE: Report the size (on disk) of the specified cache object.
* Note that the space allocated on disk may not be contiguous.
*/
#define H5AC2__SERIALIZE_RESIZED_FLAG H5C2__SERIALIZE_RESIZED_FLAG
#define H5AC2__SERIALIZE_RENAMED_FLAG H5C2__SERIALIZE_RENAMED_FLAG
typedef H5C2_deserialize_func_t H5AC2_deserialize_func_t;
typedef H5C2_image_len_func_t H5AC2_image_len_func_t;
typedef H5C2_serialize_func_t H5AC2_serialize_func_t;
typedef H5C2_free_icr_func_t H5AC2_free_icr_func_t;
typedef H5C2_clear_dirty_bits_func_t H5AC2_clear_dirty_bits_func_t;
typedef H5C2_class_t H5AC2_class_t;
typedef H5C2_cache_entry_t H5AC2_info_t;
/*===----------------------------------------------------------------------===
* Protect Types
*===----------------------------------------------------------------------===
*
* These are for the wrapper functions to H5AC2_protect. They specify what
* type of operation you're planning on doing to the metadata. The
* Flexible Parallel HDF5 locking can then act accordingly.
*/
typedef enum H5AC2_protect_t {
H5AC2_WRITE, /* Protect object for writing */
H5AC2_READ /* Protect object for reading */
} H5AC2_protect_t;
/* Typedef for metadata cache (defined in H5C2pkg.h) */
typedef H5C2_t H5AC2_t;
/* Metadata specific properties for FAPL */
/* (Only used for parallel I/O) */
#ifdef H5_HAVE_PARALLEL
/* Definitions for "block before metadata write" property */
#define H5AC2_BLOCK_BEFORE_META_WRITE_NAME "H5AC2_block_before_meta_write"
#define H5AC2_BLOCK_BEFORE_META_WRITE_SIZE sizeof(unsigned)
#define H5AC2_BLOCK_BEFORE_META_WRITE_DEF 0
/* Definitions for "library internal" property */
#define H5AC2_LIBRARY_INTERNAL_NAME "H5AC2_library_internal"
#define H5AC2_LIBRARY_INTERNAL_SIZE sizeof(unsigned)
#define H5AC2_LIBRARY_INTERNAL_DEF 0
#endif /* H5_HAVE_PARALLEL */
/* Dataset transfer property list for flush calls */
/* (Collective set, "block before metadata write" set and "library internal" set) */
/* (Global variable declaration, definition is in H5AC2.c) */
extern hid_t H5AC2_dxpl_id;
/* Dataset transfer property list for independent metadata I/O calls */
/* (just "library internal" set - i.e. independent transfer mode) */
/* (Global variable declaration, definition is in H5AC2.c) */
extern hid_t H5AC2_ind_dxpl_id;
/* Cache config field limit #defines */
#define H5AC2__MIN_JBRB_BUF_SIZE H5C2__MIN_JBRB_BUF_SIZE
#define H5AC2__MAX_JBRB_BUF_SIZE H5C2__MAX_JBRB_BUF_SIZE
#define H5AC2__MIN_JBRB_NUM_BUFS H5C2__MIN_JBRB_NUM_BUFS
#define H5AC2__MAX_JBRB_NUM_BUFS H5C2__MAX_JBRB_NUM_BUFS
/* Default cache configuration. */
#define H5AC2__DEFAULT_CACHE_CONFIG \
{ \
/* int version = */ \
H5AC2__CURR_CACHE_CONFIG_VERSION, \
/* hbool_t rpt_fcn_enabled = */ FALSE, \
/* hbool_t open_trace_file = */ FALSE, \
/* hbool_t close_trace_file = */ FALSE, \
/* char trace_file_name[] = */ "", \
/* hbool_t evictions_enabled = */ TRUE, \
/* hbool_t set_initial_size = */ TRUE, \
/* size_t initial_size = */ ( 1 * 1024 * 1024 ), \
/* double min_clean_fraction = */ 0.5, \
/* size_t max_size = */ (16 * 1024 * 1024 ), \
/* size_t min_size = */ ( 1 * 1024 * 1024 ), \
/* long int epoch_length = */ 50000, \
/* enum H5C2_cache_incr_mode incr_mode = */ H5C2_incr__threshold, \
/* double lower_hr_threshold = */ 0.9, \
/* double increment = */ 2.0, \
/* hbool_t apply_max_increment = */ TRUE, \
/* size_t max_increment = */ (4 * 1024 * 1024), \
/* enum H5C2_cache_flash_incr_mode */ \
/* flash_incr_mode = */ H5C2_flash_incr__add_space, \
/* double flash_multiple = */ 1.0, \
/* double flash_threshold = */ 0.25, \
/* enum H5C2_cache_decr_mode decr_mode = */ \
H5C2_decr__age_out_with_threshold, \
/* double upper_hr_threshold = */ 0.999, \
/* double decrement = */ 0.9, \
/* hbool_t apply_max_decrement = */ TRUE, \
/* size_t max_decrement = */ (1 * 1024 * 1024), \
/* int epochs_before_eviction = */ 3, \
/* hbool_t apply_empty_reserve = */ TRUE, \
/* double empty_reserve = */ 0.1, \
/* int dirty_bytes_threshold = */ (256 * 1024) \
}
/* Default journal configuration. */
#define H5AC2__DEFAULT_JNL_CONFIG \
{ \
/* int version = */ H5AC2__CURR_JNL_CONFIG_VER, \
/* hbool_t enable_journaling = */ FALSE, \
/* char journal_file_path[] = */ "", \
/* hbool_t journal_recovered = */ FALSE, \
/* size_t jbrb_buf_size = */ (8 * 1024), \
/* int jbrb_num_bufs = */ 2, \
/* hbool_t jbrb_use_aio = */ FALSE, \
/* hbool_t jbrb_human_readable = */ TRUE \
}
/*
* Library prototypes.
*/
/* #defines of flags used in the flags parameters in some of the
* following function calls. Note that they are just copies of
* the equivalent flags from H5C2private.h.
*/
#define H5AC2__NO_FLAGS_SET H5C2__NO_FLAGS_SET
#define H5AC2__SET_FLUSH_MARKER_FLAG H5C2__SET_FLUSH_MARKER_FLAG
#define H5AC2__DELETED_FLAG H5C2__DELETED_FLAG
#define H5AC2__DIRTIED_FLAG H5C2__DIRTIED_FLAG
#define H5AC2__SIZE_CHANGED_FLAG H5C2__SIZE_CHANGED_FLAG
#define H5AC2__PIN_ENTRY_FLAG H5C2__PIN_ENTRY_FLAG
#define H5AC2__UNPIN_ENTRY_FLAG H5C2__UNPIN_ENTRY_FLAG
#define H5AC2__FLUSH_INVALIDATE_FLAG H5C2__FLUSH_INVALIDATE_FLAG
#define H5AC2__FLUSH_CLEAR_ONLY_FLAG H5C2__FLUSH_CLEAR_ONLY_FLAG
#define H5AC2__FLUSH_MARKED_ENTRIES_FLAG H5C2__FLUSH_MARKED_ENTRIES_FLAG
#define H5AC2__FLUSH_IGNORE_PROTECTED_FLAG H5C2__FLUSH_IGNORE_PROTECTED_FLAG
/* #defines of flags used to report entry status in the
* H5AC2_get_entry_status() call.
*/
#define H5AC2_ES__IN_CACHE 0x0001
#define H5AC2_ES__IS_DIRTY 0x0002
#define H5AC2_ES__IS_PROTECTED 0x0004
#define H5AC2_ES__IS_PINNED 0x0008
/* Forward declaration of structs used below */
struct H5O_loc_t; /* Defined in H5Oprivate.h */
/* external function declarations: */
H5_DLL herr_t H5AC2_init(void);
H5_DLL herr_t H5AC2_check_for_journaling(H5F_t * f,
hid_t dxpl_id,
H5C2_t * cache_ptr,
hbool_t journal_recovered);
H5_DLL herr_t H5AC2_create(H5F_t *f,
H5AC2_cache_config_t *config_ptr);
H5_DLL herr_t H5AC2_begin_transaction(hid_t id,
hbool_t * do_transaction_ptr,
struct H5O_loc_t * id_oloc_ptr,
hbool_t * id_oloc_open_ptr,
hbool_t * transaction_begun_ptr,
uint64_t * trans_num_ptr,
const char * api_call_name);
H5_DLL herr_t H5AC2_end_transaction(hbool_t do_transaction,
struct H5O_loc_t * id_oloc_ptr,
hbool_t id_oloc_open,
hbool_t transaction_begun,
uint64_t trans_num,
const char * api_call_name);
H5_DLL herr_t H5AC2_get_entry_status(H5F_t * f, haddr_t addr,
unsigned * status_ptr);
H5_DLL herr_t H5AC2_set(H5F_t *f, hid_t dxpl_id, const H5AC2_class_t *type,
haddr_t addr, size_t len, void *thing,
unsigned int flags);
H5_DLL herr_t H5AC2_pin_protected_entry(void * thing);
H5_DLL void * H5AC2_protect(H5F_t *f, hid_t dxpl_id, const H5AC2_class_t *type,
haddr_t addr, size_t len, void *udata,
H5AC2_protect_t rw);
H5_DLL herr_t H5AC2_resize_pinned_entry(void * thing,
size_t new_size);
H5_DLL herr_t H5AC2_unpin_entry(void * thing);
H5_DLL herr_t H5AC2_unprotect(H5F_t *f, hid_t dxpl_id,
const H5AC2_class_t *type, haddr_t addr,
size_t new_size, void *thing, unsigned flags);
H5_DLL herr_t H5AC2_flush(H5F_t *f, hid_t dxpl_id, unsigned flags);
H5_DLL herr_t H5AC2_mark_pinned_entry_dirty(void * thing,
hbool_t size_changed,
size_t new_size);
H5_DLL herr_t H5AC2_mark_pinned_or_protected_entry_dirty(void * thing);
H5_DLL herr_t H5AC2_rename(H5F_t *f, const H5AC2_class_t *type,
haddr_t old_addr, haddr_t new_addr);
H5_DLL herr_t H5AC2_dest(H5F_t *f, hid_t dxpl_id);
H5_DLL herr_t H5AC2_expunge_entry(H5F_t *f, hid_t dxpl_id,
const H5AC2_class_t *type, haddr_t addr);
H5_DLL herr_t H5AC2_set_write_done_callback(H5C2_t * cache_ptr,
void (* write_done)(void));
H5_DLL herr_t H5AC2_stats(const H5F_t *f);
H5_DLL herr_t H5AC2_get_cache_auto_resize_config(H5AC2_t * cache_ptr,
H5AC2_cache_config_t *config_ptr);
H5_DLL herr_t H5AC2_get_cache_size(H5AC2_t * cache_ptr,
size_t * max_size_ptr,
size_t * min_clean_size_ptr,
size_t * cur_size_ptr,
int32_t * cur_num_entries_ptr);
H5_DLL herr_t H5AC2_get_cache_hit_rate(H5AC2_t * cache_ptr,
double * hit_rate_ptr);
H5_DLL herr_t H5AC2_get_jnl_config(H5AC2_t * cache_ptr,
H5AC2_jnl_config_t * config_ptr);
H5_DLL herr_t H5AC2_reset_cache_hit_rate_stats(H5AC2_t * cache_ptr);
H5_DLL herr_t H5AC2_set_cache_auto_resize_config(H5F_t * f,
H5AC2_cache_config_t *config_ptr);
H5_DLL herr_t H5AC2_set_jnl_config(H5F_t * f,
hid_t dxpl_id,
H5AC2_jnl_config_t *config_ptr);
H5_DLL herr_t H5AC2_validate_config(H5AC2_cache_config_t * config_ptr);
H5_DLL herr_t H5AC2_validate_jnl_config(H5AC2_jnl_config_t * config_ptr);
H5_DLL herr_t H5AC2_close_trace_file(H5AC2_t * cache_ptr);
H5_DLL herr_t H5AC2_open_trace_file(H5AC2_t * cache_ptr,
const char * trace_file_name);
#endif /* !_H5AC2private_H */
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