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Diffstat (limited to 'test/swmr_start_write.c')
| -rw-r--r-- | test/swmr_start_write.c | 713 |
1 files changed, 713 insertions, 0 deletions
diff --git a/test/swmr_start_write.c b/test/swmr_start_write.c new file mode 100644 index 0000000..26a3dab --- /dev/null +++ b/test/swmr_start_write.c @@ -0,0 +1,713 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * 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: swmr_start_write.c + * + * Purpose: This program enables SWMR writing mode via H5Fstart_swmr_write(). + * It writes data to a randomly selected subset of the datasets + * in the SWMR test file; and it is intended to run concurrently + * with the swmr_reader program. + * + * NOTE: The routines in this program are basically copied and modified from + * swmr*.c. + *------------------------------------------------------------------------- + */ + +/***********/ +/* Headers */ +/***********/ + +#include "h5test.h" +#include "swmr_common.h" + +/********************/ +/* Local Prototypes */ +/********************/ + +static hid_t create_file(const char *filename, hbool_t verbose, + FILE *verbose_file, unsigned random_seed); +static int create_datasets(hid_t fid, int comp_level, hbool_t verbose, + FILE *verbose_file, const char *index_type); +static int create_close_datasets(hid_t fid, int comp_level, hbool_t verbose, + FILE *verbose_file); +static int open_datasets(hid_t fid, hbool_t verbose, FILE *verbose_file); +static hid_t open_file(const char *filename, hbool_t verbose, + FILE *verbose_file); +static int add_records(hid_t fid, hbool_t verbose, FILE *verbose_file, + unsigned long nrecords, unsigned long flush_count); +static void usage(void); + +#define CHUNK_SIZE 50 /* Chunk size for created datasets */ + + +/*------------------------------------------------------------------------- + * Function: create_file + * + * Purpose: Creates the HDF5 file (without SWMR access) which + * which will be used for testing H5Fstart_swmr_write(). + * + * Parameters: + * filename: The SWMR test file's name. + * verbose: whether verbose console output is desired. + * verbose_file: file pointer for verbose output + * random_seed: The random seed to store in the file. + * The sparse tests use this value. + * + * Return: Success: the file ID + * Failure: -1 + * + *------------------------------------------------------------------------- + */ +static hid_t +create_file(const char *filename, hbool_t verbose, FILE *verbose_file, + unsigned random_seed) +{ + hid_t fid; /* File ID for new HDF5 file */ + hid_t fcpl; /* File creation property list */ + hid_t fapl; /* File access property list */ + hid_t sid; /* Dataspace ID */ + hid_t aid; /* Attribute ID */ + + HDassert(filename); + + /* Create file access property list */ + if((fapl = h5_fileaccess()) < 0) + return -1; + + /* We ALWAYS select the latest file format for SWMR */ + if(H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0) + return -1; + + if(verbose) { + char verbose_name[1024]; + + HDsnprintf(verbose_name, sizeof(verbose_name), "swmr_start_write.log.%u", random_seed); + + H5Pset_fapl_log(fapl, verbose_name, H5FD_LOG_ALL, (size_t)(512 * 1024 * 1024)); + } /* end if */ + + /* Create file creation property list */ + if((fcpl = H5Pcreate(H5P_FILE_CREATE)) < 0) + return -1; + + /* Emit informational message */ + if(verbose) + HDfprintf(verbose_file, "Creating file without SWMR access\n"); + + /* Create the file */ + if((fid = H5Fcreate(filename, H5F_ACC_TRUNC, fcpl, fapl)) < 0) + return -1; + + /* Close file creation property list */ + if(H5Pclose(fcpl) < 0) + return -1; + + /* Close file access property list */ + if(H5Pclose(fapl) < 0) + return -1; + + /* Create attribute with (shared) random number seed - for sparse test */ + if((sid = H5Screate(H5S_SCALAR)) < 0) + return -1; + if((aid = H5Acreate2(fid, "seed", H5T_NATIVE_UINT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0) + return -1; + if(H5Awrite(aid, H5T_NATIVE_UINT, &random_seed) < 0) + return -1; + if(H5Sclose(sid) < 0) + return -1; + if(H5Aclose(aid) < 0) + return -1; + + return fid; +} /* end create_file() */ + + +/*------------------------------------------------------------------------- + * Function: create_datasets + * + * Purpose: Create datasets (and keep them opened) which will be used for testing + * H5Fstart_swmr_write(). + * + * Parameters: + * fid: file ID for the SWMR test file + * comp_level: the compresssion level + * index_type: The chunk index type (b1 | b2 | ea | fa) + * verbose: whether verbose console output is desired. + * verbose_file: file pointer for verbose output + * + * Return: Success: 0 + * Failure: -1 + * + *------------------------------------------------------------------------- + */ +static int +create_datasets(hid_t fid, int comp_level, hbool_t verbose, FILE *verbose_file, + const char *index_type) +{ + hid_t dcpl; /* Dataset creation property list */ + hid_t tid; /* Datatype for dataset elements */ + hid_t sid; /* Dataspace ID */ + hsize_t dims[2] = {1, 0}; /* Dataset starting dimensions */ + hsize_t max_dims[2] = {1, H5S_UNLIMITED}; /* Dataset maximum dimensions */ + hsize_t chunk_dims[2] = {1, CHUNK_SIZE}; /* Chunk dimensions */ + unsigned u, v; /* Local index variable */ + + HDassert(index_type); + + /* Create datatype for creating datasets */ + if((tid = create_symbol_datatype()) < 0) + return -1; + + /* There are two chunk indexes tested here. + * With one unlimited dimension, we get the extensible array index + * type, with two unlimited dimensions, we get a v-2 B-tree. + */ + if(!HDstrcmp(index_type, "b2")) + max_dims[0] = H5S_UNLIMITED; + + /* Create dataspace for creating datasets */ + if((sid = H5Screate_simple(2, dims, max_dims)) < 0) + return -1; + + /* Create dataset creation property list */ + if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0) + return -1; + if(H5Pset_chunk(dcpl, 2, chunk_dims) < 0) + return -1; + if(comp_level >= 0) { + if(H5Pset_deflate(dcpl, (unsigned)comp_level) < 0) + return -1; + } /* end if */ + + /* Emit informational message */ + if(verbose) + HDfprintf(verbose_file, "Creating datasets\n"); + + /* Create the datasets */ + for(u = 0; u < NLEVELS; u++) + for(v = 0; v < symbol_count[u]; v++) { + + if((symbol_info[u][v].dsid = H5Dcreate2(fid, symbol_info[u][v].name, tid, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0) + return -1; + symbol_info[u][v].nrecords = 0; + + } /* end for */ + + return 0; +} /* create_datasets() */ + + +/*------------------------------------------------------------------------- + * Function: create_close_datasets + * + * Purpose: Create and close datasets which will be used for testing + * H5Fstart_swmr_write(). + * + * Parameters: + * fid: file ID for the SWMR test file + * comp_level: the compresssion level + * verbose: whether verbose console output is desired. + * verbose_file: file pointer for verbose output + * + * Return: Success: 0 + * Failure: -1 + * + *------------------------------------------------------------------------- + */ +static int +create_close_datasets(hid_t fid, int comp_level, hbool_t verbose, FILE *verbose_file) +{ + hid_t dcpl; /* Dataset creation property list */ + hid_t tid; /* Datatype for dataset elements */ + hid_t sid; /* Dataspace ID */ + hsize_t dims[2] = {1, 0}; /* Dataset starting dimensions */ + hsize_t max_dims[2] = {1, H5S_UNLIMITED}; /* Dataset maximum dimensions */ + hsize_t chunk_dims[2] = {1, CHUNK_SIZE}; /* Chunk dimensions */ + unsigned u, v; /* Local index variable */ + + /* Create datatype for creating datasets */ + if((tid = create_symbol_datatype()) < 0) + return -1; + + /* Create dataspace for creating datasets */ + if((sid = H5Screate_simple(2, dims, max_dims)) < 0) + return -1; + + /* Create dataset creation property list */ + if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0) + return -1; + if(H5Pset_chunk(dcpl, 2, chunk_dims) < 0) + return -1; + if(comp_level >= 0) { + if(H5Pset_deflate(dcpl, (unsigned)comp_level) < 0) + return -1; + } /* end if */ + + /* Emit informational message */ + if(verbose) + HDfprintf(verbose_file, "Creating datasets\n"); + + /* Create the datasets */ + for(u = 0; u < NLEVELS; u++) + for(v = 0; v < symbol_count[u]; v++) { + hid_t dsid; /* Dataset ID */ + char name_buf[64]; + + generate_name(name_buf, u, v); + if((dsid = H5Dcreate2(fid, name_buf, tid, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0) + return -1; + + if(H5Dclose(dsid) < 0) + return -1; + } /* end for */ + + /* Closing */ + if(H5Pclose(dcpl) < 0) + return -1; + if(H5Sclose(sid) < 0) + return -1; + if(H5Tclose(tid) < 0) + return -1; + + return 0; +} /* create_close_datasets() */ + + +/*------------------------------------------------------------------------- + * Function: open_file + * + * Purpose: Opens the HDF5 test file without SWMR access. + * + * Parameters: + * filename: The filename of the HDF5 file to open + * verbose: whether or not to emit verbose console messages + * verbose_file: file pointer for verbose output + * + * Return: Success: The file ID of the opened SWMR file + * Failure: -1 + * + *------------------------------------------------------------------------- + */ +static hid_t +open_file(const char *filename, hbool_t verbose, FILE *verbose_file) +{ + hid_t fid; /* File ID for new HDF5 file */ + hid_t fapl; /* File access property list */ + + 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; + + /* Emit informational message */ + if(verbose) + HDfprintf(verbose_file, "Opening the file without SWMR access: %s\n", filename); + + /* Open the file */ + if((fid = H5Fopen(filename, H5F_ACC_RDWR, fapl)) < 0) + return -1; + + /* Close file access property list */ + if(H5Pclose(fapl) < 0) + return -1; + + return fid; +} /* Open file() */ + + + +/*------------------------------------------------------------------------- + * Function: open_datasets + * + * Purpose: Opens the datasets. + * + * Parameters: + * filename: the filename of the SWMR HDF5 file to open + * verbose: whether or not to emit verbose console messages + * verbose_file: file pointer for verbose output + * + * Return: Success: 0 + * Failure: -1 + * + *------------------------------------------------------------------------- + */ +static int +open_datasets(hid_t fid, hbool_t verbose, FILE *verbose_file) +{ + unsigned u, v; /* Local index variable */ + + /* Emit informational message */ + if(verbose) + HDfprintf(verbose_file, "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 0; +} /* open_datasets() */ + + +/*------------------------------------------------------------------------- + * Function: add_records + * + * Purpose: Writes a specified number of records to random datasets in + * the SWMR test file. + * + * Parameters: + * fid: The file ID of the SWMR HDF5 file + * verbose: Whether or not to emit verbose console messages + * verbose_file: file pointer for verbose output + * nrecords: # of records to write to the datasets + * 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(); + + /* Set the record's ID (equal to its position) */ + record.rec_id = symbol->nrecords; + + /* Get the coordinate 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++; + 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; + + /* 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; + + /* 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) { + /* Flush contents of file */ + if(H5Fflush(fid, H5F_SCOPE_GLOBAL) < 0) + return -1; + + /* 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, "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; +} /* add_records() */ + +static void +usage(void) +{ + printf("\n"); + printf("Usage error!\n"); + printf("\n"); + printf("Usage: swmr_start_write [-f <# of records to write between flushing file contents>]\n"); + printf(" [-i <index type>] [-c <deflate compression level>]\n"); + printf(" [-r <random seed>] [-q] <# of records>\n"); + printf("\n"); + printf("<# of records to write between flushing file contents> should be 0\n"); + printf("(for no flushing) or between 1 and (<# of records> - 1).\n"); + printf("\n"); + printf("<index type> should be b2 or ea\n"); + printf("\n"); + printf("<deflate compression level> should be -1 (for no compression) or 0-9\n"); + printf("\n"); + printf("<# of records> must be specified.\n"); + printf("\n"); + printf("Defaults to flushing every 10000 records ('-f 10000'),\n"); + printf("v1 b-tree indexing (-i b1), compression ('-c -1'),\n"); + printf("will generate a random seed (no -r given), and verbose (no '-q' given)\n"); + printf("\n"); + HDexit(1); +} /* usage() */ + +/* + * Can test with different scenarios as below: + * 1) create_file(), create_datasets(), H5Fstart_swmr_write(), add_records(), H5Fclose(). + * 2) create_file(), create_close_datasets(), open_datasets(), H5Fstart_swmr_write(), add_records(), H5Fclose(). + * 3) create_file(), create_close_datasets(), H5Fclose(), + * open_file(), open_dataset(), H5Fstart_swmr_write(), add_records(), H5Fclose(). + */ +int main(int argc, const char *argv[]) +{ + 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 use_seed = FALSE; /* Set to TRUE if a seed was set on the command line */ + unsigned random_seed = 0; /* Random # seed */ + int comp_level = -1; /* Compression level (-1 is no compression) */ + const char *index_type = "b1"; /* Chunk index type */ + unsigned u; /* Local index variable */ + int temp; /* Temporary variable */ + + /* 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]) { + /* Compress dataset chunks */ + case 'c': + comp_level = HDatoi(argv[u + 1]); + if(comp_level < -1 || comp_level > 9) + usage(); + u += 2; + break; + + /* Chunk index type */ + case 'i': + index_type = argv[u + 1]; + if(HDstrcmp(index_type, "ea") + && HDstrcmp(index_type, "b2")) + usage(); + u += 2; + break; + + /* # 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 = FALSE; + u++; + break; + + /* Random # seed */ + case 'r': + use_seed = TRUE; + 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 */ + nrecords = HDatol(argv[u]); + if(nrecords <= 0) + usage(); + + u++; + } /* end else */ + } /* end while */ + } /* end if */ + + if(nrecords <= 0) + usage(); + if(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), "swmr_writer.out.%u", random_seed); + if(NULL == (verbose_file = HDfopen(verbose_name, "w"))) { + HDfprintf(stderr, "Can't open verbose output file!\n"); + HDexit(1); + } + } /* end if */ + + /* Emit informational message */ + if(verbose) { + HDfprintf(verbose_file, "Parameters:\n"); + HDfprintf(verbose_file, "\tindex type = %s\n", index_type); + HDfprintf(verbose_file, "\tcompression level = %d\n", comp_level); + 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); + + /* Create the test file */ + if((fid = create_file(FILENAME, verbose, verbose_file, random_seed)) < 0) { + HDfprintf(stderr, "Error creating the file...\n"); + HDexit(1); + } + + /* Emit informational message */ + if(verbose) + HDfprintf(verbose_file, "Generating symbol names\n"); + + /* Generate dataset names */ + if(generate_symbols() < 0) + return -1; + + /* Create the datasets in the file */ + if(create_datasets(fid, comp_level, verbose, verbose_file, index_type) < 0) { + HDfprintf(stderr, "Error creating datasets...\n"); + HDexit(1); + } + + /* Enable SWMR writing mode */ + if(H5Fstart_swmr_write(fid) < 0) { + HDfprintf(stderr, "Error starting SWMR writing mode...\n"); + HDexit(1); + } + + /* 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(verbose_file, "Adding records\n"); + + /* Append records to datasets */ + if(add_records(fid, verbose, verbose_file, (unsigned long)nrecords, (unsigned long)flush_count) < 0) { + HDfprintf(stderr, "Error appending records to datasets!\n"); + HDexit(1); + } /* end if */ + + /* Emit informational message */ + if(verbose) + HDfprintf(verbose_file, "Releasing symbols\n"); + + /* Clean up the symbols */ + if(shutdown_symbols() < 0) { + HDfprintf(stderr, "Error releasing symbols!\n"); + HDexit(1); + } /* end if */ + + /* Emit informational message */ + if(verbose) + HDfprintf(verbose_file, "Closing the file\n"); + + /* Close objects opened */ + if(H5Fclose(fid) < 0) { + HDfprintf(stderr, "Error closing file!\n"); + HDexit(1); + } /* end if */ + + return 0; +} /* main() */ + |