/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by The HDF Group. * * 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 COPYING file, which can be found at the root of the source code * * distribution tree, or in https://www.hdfgroup.org/licenses. * * If you do not have access to either file, you may request a copy from * * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: vfd_swmr_writer.c * (copied and modified from swmr_writer.c) * * Purpose: Writes data to a randomly selected subset of the datasets * in the VFD SWMR test file. * * This program is intended to run concurrently with the * vfd_swmr_reader program. * *------------------------------------------------------------------------- */ /***********/ /* Headers */ /***********/ #include "h5test.h" #include "vfd_swmr_common.h" #include "swmr_common.h" /* Uses getopt */ #ifndef H5_HAVE_WIN32_API /********************/ /* Local Prototypes */ /********************/ static hid_t open_skeleton(const char *filename, hbool_t verbose, FILE *verbose_file, unsigned random_seed, hbool_t old); static int add_records(hid_t fid, hbool_t verbose, FILE *verbose_file, unsigned long nrecords, unsigned long flush_count); static void usage(void); /*------------------------------------------------------------------------- * Function: open_skeleton * * Purpose: Opens the SWMR HDF5 file and datasets. * * Parameters: const char *filename * The filename of the SWMR HDF5 file to open * * hbool_t verbose * Whether or not to emit verbose console messages * * FILE *verbose_file * File handle for verbose output * * unsigned random_seed * Random seed for the file (used for verbose logging) * * hbool_t old * Whether to write in "old" file format * * Return: Success: The file ID of the opened SWMR file * The dataset IDs are stored in a global array * * Failure: -1 * *------------------------------------------------------------------------- */ static hid_t open_skeleton(const char *filename, hbool_t verbose, FILE *verbose_file, unsigned random_seed, hbool_t old H5_ATTR_UNUSED) { hid_t fid; /* File ID for new HDF5 file */ hid_t fapl; /* File access property list */ unsigned u, v; /* Local index variable */ hbool_t use_log_vfd = FALSE; /* Use the log VFD (set this manually) */ H5F_vfd_swmr_config_t *config = NULL; /* Configuration for VFD SWMR */ HDassert(filename); /* Allocate memory for the configuration structure */ if ((config = (H5F_vfd_swmr_config_t *)HDcalloc(1, sizeof(H5F_vfd_swmr_config_t))) == NULL) return -1; /* config, tick_len, max_lag, writer, maintain_metadata_file, generate_updater_files, * flush_raw_data, md_pages_reserved, md_file_path, updater_file_path */ init_vfd_swmr_config(config, 4, 5, TRUE, TRUE, FALSE, TRUE, 128, "rw-shadow", NULL); /* use_latest_format, use_vfd_swmr, only_meta_page, page_buf_size, config */ if ((fapl = vfd_swmr_create_fapl(TRUE, TRUE, FALSE, 4096, config)) < 0) return -1; if (use_log_vfd) { char verbose_name[1024]; HDsnprintf(verbose_name, sizeof(verbose_name), "vfd_swmr_writer.log.%u", random_seed); H5Pset_fapl_log(fapl, verbose_name, H5FD_LOG_ALL, (size_t)(512 * 1024 * 1024)); } /* end if */ /* Open the file with VFD SWMR configured */ if ((fid = H5Fopen(filename, H5F_ACC_RDWR, fapl)) < 0) return -1; /* Close file access property list */ if (H5Pclose(fapl) < 0) return -1; if (config) HDfree(config); /* Emit informational message */ if (verbose) HDfprintf(verbose_file, "WRITER: Opening datasets\n"); /* Open the datasets */ for (u = 0; u < NLEVELS; u++) for (v = 0; v < symbol_count[u]; v++) { if ((symbol_info[u][v].dsid = H5Dopen2(fid, symbol_info[u][v].name, H5P_DEFAULT)) < 0) return -1; symbol_info[u][v].nrecords = 0; } /* end for */ return fid; } /* open_skeleton() */ /*------------------------------------------------------------------------- * Function: add_records * * Purpose: Writes a specified number of records to random datasets in * the SWMR test file. * * Parameters: hid_t fid * The file ID of the SWMR HDF5 file * * hbool_t verbose * Whether or not to emit verbose console messages * * FILE *verbose_file * File handle for verbose output * * unsigned long nrecords * # of records to write to the datasets * * unsigned long flush_count * # of records to write before flushing the file to disk * * Return: Success: 0 * Failure: -1 * *------------------------------------------------------------------------- */ static int add_records(hid_t fid, hbool_t verbose, FILE *verbose_file, unsigned long nrecords, unsigned long flush_count) { hid_t tid; /* Datatype ID for records */ hid_t mem_sid; /* Memory dataspace ID */ hsize_t start[2] = {0, 0}, count[2] = {1, 1}; /* Hyperslab selection values */ hsize_t dim[2] = {1, 0}; /* Dataspace dimensions */ symbol_t record; /* The record to add to the dataset */ unsigned long rec_to_flush; /* # of records left to write before flush */ unsigned long u, v; /* Local index variables */ HDassert(fid >= 0); /* Reset the record */ /* (record's 'info' field might need to change for each record written, also) */ HDmemset(&record, 0, sizeof(record)); /* Create a dataspace for the record to add */ if ((mem_sid = H5Screate(H5S_SCALAR)) < 0) return -1; /* Create datatype for appending records */ if ((tid = create_symbol_datatype()) < 0) return -1; /* Add records to random datasets, according to frequency distribution */ rec_to_flush = flush_count; for (u = 0; u < nrecords; u++) { symbol_info_t *symbol; /* Symbol to write record to */ hid_t file_sid; /* Dataset's space ID */ /* Get a random dataset, according to the symbol distribution */ symbol = choose_dataset(NULL, NULL, verbose); /* Set the record's ID (equal to its position) */ record.rec_id = symbol->nrecords; /* Get the coordinate to write */ start[1] = symbol->nrecords; /* Extend the dataset's dataspace to hold the new record */ symbol->nrecords++; dim[1] = symbol->nrecords; if (H5Dset_extent(symbol->dsid, dim) < 0) return -1; /* Get the dataset's dataspace */ if ((file_sid = H5Dget_space(symbol->dsid)) < 0) return -1; /* Choose the last record in the dataset */ if (H5Sselect_hyperslab(file_sid, H5S_SELECT_SET, start, NULL, count, NULL) < 0) return -1; /* Write record to the dataset */ if (H5Dwrite(symbol->dsid, tid, mem_sid, file_sid, H5P_DEFAULT, &record) < 0) return -1; /* Close the dataset's dataspace */ if (H5Sclose(file_sid) < 0) return -1; /* Check for flushing file */ if (flush_count > 0) { /* Decrement count of records to write before flushing */ rec_to_flush--; /* Check for counter being reached */ if (0 == rec_to_flush) { /* Reset flush counter */ rec_to_flush = flush_count; } /* end if */ } /* end if */ } /* end for */ /* Close the memory dataspace */ if (H5Sclose(mem_sid) < 0) return -1; /* Close the datatype */ if (H5Tclose(tid) < 0) return -1; /* Emit informational message */ if (verbose) HDfprintf(verbose_file, "WRITER: Closing datasets\n"); /* Close the datasets */ for (u = 0; u < NLEVELS; u++) for (v = 0; v < symbol_count[u]; v++) if (H5Dclose(symbol_info[u][v].dsid) < 0) return -1; return 0; } static void usage(void) { HDprintf("\n"); HDprintf("Usage error!\n"); HDprintf("\n"); HDprintf("Usage: vfd_swmr_writer [-q] [-o] [-f <# of records to write between flushing\n"); HDprintf(" file contents>] [-r ] <# of records>\n"); HDprintf("\n"); HDprintf("<# of records to write between flushing file contents> should be 0\n"); HDprintf("(for no flushing) or between 1 and (<# of records> - 1).\n"); HDprintf("\n"); HDprintf("<# of records> must be specified.\n"); HDprintf("\n"); HDprintf("Defaults to verbose (no '-q' given), latest format when opening file (no '-o' given),\n"); HDprintf("flushing every 10000 records ('-f 10000'), and will generate a random seed (no -r given).\n"); HDprintf("\n"); HDexit(1); } int main(int argc, char *const *argv) { sigset_t oldset; hid_t fid; /* File ID for file opened */ long nrecords = 0; /* # of records to append */ long flush_count = 10000; /* # of records to write between flushing file */ hbool_t verbose = TRUE; /* Whether to emit some informational messages */ FILE * verbose_file = NULL; /* File handle for verbose output */ hbool_t old = FALSE; /* Whether to use non-latest-format when opening file */ hbool_t use_seed = FALSE; /* Set to TRUE if a seed was set on the command line */ hbool_t wait_for_signal = TRUE; unsigned random_seed = 0; /* Random # seed */ int ch, temp; block_signals(&oldset); while ((ch = getopt(argc, argv, "Wf:qr:o")) != -1) { switch (ch) { /* # of records to write between flushing file */ case 'f': flush_count = HDatol(optarg); if (flush_count < 0) usage(); break; /* Be quiet */ case 'q': verbose = FALSE; break; /* Random # seed */ case 'r': use_seed = TRUE; temp = HDatoi(optarg); random_seed = (unsigned)temp; break; case 'W': wait_for_signal = FALSE; break; /* Use non-latest-format when opening file */ case 'o': old = TRUE; break; default: usage(); break; } } argv += optind; argc -= optind; /* Parse command line options */ if (argc < 1) usage(); /* Get the number of records to append */ nrecords = HDatol(argv[0]); if (nrecords <= 0 || flush_count >= nrecords) usage(); /* Set the random seed */ if (!use_seed) { struct timeval t; HDgettimeofday(&t, NULL); random_seed = (unsigned)(t.tv_usec); } /* end if */ HDsrandom(random_seed); /* Open output file */ if (verbose) { char verbose_name[1024]; HDsnprintf(verbose_name, sizeof(verbose_name), "vfd_swmr_writer.out.%u", random_seed); if (NULL == (verbose_file = HDfopen(verbose_name, "w"))) { HDfprintf(stderr, "WRITER: Can't open verbose output file!\n"); HDexit(1); } } /* end if */ /* Emit informational message */ if (verbose) { HDfprintf(verbose_file, "WRITER: Parameters:\n"); HDfprintf(verbose_file, "\t# of records between flushes = %ld\n", flush_count); HDfprintf(verbose_file, "\t# of records to write = %ld\n", nrecords); } /* end if */ /* ALWAYS emit the random seed for possible debugging */ HDfprintf(stdout, "Using writer random seed: %u\n", random_seed); /* Emit informational message */ if (verbose) HDfprintf(verbose_file, "WRITER: Generating symbol names\n"); /* Generate dataset names */ if (generate_symbols() < 0) return -1; /* Emit informational message */ if (verbose) { HDfprintf(verbose_file, "WRITER: Opening skeleton file: %s\n", VFD_SWMR_FILENAME); } /* Open file skeleton */ if ((fid = open_skeleton(VFD_SWMR_FILENAME, verbose, verbose_file, random_seed, old)) < 0) { HDfprintf(stderr, "WRITER: Error opening skeleton file!\n"); HDexit(1); } /* end if */ /* Send a message to indicate "H5Fopen" is complete--releasing the file lock */ h5_send_message(VFD_SWMR_WRITER_MESSAGE, NULL, NULL); /* Emit informational message */ if (verbose) HDfprintf(verbose_file, "WRITER: Adding records\n"); /* Append records to datasets */ if (add_records(fid, verbose, verbose_file, (unsigned long)nrecords, (unsigned long)flush_count) < 0) { HDfprintf(stderr, "WRITER: Error appending records to datasets!\n"); HDexit(1); } /* end if */ /* Emit informational message */ if (verbose) HDfprintf(verbose_file, "WRITER: Releasing symbols\n"); /* Clean up the symbols */ if (shutdown_symbols() < 0) { HDfprintf(stderr, "WRITER: Error releasing symbols!\n"); HDexit(1); } /* end if */ if (wait_for_signal) await_signal(fid); restore_signals(&oldset); /* Emit informational message */ if (verbose) HDfprintf(verbose_file, "WRITER: Closing objects/file\n"); /* Close objects opened */ if (H5Fclose(fid) < 0) { HDfprintf(stderr, "WRITER: Error closing file!\n"); HDexit(1); } /* end if */ return 0; } #else /* H5_HAVE_WIN32_API */ int main(void) { HDfprintf(stderr, "Non-POSIX platform. Skipping.\n"); return EXIT_SUCCESS; } /* end main() */ #endif /* H5_HAVE_WIN32_API */