489 lines
15 KiB
C
489 lines
15 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 COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*-------------------------------------------------------------------------
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*
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* Created: vfd_swmr_sparse_writer.c
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* (copied and modified from swmr_sparse_writer.c)
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*
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* Purpose: Writes data to a randomly selected subset of the datasets
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* in the VFD_SWMR test file.
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*
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* This program is intended to run concurrently with the
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* vfd_swmr_sparse_reader program.
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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 <err.h>
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#include <signal.h>
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#include "h5test.h"
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#include "vfd_swmr_common.h"
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/****************/
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/* Local Macros */
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/****************/
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#ifdef OUT
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#define BUSY_WAIT 100000
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#endif /* OUT */
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/********************/
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/* Local Prototypes */
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/********************/
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static hid_t open_skeleton(const char *filename, unsigned verbose);
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static int add_records(hid_t fid, unsigned verbose, unsigned long nrecords,
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unsigned long flush_count);
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static void usage(void);
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/*-------------------------------------------------------------------------
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* Function: open_skeleton
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*
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* Purpose: Opens the SWMR HDF5 file and datasets.
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*
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* Parameters: const char *filename
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* The filename of the SWMR HDF5 file to open
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*
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* unsigned verbose
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* Whether or not to emit verbose console messages
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*
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* Return: Success: The file ID of the opened SWMR file
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* The dataset IDs are stored in a global array
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*
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* Failure: -1
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*
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*-------------------------------------------------------------------------
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*/
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static hid_t
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open_skeleton(const char *filename, unsigned verbose)
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{
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hid_t fid = -1; /* File ID for new HDF5 file */
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hid_t fapl = -1; /* File access property list */
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hid_t aid = -1; /* Attribute ID */
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unsigned seed; /* Seed for random number generator */
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unsigned u, v; /* Local index variable */
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H5F_vfd_swmr_config_t *config = NULL; /* Configuration for VFD SWMR */
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HDassert(filename);
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/* Create file access property list */
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if((fapl = h5_fileaccess()) < 0)
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goto error;
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/* Set to use the latest library format */
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if(H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
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goto error;
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/*
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* Set up to open the file with VFD SWMR configured.
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*/
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/* Enable page buffering */
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if(H5Pset_page_buffer_size(fapl, 4096, 0, 0) < 0)
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goto error;
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/* Allocate memory for the configuration structure */
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if((config = (H5F_vfd_swmr_config_t *)HDcalloc(1, sizeof(H5F_vfd_swmr_config_t))) == NULL)
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goto error;
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config->version = H5F__CURR_VFD_SWMR_CONFIG_VERSION;
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config->tick_len = 4;
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config->max_lag = 5;
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config->writer = TRUE;
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config->md_pages_reserved = 128;
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HDstrcpy(config->md_file_path, "./my_md_file");
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/* Enable VFD SWMR configuration */
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if(H5Pset_vfd_swmr_config(fapl, config) < 0)
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goto error;
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/* Open the file */
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if((fid = H5Fopen(filename, H5F_ACC_RDWR, fapl)) < 0)
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goto error;
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/* Close file access property list */
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if(H5Pclose(fapl) < 0)
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goto error;
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if(config)
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HDfree(config);
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/* Emit informational message */
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if(verbose)
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fprintf(stderr, "WRITER: Opening datasets\n");
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/* Seed the random number generator with the attribute in the file */
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if((aid = H5Aopen(fid, "seed", H5P_DEFAULT)) < 0)
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goto error;
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if(H5Aread(aid, H5T_NATIVE_UINT, &seed) < 0)
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goto error;
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if(H5Aclose(aid) < 0)
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goto error;
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HDsrandom(seed);
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/* Open the datasets */
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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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if((symbol_info[u][v].dsid = H5Dopen2(fid, symbol_info[u][v].name, H5P_DEFAULT)) < 0)
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return(-1);
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symbol_info[u][v].nrecords = 0;
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} /* end for */
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return fid;
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error:
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if(config)
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HDfree(config);
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H5E_BEGIN_TRY {
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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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H5Dclose(symbol_info[u][v].dsid);
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H5Aclose(aid);
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H5Pclose(fapl);
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H5Fclose(fid);
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} H5E_END_TRY;
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return -1;
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} /* open_skeleton() */
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/*-------------------------------------------------------------------------
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* Function: add_records
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*
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* Purpose: Writes a specified number of records to random datasets in
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* the SWMR test file.
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*
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* Parameters: hid_t fid
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* The file ID of the SWMR HDF5 file
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*
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* unsigned verbose
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* Whether or not to emit verbose console messages
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*
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* unsigned long nrecords
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* # of records to write to the datasets
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*
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* unsigned long flush_count
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* # of records to write before flushing the file to disk
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*
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* Return: Success: 0
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* Failure: -1
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*
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*-------------------------------------------------------------------------
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*/
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static int
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add_records(hid_t fid, unsigned verbose, unsigned long nrecords, unsigned long flush_count)
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{
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hid_t tid = -1; /* Datatype ID for records */
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hid_t mem_sid = -1; /* Memory dataspace ID */
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hid_t file_sid = -1; /* Dataset's space ID */
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hid_t aid = -1; /* Attribute ID */
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hsize_t start[2] = {0, 0}; /* Hyperslab selection values */
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hsize_t count[2] = {1, 1}; /* Hyperslab selection values */
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symbol_t record; /* The record to add to the dataset */
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unsigned long rec_to_flush; /* # of records left to write before flush */
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#ifdef OUT
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volatile int dummy; /* Dummy varialbe for busy sleep */
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#endif /* OUT */
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hsize_t dim[2] = {1,0}; /* Dataspace dimensions */
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unsigned long u, v; /* Local index variables */
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HDassert(fid >= 0);
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/* Reset the record */
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/* (record's 'info' field might need to change for each record written, also) */
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HDmemset(&record, 0, sizeof(record));
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/* Create a dataspace for the record to add */
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if((mem_sid = H5Screate(H5S_SCALAR)) < 0)
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goto error;
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/* Create datatype for appending records */
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if((tid = create_symbol_datatype()) < 0)
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goto error;
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/* Add records to random datasets, according to frequency distribution */
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rec_to_flush = flush_count;
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for(u = 0; u < nrecords; u++) {
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symbol_info_t *symbol; /* Symbol to write record to */
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/* Get a random dataset, according to the symbol distribution */
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symbol = choose_dataset(NULL, NULL);
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/* If this is the first time the dataset has been opened, extend it and
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* add the sequence attribute */
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if(symbol->nrecords == 0) {
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symbol->nrecords = nrecords / 5;
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dim[1] = symbol->nrecords;
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if(H5Dset_extent(symbol->dsid, dim) < 0)
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goto error;
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if((file_sid = H5Screate(H5S_SCALAR)) < 0)
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goto error;
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if((aid = H5Acreate2(symbol->dsid, "seq", H5T_NATIVE_ULONG, file_sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
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goto error;
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if(H5Sclose(file_sid) < 0)
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goto error;
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} else if ((aid = H5Aopen(symbol->dsid, "seq", H5P_DEFAULT)) < 0)
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goto error;
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/* Get the coordinate to write */
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start[1] = (hsize_t)HDrandom() % symbol->nrecords;
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/* Set the record's ID (equal to its position) */
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record.rec_id = start[1];
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/* Get the dataset's dataspace */
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if((file_sid = H5Dget_space(symbol->dsid)) < 0)
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goto error;
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/* Choose a random record in the dataset */
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if(H5Sselect_hyperslab(file_sid, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
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goto error;
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/* Write record to the dataset */
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if(H5Dwrite(symbol->dsid, tid, mem_sid, file_sid, H5P_DEFAULT, &record) < 0)
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goto error;
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/* Write the sequence number attribute. Since we synchronize the random
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* number seed, the readers will always generate the same sequence of
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* randomly chosen datasets and offsets. Therefore, and because of the
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* flush dependencies on the object header, the reader will be
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* guaranteed to see the written data if the sequence attribute is >=u.
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*/
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if(H5Awrite(aid, H5T_NATIVE_ULONG, &u) < 0)
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goto error;
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/* Close the attribute */
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if(H5Aclose(aid) < 0)
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goto error;
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/* Close the dataset's dataspace */
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if(H5Sclose(file_sid) < 0)
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goto error;
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/* Check for flushing file */
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if(flush_count > 0) {
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/* Decrement count of records to write before flushing */
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rec_to_flush--;
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/* Check for counter being reached */
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if(0 == rec_to_flush) {
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#ifdef TEMP_OUT
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/* Flush contents of file */
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if(H5Fflush(fid, H5F_SCOPE_GLOBAL) < 0)
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return -1;
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#endif
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/* Reset flush counter */
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rec_to_flush = flush_count;
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} /* end if */
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} /* end if */
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#ifdef OUT
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/* Busy wait, to let readers catch up */
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/* If this is removed, also remove the BUSY_WAIT symbol
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* at the top of the file.
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*/
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dummy = 0;
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for(v=0; v<BUSY_WAIT; v++)
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dummy++;
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if((unsigned long)dummy != v)
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return -1;
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#endif /* OUT */
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} /* end for */
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/* Close the memory dataspace */
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if(H5Sclose(mem_sid) < 0)
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goto error;
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/* Close the datatype */
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if(H5Tclose(tid) < 0)
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goto error;
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/* Emit informational message */
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if(verbose)
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fprintf(stderr, "WRITER: Closing datasets\n");
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/* Close the datasets */
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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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if(H5Dclose(symbol_info[u][v].dsid) < 0)
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goto error;
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return 0;
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error:
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H5E_BEGIN_TRY {
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H5Sclose(mem_sid);
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H5Sclose(file_sid);
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H5Tclose(tid);
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H5Aclose(aid);
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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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H5Dclose(symbol_info[u][v].dsid);
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} H5E_END_TRY;
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return -1;
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} /* add_records() */
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static void
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usage(void)
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{
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printf("\n");
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printf("Usage error!\n");
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printf("\n");
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printf("Usage: vfd_swmr_sparse_writer [-q] [-f <# of records to write between\n");
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printf(" flushing file contents>] <# of records>\n");
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printf("\n");
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printf("<# of records to write between flushing file contents> should be 0\n");
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printf("(for no flushing) or between 1 and (<# of records> - 1)\n");
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printf("\n");
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printf("Defaults to verbose (no '-q' given) and flushing every 1000 records\n");
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printf("('-f 1000')\n");
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printf("\n");
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HDexit(1);
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} /* usage() */
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int main(int argc, const char *argv[])
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{
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sigset_t oldset;
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hid_t fid; /* File ID for file opened */
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long nrecords = 0; /* # of records to append */
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long flush_count = 1000; /* # of records to write between flushing file */
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unsigned verbose = 1; /* Whether to emit some informational messages */
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unsigned u; /* Local index variable */
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block_signals(&oldset);
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/* Parse command line options */
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if(argc < 2)
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usage();
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if(argc > 1) {
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u = 1;
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while(u < (unsigned)argc) {
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if(argv[u][0] == '-') {
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switch(argv[u][1]) {
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/* # of records to write between flushing file */
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case 'f':
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flush_count = HDatol(argv[u + 1]);
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if(flush_count < 0)
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usage();
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u += 2;
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break;
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/* Be quiet */
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case 'q':
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verbose = 0;
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u++;
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break;
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default:
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usage();
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break;
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} /* end switch */
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} /* end if */
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else {
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/* Get the number of records to append */
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nrecords = HDatol(argv[u]);
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if(nrecords <= 0)
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usage();
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u++;
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} /* end else */
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} /* end while */
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} /* end if */
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if(nrecords <= 0)
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usage();
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if(flush_count >= nrecords)
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usage();
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/* Emit informational message */
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if(verbose) {
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HDfprintf(stderr, "WRITER: Parameters:\n");
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HDfprintf(stderr, "\t# of records between flushes = %ld\n", flush_count);
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HDfprintf(stderr, "\t# of records to write = %ld\n", nrecords);
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} /* end if */
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/* Emit informational message */
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if(verbose)
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HDfprintf(stderr, "WRITER: Generating symbol names\n");
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/* Generate dataset names */
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if(generate_symbols() < 0)
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return -1;
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/* Emit informational message */
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if(verbose) {
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HDfprintf(stderr, "WRITER: Opening skeleton file: %s\n",
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COMMON_FILENAME);
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}
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/* Open file skeleton */
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if((fid = open_skeleton(COMMON_FILENAME, verbose)) < 0) {
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HDfprintf(stderr, "WRITER: Error opening skeleton file!\n");
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HDexit(1);
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} /* end if */
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/* Send a message to indicate "H5Fopen" is complete--releasing the file lock */
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h5_send_message(WRITER_MESSAGE, NULL, NULL);
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/* Emit informational message */
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if(verbose)
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HDfprintf(stderr, "WRITER: Adding records\n");
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/* Append records to datasets */
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if(add_records(fid, verbose, (unsigned long)nrecords, (unsigned long)flush_count) < 0) {
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HDfprintf(stderr, "WRITER: Error appending records to datasets!\n");
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HDexit(1);
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} /* end if */
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/* Emit informational message */
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if(verbose)
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HDfprintf(stderr, "WRITER: Releasing symbols\n");
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/* Clean up the symbols */
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if(shutdown_symbols() < 0) {
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HDfprintf(stderr, "WRITER: Error releasing symbols!\n");
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HDexit(1);
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} /* end if */
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await_signal(fid);
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restore_signals(&oldset);
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/* Emit informational message */
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if(verbose)
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HDfprintf(stderr, "WRITER: Closing objects/file\n");
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/* Close objects opened */
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if(H5Fclose(fid) < 0) {
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HDfprintf(stderr, "WRITER: Error closing file!\n");
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HDexit(1);
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} /* end if */
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return 0;
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} /* main() */
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