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Diffstat (limited to 'test/swmr_addrem_writer.c')
| -rw-r--r-- | test/swmr_addrem_writer.c | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/test/swmr_addrem_writer.c b/test/swmr_addrem_writer.c new file mode 100644 index 0000000..07f2cb1 --- /dev/null +++ b/test/swmr_addrem_writer.c @@ -0,0 +1,418 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * 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: swmr_addrem_writer.c + * + * Purpose: Adds and removes data to a randomly selected subset of the + * datasets in the SWMR test file. + * + * This program is intended to run concurrently with the + * swmr_reader program. It is also run AFTER a sequential + * (not concurrent!) invoking of swmr_writer so the writer + * can dump a bunch of data into the datasets. Otherwise, + * there wouldn't be much to shrink :) + * + *------------------------------------------------------------------------- + */ + +/***********/ +/* Headers */ +/***********/ + +#include "h5test.h" +#include "swmr_common.h" + +/****************/ +/* Local Macros */ +/****************/ + +/* The maximum # of records to add/remove from the dataset in one step */ +#define MAX_SIZE_CHANGE 10 + +/********************/ +/* Local Prototypes */ +/********************/ + +static hid_t open_skeleton(const char *filename, unsigned verbose); +static int addrem_records(hid_t fid, unsigned verbose, unsigned long nops, 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 + * + * unsigned verbose + * Whether or not to emit verbose console messages + * + * 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, unsigned verbose) +{ + hid_t fid; /* File ID for new HDF5 file */ + hid_t fapl; /* File access property list */ + hid_t sid; /* Dataspace ID */ + hsize_t dim[2]; /* Dataspace dimension */ + unsigned u, v; /* Local index variable */ + + HDassert(filename); + + /* Create file access property list */ + if ((fapl = h5_fileaccess()) < 0) + return -1; + + /* Set to use the latest library format */ + if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0) + return -1; + + /* Open the file */ + if ((fid = H5Fopen(filename, H5F_ACC_RDWR | H5F_ACC_SWMR_WRITE, fapl)) < 0) + return -1; + + /* Close file access property list */ + if (H5Pclose(fapl) < 0) + return -1; + + /* Emit informational message */ + if (verbose) + HDfprintf(stderr, "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; + if ((sid = H5Dget_space(symbol_info[u][v].dsid)) < 0) + return -1; + if (2 != H5Sget_simple_extent_ndims(sid)) + return -1; + if (H5Sget_simple_extent_dims(sid, dim, NULL) < 0) + return -1; + symbol_info[u][v].nrecords = dim[1]; + } /* end for */ + + return fid; +} + +/*------------------------------------------------------------------------- + * Function: addrem_records + * + * Purpose: Adds/removes a specified number of records to random datasets + * to the SWMR test file. + * + * Parameters: hid_t fid + * The file ID of the SWMR HDF5 file + * + * unsigned verbose + * Whether or not to emit verbose console messages + * + * unsigned long nops + * # of records to read/write in the datasets + * + * unsigned long flush_count + * # of records to write before flushing the file to disk + * + * Return: Success: 0 + * Failure: -1 + * + *------------------------------------------------------------------------- + */ +static int +addrem_records(hid_t fid, unsigned verbose, unsigned long nops, 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 buf[MAX_SIZE_CHANGE]; /* Write buffer */ + unsigned long op_to_flush; /* # of operations before flush */ + unsigned long u, v; /* Local index variables */ + + HDassert(fid > 0); + + /* Reset the buffer */ + HDmemset(&buf, 0, sizeof(buf)); + + /* Create a dataspace for the record to add */ + if ((mem_sid = H5Screate_simple(2, count, NULL)) < 0) + return -1; + + /* Create datatype for appending records */ + if ((tid = create_symbol_datatype()) < 0) + return -1; + + /* Add and remove records to random datasets, according to frequency + * distribution */ + op_to_flush = flush_count; + for (u = 0; u < nops; 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(); + + /* Decide whether to shrink or expand, and by how much */ + count[1] = (hsize_t)HDrandom() % (MAX_SIZE_CHANGE * 2) + 1; + + if (count[1] > MAX_SIZE_CHANGE) { + /* Add records */ + count[1] -= MAX_SIZE_CHANGE; + + /* Set the buffer's IDs (equal to its position) */ + for (v = 0; v < count[1]; v++) + buf[v].rec_id = (uint64_t)symbol->nrecords + (uint64_t)v; + + /* Set the memory space to the correct size */ + if (H5Sset_extent_simple(mem_sid, 2, count, NULL) < 0) + return -1; + + /* Get the coordinates to write */ + start[1] = symbol->nrecords; + + /* Cork the metadata cache, to prevent the object header from being + * flushed before the data has been written */ + if (H5Odisable_mdc_flushes(symbol->dsid) < 0) + return -1; + + /* Extend the dataset's dataspace to hold the new record */ + symbol->nrecords += count[1]; + 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, &buf) < 0) + return -1; + + /* Uncork the metadata cache */ + if (H5Oenable_mdc_flushes(symbol->dsid) < 0) + return -1; + + /* Close the dataset's dataspace */ + if (H5Sclose(file_sid) < 0) + return -1; + } /* end if */ + else { + /* Shrink the dataset's dataspace */ + if (count[1] > symbol->nrecords) + symbol->nrecords = 0; + else + symbol->nrecords -= count[1]; + dim[1] = symbol->nrecords; + if (H5Dset_extent(symbol->dsid, dim) < 0) + return -1; + } /* end else */ + + /* Check for flushing file */ + if (flush_count > 0) { + /* Decrement count of records to write before flushing */ + op_to_flush--; + + /* Check for counter being reached */ + if (0 == op_to_flush) { + /* Flush contents of file */ + if (H5Fflush(fid, H5F_SCOPE_GLOBAL) < 0) + return -1; + + /* Reset flush counter */ + op_to_flush = flush_count; + } /* end if */ + } /* end if */ + } /* end for */ + + /* Emit informational message */ + if (verbose) + HDfprintf(stderr, "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: swmr_addrem_writer [-q] [-f <# of operations between flushing\n"); + HDprintf(" file contents>] [-r <random seed>] <# of operations>\n"); + HDprintf("\n"); + HDprintf("<# of operations between flushing file contents> should be 0 (for\n"); + HDprintf("no flushing) or between 1 and (<# of operations> - 1).\n"); + HDprintf("\n"); + HDprintf("<# of operations> must be specified.\n"); + HDprintf("\n"); + HDprintf("Defaults to verbose (no '-q' given), flushing every 1000 operations\n"); + HDprintf("('-f 1000'), and will generate a random seed (no -r given).\n"); + HDprintf("\n"); + HDexit(EXIT_FAILURE); +} + +int +main(int argc, char *argv[]) +{ + hid_t fid; /* File ID for file opened */ + long nops = 0; /* # of times to grow or shrink the dataset */ + long flush_count = 1000; /* # of records to write between flushing file */ + unsigned verbose = 1; /* Whether to emit some informational messages */ + unsigned use_seed = 0; /* Set to 1 if a seed was set on the command line */ + unsigned random_seed = 0; /* Random # seed */ + unsigned u; /* Local index variable */ + int temp; + + /* Parse command line options */ + if (argc < 2) + usage(); + if (argc > 1) { + u = 1; + while (u < (unsigned)argc) { + if (argv[u][0] == '-') { + switch (argv[u][1]) { + /* # of records to write between flushing file */ + case 'f': + flush_count = HDatol(argv[u + 1]); + if (flush_count < 0) + usage(); + u += 2; + break; + + /* Be quiet */ + case 'q': + verbose = 0; + u++; + break; + + /* Random # seed */ + case 'r': + use_seed = 1; + temp = HDatoi(argv[u + 1]); + if (temp < 0) + usage(); + else + random_seed = (unsigned)temp; + u += 2; + break; + + default: + usage(); + break; + } /* end switch */ + } /* end if */ + else { + /* Get the number of records to append */ + nops = HDatol(argv[u]); + if (nops <= 0) + usage(); + + u++; + } /* end else */ + } /* end while */ + } /* end if */ + if (nops <= 0) + usage(); + if (flush_count >= nops) + usage(); + + /* Emit informational message */ + if (verbose) { + HDfprintf(stderr, "Parameters:\n"); + HDfprintf(stderr, "\t# of operations between flushes = %ld\n", flush_count); + HDfprintf(stderr, "\t# of operations = %ld\n", nops); + } /* end if */ + + /* Set the random seed */ + if (0 == use_seed) { + struct timeval t; + HDgettimeofday(&t, NULL); + random_seed = (unsigned)(t.tv_usec); + } /* end if */ + HDsrandom(random_seed); + /* ALWAYS emit the random seed for possible debugging */ + HDfprintf(stderr, "Using writer random seed: %u\n", random_seed); + + /* Emit informational message */ + if (verbose) + HDfprintf(stderr, "Generating symbol names\n"); + + /* Generate dataset names */ + if (generate_symbols() < 0) + return -1; + + /* Emit informational message */ + if (verbose) + HDfprintf(stderr, "Opening skeleton file: %s\n", FILENAME); + + /* Open file skeleton */ + if ((fid = open_skeleton(FILENAME, verbose)) < 0) { + HDfprintf(stderr, "Error opening skeleton file!\n"); + HDexit(EXIT_FAILURE); + } /* end if */ + + /* Send a message to indicate "H5Fopen" is complete--releasing the file lock */ + h5_send_message(WRITER_MESSAGE, NULL, NULL); + + /* Emit informational message */ + if (verbose) + HDfprintf(stderr, "Adding and removing records\n"); + + /* Grow and shrink datasets */ + if (addrem_records(fid, verbose, (unsigned long)nops, (unsigned long)flush_count) < 0) { + HDfprintf(stderr, "Error adding and removing records from datasets!\n"); + HDexit(EXIT_FAILURE); + } /* end if */ + + /* Emit informational message */ + if (verbose) + HDfprintf(stderr, "Releasing symbols\n"); + + /* Clean up the symbols */ + if (shutdown_symbols() < 0) { + HDfprintf(stderr, "Error releasing symbols!\n"); + HDexit(EXIT_FAILURE); + } /* end if */ + + /* Emit informational message */ + if (verbose) + HDfprintf(stderr, "Closing objects\n"); + + /* Close objects opened */ + if (H5Fclose(fid) < 0) { + HDfprintf(stderr, "Error closing file!\n"); + HDexit(EXIT_FAILURE); + } /* end if */ + + return 0; +} |