/* Copyright 2007, UCAR/Unidata See COPYRIGHT file for copying and redistribution conditions. This is part of netCDF. This program tests for a bug discovered with nofill mode that failed only on file systems with block size in a particular range. It fails when invoked with the blksize argument between 2091953 and 2150032, inclusive, and succeeds for other blksizes. $Id: tst_nofill.c 1111 2011-04-26 13:24:21Z ed $ */ #include #include #include #include #include #include #include #define FILE_NAME1 "tst_fill1.nc" #define FILE_NAME2 "tst_fill2.nc" void check_err(const int stat, const int line, const char *file) { if (stat != NC_NOERR) { (void) fprintf(stderr, "line %d of %s: %s\n", line, file, nc_strerror(stat)); fflush(stderr); exit(1); } } #define LON_LEN 240 #define LAT_LEN 121 #define LVL_LEN 31 #define TIME_LEN 1 int create_file(char *file_name, int fill_mode, size_t* sizehintp) { int i; int stat; /* return status */ int ncid; /* netCDF id */ /* dimension ids */ int lon_dim; int lat_dim; int lvl_dim; int time_dim; /* dimension lengths */ size_t lon_len = LON_LEN; size_t lat_len = LAT_LEN; size_t lvl_len = LVL_LEN; size_t time_len = TIME_LEN; /* variable ids */ int time_id; int lat_id; int lon_id; int lvl_id; int sfc_pres_id; int temp_scrn_id; int qsair_scrn_id; int topog_id; int mslp_id; int sfc_temp_id; int zonal_wnd_id; /* rank (number of dimensions) for each variable */ # define RANK_time 1 # define RANK_lat 1 # define RANK_lon 1 # define RANK_lvl 1 # define RANK_sfc_pres 3 # define RANK_temp_scrn 3 # define RANK_qsair_scrn 3 # define RANK_topog 3 # define RANK_mslp 3 # define RANK_sfc_temp 3 # define RANK_zonal_wnd 4 /* variable shapes */ int time_dims[RANK_time]; int lat_dims[RANK_lat]; int lon_dims[RANK_lon]; int lvl_dims[RANK_lvl]; int sfc_pres_dims[RANK_sfc_pres]; int temp_scrn_dims[RANK_temp_scrn]; int qsair_scrn_dims[RANK_qsair_scrn]; int topog_dims[RANK_topog]; int mslp_dims[RANK_mslp]; int sfc_temp_dims[RANK_sfc_temp]; int zonal_wnd_dims[RANK_zonal_wnd]; size_t zonal_wnd_start[RANK_zonal_wnd]; size_t zonal_wnd_count[RANK_zonal_wnd]; float zonal_wnd[LON_LEN*LAT_LEN*TIME_LEN]; int ii; int old_fill_mode; size_t default_initialsize = 0; /* To test bug on filesystem without large block size, we can get * the same effect by providing the desired value as sizehint to * nc__create() instead of calling nc_create() and getting the * block size reported by fstat */ stat = nc__create(file_name, NC_CLOBBER, default_initialsize, sizehintp, &ncid); check_err(stat,__LINE__,__FILE__); stat = nc_set_fill(ncid, fill_mode, &old_fill_mode); check_err(stat,__LINE__,__FILE__); /* define dimensions */ stat = nc_def_dim(ncid, "lon", lon_len, &lon_dim); check_err(stat,__LINE__,__FILE__); stat = nc_def_dim(ncid, "lat", lat_len, &lat_dim); check_err(stat,__LINE__,__FILE__); stat = nc_def_dim(ncid, "lvl", lvl_len, &lvl_dim); check_err(stat,__LINE__,__FILE__); stat = nc_def_dim(ncid, "time", time_len, &time_dim); check_err(stat,__LINE__,__FILE__); /* define variables */ time_dims[0] = time_dim; stat = nc_def_var(ncid, "time", NC_DOUBLE, RANK_time, time_dims, &time_id); check_err(stat,__LINE__,__FILE__); lat_dims[0] = lat_dim; stat = nc_def_var(ncid, "lat", NC_FLOAT, RANK_lat, lat_dims, &lat_id); check_err(stat,__LINE__,__FILE__); lon_dims[0] = lon_dim; stat = nc_def_var(ncid, "lon", NC_FLOAT, RANK_lon, lon_dims, &lon_id); check_err(stat,__LINE__,__FILE__); lvl_dims[0] = lvl_dim; stat = nc_def_var(ncid, "lvl", NC_FLOAT, RANK_lvl, lvl_dims, &lvl_id); check_err(stat,__LINE__,__FILE__); sfc_pres_dims[0] = time_dim; sfc_pres_dims[1] = lat_dim; sfc_pres_dims[2] = lon_dim; stat = nc_def_var(ncid, "sfc_pres", NC_FLOAT, RANK_sfc_pres, sfc_pres_dims, &sfc_pres_id); check_err(stat,__LINE__,__FILE__); temp_scrn_dims[0] = time_dim; temp_scrn_dims[1] = lat_dim; temp_scrn_dims[2] = lon_dim; stat = nc_def_var(ncid, "temp_scrn", NC_FLOAT, RANK_temp_scrn, temp_scrn_dims, &temp_scrn_id); check_err(stat,__LINE__,__FILE__); qsair_scrn_dims[0] = time_dim; qsair_scrn_dims[1] = lat_dim; qsair_scrn_dims[2] = lon_dim; stat = nc_def_var(ncid, "qsair_scrn", NC_FLOAT, RANK_qsair_scrn, qsair_scrn_dims, &qsair_scrn_id); check_err(stat,__LINE__,__FILE__); topog_dims[0] = time_dim; topog_dims[1] = lat_dim; topog_dims[2] = lon_dim; stat = nc_def_var(ncid, "topog", NC_FLOAT, RANK_topog, topog_dims, &topog_id); check_err(stat,__LINE__,__FILE__); mslp_dims[0] = time_dim; mslp_dims[1] = lat_dim; mslp_dims[2] = lon_dim; stat = nc_def_var(ncid, "mslp", NC_FLOAT, RANK_mslp, mslp_dims, &mslp_id); check_err(stat,__LINE__,__FILE__); sfc_temp_dims[0] = time_dim; sfc_temp_dims[1] = lat_dim; sfc_temp_dims[2] = lon_dim; stat = nc_def_var(ncid, "sfc_temp", NC_FLOAT, RANK_sfc_temp, sfc_temp_dims, &sfc_temp_id); check_err(stat,__LINE__,__FILE__); zonal_wnd_dims[0] = time_dim; zonal_wnd_dims[1] = lvl_dim; zonal_wnd_dims[2] = lat_dim; zonal_wnd_dims[3] = lon_dim; stat = nc_def_var(ncid, "zonal_wnd", NC_FLOAT, RANK_zonal_wnd, zonal_wnd_dims, &zonal_wnd_id); check_err(stat,__LINE__,__FILE__); /* leave define mode */ stat = nc_enddef (ncid); check_err(stat,__LINE__,__FILE__); { /* store time */ size_t time_start[RANK_time]; size_t time_count[RANK_time]; double time[TIME_LEN] = {1.}; time_len = 1; time_start[0] = 0; time_count[0] = time_len; stat = nc_put_vara_double(ncid, time_id, time_start, time_count, time); check_err(stat,__LINE__,__FILE__); } { /* store lat */ float lat[] = {90, 88.5, 87, 85.5, 84, 82.5, 81, 79.5, 78, 76.5, 75, 73.5, 72, 70.5, 69, 67.5, 66, 64.5, 63, 61.5, 60, 58.5, 57, 55.5, 54, 52.5, 51, 49.5, 48, 46.5, 45, 43.5, 42, 40.5, 39, 37.5, 36, 34.5, 33, 31.5, 30, 28.5, 27, 25.5, 24, 22.5, 21, 19.5, 18, 16.5, 15, 13.5, 12, 10.5, 9, 7.5, 6, 4.5, 3, 1.5, 0, -1.5, -3, -4.5, -6, -7.5, -9, -10.5, -12, -13.5, -15, -16.5, -18, -19.5, -21, -22.5, -24, -25.5, -27, -28.5, -30, -31.5, -33, -34.5, -36, -37.5, -39, -40.5, -42, -43.5, -45, -46.5, -48, -49.5, -51, -52.5, -54, -55.5, -57, -58.5, -60, -61.5, -63, -64.5, -66, -67.5, -69, -70.5, -72, -73.5, -75, -76.5, -78, -79.5, -81, -82.5, -84, -85.5, -87, -88.5, -90}; stat = nc_put_var_float(ncid, lat_id, lat); check_err(stat,__LINE__,__FILE__); } { /* store lon */ float lon[] = {0, 1.5, 3, 4.5, 6, 7.5, 9, 10.5, 12, 13.5, 15, 16.5, 18, 19.5, 21, 22.5, 24, 25.5, 27, 28.5, 30, 31.5, 33, 34.5, 36, 37.5, 39, 40.5, 42, 43.5, 45, 46.5, 48, 49.5, 51, 52.5, 54, 55.5, 57, 58.5, 60, 61.5, 63, 64.5, 66, 67.5, 69, 70.5, 72, 73.5, 75, 76.5, 78, 79.5, 81, 82.5, 84, 85.5, 87, 88.5, 90, 91.5, 93, 94.5, 96, 97.5, 99, 100.5, 102, 103.5, 105, 106.5, 108, 109.5, 111, 112.5, 114, 115.5, 117, 118.5, 120, 121.5, 123, 124.5, 126, 127.5, 129, 130.5, 132, 133.5, 135, 136.5, 138, 139.5, 141, 142.5, 144, 145.5, 147, 148.5, 150, 151.5, 153, 154.5, 156, 157.5, 159, 160.5, 162, 163.5, 165, 166.5, 168, 169.5, 171, 172.5, 174, 175.5, 177, 178.5, 180, 181.5, 183, 184.5, 186, 187.5, 189, 190.5, 192, 193.5, 195, 196.5, 198, 199.5, 201, 202.5, 204, 205.5, 207, 208.5, 210, 211.5, 213, 214.5, 216, 217.5, 219, 220.5, 222, 223.5, 225, 226.5, 228, 229.5, 231, 232.5, 234, 235.5, 237, 238.5, 240, 241.5, 243, 244.5, 246, 247.5, 249, 250.5, 252, 253.5, 255, 256.5, 258, 259.5, 261, 262.5, 264, 265.5, 267, 268.5, 270, 271.5, 273, 274.5, 276, 277.5, 279, 280.5, 282, 283.5, 285, 286.5, 288, 289.5, 291, 292.5, 294, 295.5, 297, 298.5, 300, 301.5, 303, 304.5, 306, 307.5, 309, 310.5, 312, 313.5, 315, 316.5, 318, 319.5, 321, 322.5, 324, 325.5, 327, 328.5, 330, 331.5, 333, 334.5, 336, 337.5, 339, 340.5, 342, 343.5, 345, 346.5, 348, 349.5, 351, 352.5, 354, 355.5, 357, 358.5}; stat = nc_put_var_float(ncid, lon_id, lon); check_err(stat,__LINE__,__FILE__); } { /* store lvl */ float lvl[] = {1000, 995, 990, 985, 975, 950, 925, 900, 875, 850, 800, 750, 700, 600, 500, 450, 400, 350, 300, 275, 250, 225, 200, 175, 150, 100, 70, 50, 30, 20, 10}; stat = nc_put_var_float(ncid, lvl_id, lvl); check_err(stat,__LINE__,__FILE__); } { /* store sfc_pres */ size_t sfc_pres_start[RANK_sfc_pres]; size_t sfc_pres_count[RANK_sfc_pres]; float sfc_pres[LON_LEN*LAT_LEN]; for(ii = 0; ii < LAT_LEN * LON_LEN; ii++) { sfc_pres[ii] = 6; } sfc_pres_start[0] = 0; sfc_pres_start[1] = 0; sfc_pres_start[2] = 0; sfc_pres_count[0] = time_len; sfc_pres_count[1] = lat_len; sfc_pres_count[2] = lon_len; stat = nc_put_vara_float(ncid, sfc_pres_id, sfc_pres_start, sfc_pres_count, sfc_pres); check_err(stat,__LINE__,__FILE__); } { /* store temp_scrn */ size_t temp_scrn_start[RANK_temp_scrn]; size_t temp_scrn_count[RANK_temp_scrn]; float temp_scrn[LON_LEN*LAT_LEN]; for(ii = 0; ii < LAT_LEN * LON_LEN; ii++) { temp_scrn[ii] = 11; } temp_scrn_start[0] = 0; temp_scrn_start[1] = 0; temp_scrn_start[2] = 0; temp_scrn_count[0] = time_len; temp_scrn_count[1] = lat_len; temp_scrn_count[2] = lon_len; stat = nc_put_vara_float(ncid, temp_scrn_id, temp_scrn_start, temp_scrn_count, temp_scrn); check_err(stat,__LINE__,__FILE__); } { /* store qsair_scrn */ size_t qsair_scrn_start[RANK_qsair_scrn]; size_t qsair_scrn_count[RANK_qsair_scrn]; float qsair_scrn[LON_LEN*LAT_LEN]; for(ii = 0; ii < LAT_LEN * LON_LEN; ii++) { qsair_scrn[ii] = 22; } qsair_scrn_start[0] = 0; qsair_scrn_start[1] = 0; qsair_scrn_start[2] = 0; qsair_scrn_count[0] = time_len; qsair_scrn_count[1] = lat_len; qsair_scrn_count[2] = lon_len; stat = nc_put_vara_float(ncid, qsair_scrn_id, qsair_scrn_start, qsair_scrn_count, qsair_scrn); check_err(stat,__LINE__,__FILE__); } { /* store topog */ size_t topog_start[RANK_topog]; size_t topog_count[RANK_topog]; float topog[LON_LEN*LAT_LEN]; for(ii = 0; ii < LAT_LEN * LON_LEN; ii++) { topog[ii] = 33; } topog_start[0] = 0; topog_start[1] = 0; topog_start[2] = 0; topog_count[0] = time_len; topog_count[1] = lat_len; topog_count[2] = lon_len; stat = nc_put_vara_float(ncid, topog_id, topog_start, topog_count, topog); check_err(stat,__LINE__,__FILE__); } { /* store mslp */ size_t mslp_start[RANK_mslp]; size_t mslp_count[RANK_mslp]; float mslp[LON_LEN*LAT_LEN]; for(ii = 0; ii < LAT_LEN * LON_LEN; ii++) { mslp[ii] = 44; } mslp_start[0] = 0; mslp_start[1] = 0; mslp_start[2] = 0; mslp_count[0] = time_len; mslp_count[1] = lat_len; mslp_count[2] = lon_len; stat = nc_put_vara_float(ncid, mslp_id, mslp_start, mslp_count, mslp); check_err(stat,__LINE__,__FILE__); } { /* store sfc_temp */ size_t sfc_temp_start[RANK_sfc_temp]; size_t sfc_temp_count[RANK_sfc_temp]; float sfc_temp[LON_LEN*LAT_LEN]; for(ii = 0; ii < LAT_LEN * LON_LEN; ii++) { sfc_temp[ii] = 55; } sfc_temp_start[0] = 0; sfc_temp_start[1] = 0; sfc_temp_start[2] = 0; sfc_temp_count[0] = time_len; sfc_temp_count[1] = lat_len; sfc_temp_count[2] = lon_len; stat = nc_put_vara_float(ncid, sfc_temp_id, sfc_temp_start, sfc_temp_count, sfc_temp); check_err(stat,__LINE__,__FILE__); } { /* store zonal_wnd */ /* Bug exposed when written in reverse order. */ for(i = LVL_LEN - 1; i>=0; i--) /* for(i = 0; i < LVL_LEN; i++) */ { int izw; for(izw = 0; izw < TIME_LEN * LAT_LEN * LON_LEN; izw++) { zonal_wnd[izw] = 100 + i; } zonal_wnd_start[0] = 0; zonal_wnd_start[1] = i; zonal_wnd_start[2] = 0; zonal_wnd_start[3] = 0; zonal_wnd_count[0] = time_len; zonal_wnd_count[1] = 1; zonal_wnd_count[2] = lat_len; zonal_wnd_count[3] = lon_len; stat = nc_put_vara_float(ncid, zonal_wnd_id, zonal_wnd_start, zonal_wnd_count, zonal_wnd); check_err(stat,__LINE__,__FILE__); } } stat = nc_close(ncid); check_err(stat,__LINE__,__FILE__); return 0; } int main(int argc, char **argv) { size_t sizehint = 2100000; /* default if not set on command line, * exposes bug. It turns out any * value between 2091953 and 2150032 * triggers bug, whereas all other * values work fine. */ if (argc > 1) { char *endptr, *str = argv[1]; errno = 0; sizehint = strtol(str, &endptr, 0); /* check for various possible errors */ if ((errno == ERANGE && (sizehint == LONG_MAX || sizehint == LONG_MIN)) || (errno != 0 && sizehint == 0)) { perror("strtol"); exit(EXIT_FAILURE); } if (endptr == str) { fprintf(stderr, "No digits were found\n"); exit(EXIT_FAILURE); } } printf("\n*** Testing nofill mode.\n"); { printf("*** Create file in nofill mode, writing all values..."); if (create_file(FILE_NAME1, NC_NOFILL, &sizehint)) ERR; SUMMARIZE_ERR; } { printf("*** Create file with same data in fill mode, writing all values..."); if (create_file(FILE_NAME2, NC_FILL, &sizehint)) ERR; SUMMARIZE_ERR; } { int ncid1, ncid2; int nvars1, nvars2; int varid; int badvars; printf("*** Compare values in nofill mode and fill mode files..."); /* compare data in two files created with nofill mode and fill * mode, which should be identical if all the data were written */ if (nc_open(FILE_NAME1, NC_NOWRITE, &ncid1)) ERR; if (nc_open(FILE_NAME2, NC_NOWRITE, &ncid2)) ERR; if (nc_inq_nvars(ncid1, &nvars1)) ERR; if (nc_inq_nvars(ncid2, &nvars2)) ERR; if (nvars1 != nvars2) ERR; badvars = 0; for(varid = 0; varid < nvars1; varid++) { size_t nvals, nn; int ndims, *dimids, dim; nc_type vtype; char varname1[NC_MAX_NAME]; char varname2[NC_MAX_NAME]; /* How many values in this variable to compare? */ if (nc_inq_varndims(ncid1, varid, &ndims)) ERR; dimids = malloc((ndims + 1) * sizeof(int)); if (!dimids) ERR; if (nc_inq_vardimid (ncid1, varid, dimids)) ERR; nvals = 1; for(dim = 0; dim < ndims; dim++) { size_t len; if (nc_inq_dimlen(ncid1, dimids[dim], &len)) ERR; nvals *= len; } if (nc_inq_vartype(ncid1, varid, &vtype)) ERR; if (nc_inq_varname(ncid1, varid, varname1)) ERR; if (nc_inq_varname(ncid1, varid, varname2)) ERR; if (vtype != NC_CHAR) { /* numeric data, just read in as doubles */ double *data1, *data2; /* Allocate space to hold values in both files */ data1 = malloc((nvals + 1) * sizeof(double)); if (!data1) ERR; data2 = malloc((nvals + 1) * sizeof(double)); if (!data2) ERR; /* Read in values */ if (nc_get_var_double(ncid1, varid, data1)) ERR; if (nc_get_var_double(ncid2, varid, data2)) ERR; /* Compare values */ for(nn = 0; nn < nvals; nn++) { if (data1[nn] != data2[nn]) { badvars++; fprintf(stderr, "\tFrom nofill file, %s[%d] = %.15g\tFrom fill file, %s[%d] = %.15g\n", varname1, nn, data1[nn], varname2, nn, data2[nn]); break; }; } free(data1); free(data2); } else { /* character data */ char *data1, *data2; /* Allocate space to hold values in both files */ data1 = malloc((nvals + 1) * sizeof(char)); if (!data1) ERR; data2 = malloc((nvals + 1) * sizeof(char)); if (!data2) ERR; /* Read in values */ if (nc_get_var_text(ncid1, varid, data1)) ERR; if (nc_get_var_text(ncid2, varid, data2)) ERR; /* Compare values */ for(nn = 0; nn < nvals; nn++) { if (data1[nn] != data2[nn]) { badvars++; fprintf(stderr, "\tFrom nofill file, %s[%d] = %d\tFrom fill file, %s[%d] = %d\n", varname1, nn, data1[nn], varname2, nn, data2[nn]); break; }; } free(data1); free(data2); } free(dimids); } if(badvars > 0) ERR; if (nc_close(ncid1)) ERR; if (nc_close(ncid2)) ERR; SUMMARIZE_ERR; } FINAL_RESULTS; }