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291 lines
9.1 KiB
C
291 lines
9.1 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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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: swmr_common.c
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*
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* Purpose: Utility functions for the SWMR test code.
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*
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*-------------------------------------------------------------------------
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*/
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/***********/
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/* Headers */
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/***********/
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#include "h5test.h"
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#include "swmr_common.h"
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/*******************/
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/* Local Variables */
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/*******************/
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/* The SWMR data arrays:
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*
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* The code uses a 2-D jagged array of datasets. The first dimension is called
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* the 'level' and there are five of them.
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*
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* #define NLEVELS 5
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*
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* The second dimension is the 'count' and there are quite a few datasets per
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* 'level'.
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*
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* unsigned symbol_count[NLEVELS] = {100, 200, 400, 800, 1600};
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*
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* These datasets are created when the skeleton is generated and are initially
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* empty. Each dataset has no upper bound on size (H5S_UNLIMITED). They
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* are of compound type, with two members: an integer ID and an opaque
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* 'data part'. The data part is not used by the SWMR testing.
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*
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* The SWMR testing will then randomly add and/or remove entries
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* from these datasets. The selection of the level is skewed by a mapping
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* table which preferentially hammers on the lower levels with their smaller
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* number of datasets.
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*
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* static unsigned symbol_mapping[NMAPPING] = {0, 0, 0, 0, 1, 1, 2, 3, 4};
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*
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* The information about each dataset (name, hid_t, etc.) is stored in a
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* separate array.
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*
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* symbol_info_t *symbol_info[NLEVELS];
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*/
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/* An array of dataset levels, used to select the level for a SWMR operation
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* Note that this preferentially selects the lower levels with their smaller
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* number of datasets.
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*/
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static unsigned symbol_mapping[NMAPPING] = {0, 0, 0, 0, 1, 1, 2, 3, 4};
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/* The number of datasets at each level */
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unsigned symbol_count[NLEVELS] = {100, 200, 400, 800, 1600};
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/* Array of dataset information entries (1 per dataset) */
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symbol_info_t *symbol_info[NLEVELS];
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/*-------------------------------------------------------------------------
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* Function: choose_dataset
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*
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* Purpose: Selects a random dataset in the SWMR file
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*
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* Parameters: N/A
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*
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* Return: Success: A pointer to information about a dataset.
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* Failure: Can't fail
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*
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*-------------------------------------------------------------------------
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*/
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symbol_info_t *
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choose_dataset(void)
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{
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unsigned level; /* The level of the dataset */
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unsigned offset; /* The "offset" of the dataset at that level */
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/* Determine level of dataset */
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level = symbol_mapping[HDrandom() % NMAPPING];
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/* Determine the offset of the level */
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offset = (unsigned)(HDrandom() % (int)symbol_count[level]);
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return &symbol_info[level][offset];
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} /* end choose_dataset() */
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/*-------------------------------------------------------------------------
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* Function: create_symbol_datatype
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*
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* Purpose: Create's the HDF5 datatype used for elements in the SWMR
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* testing datasets.
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*
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* Parameters: N/A
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*
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* Return: Success: An HDF5 type ID
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* Failure: -1
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*
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*-------------------------------------------------------------------------
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*/
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hid_t
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create_symbol_datatype(void)
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{
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hid_t sym_type_id; /* Datatype ID for symbol */
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hid_t opaq_type_id; /* Datatype ID for opaque part of record */
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/* Create opaque datatype to represent other information for this record */
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if((opaq_type_id = H5Tcreate(H5T_OPAQUE, (size_t)DTYPE_SIZE)) < 0)
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return -1;
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/* Create compound datatype for symbol */
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if((sym_type_id = H5Tcreate(H5T_COMPOUND, sizeof(symbol_t))) < 0)
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return -1;
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/* Insert fields in symbol datatype */
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if(H5Tinsert(sym_type_id, "rec_id", HOFFSET(symbol_t, rec_id), H5T_NATIVE_UINT64) < 0)
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return -1;
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if(H5Tinsert(sym_type_id, "info", HOFFSET(symbol_t, info), opaq_type_id) < 0)
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return -1;
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/* Close opaque datatype */
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if(H5Tclose(opaq_type_id) < 0)
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return -1;
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return sym_type_id;
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} /* end create_symbol_datatype() */
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/*-------------------------------------------------------------------------
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* Function: generate_name
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*
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* Purpose: Generates a SWMR testing dataset name given a level and
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* count.
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* The name is in the format <name>-<level> (%u-%04u).
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*
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* Parameters: char *name_buf
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* Buffer for the created name. Must be pre-allocated.
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* Since the name is formulaic, this isn't considered an issue.
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*
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* unsigned level
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* The dataset's level
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*
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* unsigned count
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* The dataset's count
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*
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* Return: Success: 0
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*
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* Failure: Can't fail
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*
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*-------------------------------------------------------------------------
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*/
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int
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generate_name(char *name_buf, unsigned level, unsigned count)
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{
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HDassert(name_buf);
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sprintf(name_buf, "%u-%04u", level, count);
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return 0;
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} /* end generate_name() */
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/*-------------------------------------------------------------------------
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* Function: generate_symbols
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*
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* Purpose: Initializes the global dataset infomration arrays.
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*
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* Parameters: N/A
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*
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* Return: Success: 0
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* Failure: Can't fail
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*
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*-------------------------------------------------------------------------
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*/
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int
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generate_symbols(void)
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{
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unsigned u, v; /* Local index variables */
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for(u = 0; u < NLEVELS; u++) {
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symbol_info[u] = (symbol_info_t *)HDmalloc(symbol_count[u] * sizeof(symbol_info_t));
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for(v = 0; v < symbol_count[u]; v++) {
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char name_buf[64];
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generate_name(name_buf, u, v);
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symbol_info[u][v].name = (char *)HDmalloc(HDstrlen(name_buf) + 1);
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HDstrcpy(symbol_info[u][v].name, name_buf);
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symbol_info[u][v].dsid = -1;
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symbol_info[u][v].nrecords = 0;
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} /* end for */
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} /* end for */
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return 0;
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} /* end generate_symbols() */
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/*-------------------------------------------------------------------------
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* Function: shutdown_symbols
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*
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* Purpose: Cleans up the global dataset information arrays.
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*
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* Parameters: N/A
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*
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* Return: Success: 0
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* Failure: Can't fail
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*
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*-------------------------------------------------------------------------
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*/
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int
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shutdown_symbols(void)
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{
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unsigned u, v; /* Local index variables */
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/* Clean up the symbols */
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for(u = 0; u < NLEVELS; u++) {
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for(v = 0; v < symbol_count[u]; v++)
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HDfree(symbol_info[u][v].name);
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HDfree(symbol_info[u]);
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} /* end for */
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return 0;
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} /* end shutdown_symbols() */
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/*-------------------------------------------------------------------------
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* Function: print_metadata_retries_info
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*
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* Purpose: To retrieve and print the collection of metadata retries for the file.
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*
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* Parameters: fid: the currently opened file identifier
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*
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* Return: Success: 0
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* Failure: negative
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*
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*-------------------------------------------------------------------------
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*/
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int
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print_metadata_retries_info(hid_t fid)
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{
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H5F_retry_info_t info;
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unsigned i;
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/* Retrieve the collection of retries */
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if(H5Fget_metadata_read_retry_info(fid, &info) < 0)
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return (-1);
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/* Print information for each non-NULL retries[i] */
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for(i = 0; i < H5F_NUM_METADATA_READ_RETRY_TYPES; i++) {
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unsigned power;
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unsigned j;
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if(NULL == info.retries[i])
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continue;
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HDfprintf(stderr, "Metadata read retries for item %u:\n", i);
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power = 1;
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for(j = 0; j < info.nbins; j++) {
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if(info.retries[i][j])
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HDfprintf(stderr, "\t# of retries for %u - %u retries: %u\n",
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power, (power * 10) - 1, info.retries[i][j]);
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power *= 10;
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} /* end for */
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} /* end for */
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/* Free memory for each non-NULL retries[i] */
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for(i = 0; i < H5F_NUM_METADATA_READ_RETRY_TYPES; i++)
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if(info.retries[i] != NULL)
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H5free_memory(info.retries[i]);
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return 0;
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} /* print_metadata_retries_info() */
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