00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011 #include <shogun/lib/config.h>
00012
00013 #ifdef HAVE_HDF5
00014 #include <stdio.h>
00015 #include <stdlib.h>
00016 #include <string.h>
00017 #include <hdf5.h>
00018
00019 #include "lib/HDF5File.h"
00020
00021 #include "features/StringFeatures.h"
00022 #include "features/SparseFeatures.h"
00023
00024 using namespace shogun;
00025
00026 CHDF5File::CHDF5File(void)
00027 {
00028 SG_UNSTABLE("CHDF5File::CHDF5File(void)", "\n");
00029
00030 get_boolean_type();
00031 h5file = -1;
00032 }
00033
00034 CHDF5File::CHDF5File(char* fname, char rw, const char* name) : CFile()
00035 {
00036 get_boolean_type();
00037 H5Eset_auto(NULL, NULL);
00038
00039 if (name)
00040 set_variable_name(name);
00041
00042 switch (rw)
00043 {
00044 case 'r':
00045 h5file = H5Fopen(fname, H5F_ACC_RDONLY, H5P_DEFAULT);
00046 break;
00047 case 'w':
00048 h5file = H5Fcreate(fname, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
00049 break;
00050 case 'a':
00051 h5file = H5Fopen(fname, H5F_ACC_RDWR, H5P_DEFAULT);
00052 if (h5file <0)
00053 h5file = H5Fcreate(fname, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
00054 break;
00055 default:
00056 SG_ERROR("unknown mode '%c'\n", rw);
00057 };
00058
00059 if (h5file<0)
00060 SG_ERROR("Could not open file '%s'\n", fname);
00061 }
00062
00063 CHDF5File::~CHDF5File()
00064 {
00065 H5Fclose(h5file);
00066 }
00067
00068 #define GET_VECTOR(fname, sg_type, datatype) \
00069 void CHDF5File::fname(sg_type*& vec, int32_t& len) \
00070 { \
00071 if (!h5file) \
00072 SG_ERROR("File invalid.\n"); \
00073 \
00074 int32_t* dims; \
00075 int32_t ndims; \
00076 int64_t nelements; \
00077 hid_t dataset = H5Dopen(h5file, variable_name); \
00078 if (dataset<0) \
00079 SG_ERROR("Error opening data set\n"); \
00080 hid_t dtype = H5Dget_type(dataset); \
00081 H5T_class_t t_class=H5Tget_class(dtype); \
00082 TSGDataType t datatype; hid_t h5_type=get_compatible_type(t_class, &t); \
00083 if (h5_type==-1) \
00084 { \
00085 H5Dclose(dataset); \
00086 SG_INFO("No compatible datatype found\n"); \
00087 } \
00088 get_dims(dataset, dims, ndims, nelements); \
00089 if (!((ndims==2 && dims[0]==nelements && dims[1]==1) || \
00090 (ndims==2 && dims[0]==1 && dims[1]==nelements) || \
00091 (ndims==1 && dims[0]==nelements))) \
00092 SG_ERROR("Error not a 1-dimensional vector (ndims=%d, dims[0]=%d)\n", ndims, dims[0]); \
00093 vec=new sg_type[nelements]; \
00094 len=nelements; \
00095 herr_t status = H5Dread(dataset, h5_type, H5S_ALL, \
00096 H5S_ALL, H5P_DEFAULT, vec); \
00097 H5Dclose(dataset); \
00098 H5Tclose(dtype); \
00099 delete[] dims; \
00100 if (status<0) \
00101 { \
00102 delete[] vec; \
00103 SG_ERROR("Error reading dataset\n"); \
00104 } \
00105 }
00106
00107 GET_VECTOR(get_bool_vector, bool, (CT_VECTOR, ST_NONE, PT_BOOL))
00108 GET_VECTOR(get_byte_vector, uint8_t, (CT_VECTOR, ST_NONE, PT_UINT8))
00109 GET_VECTOR(get_char_vector, char, (CT_VECTOR, ST_NONE, PT_CHAR))
00110 GET_VECTOR(get_int_vector, int32_t, (CT_VECTOR, ST_NONE, PT_INT32))
00111 GET_VECTOR(get_shortreal_vector, float32_t, (CT_VECTOR, ST_NONE, PT_FLOAT32))
00112 GET_VECTOR(get_real_vector, float64_t, (CT_VECTOR, ST_NONE, PT_FLOAT64))
00113 GET_VECTOR(get_short_vector, int16_t, (CT_VECTOR, ST_NONE, PT_INT16))
00114 GET_VECTOR(get_word_vector, uint16_t, (CT_VECTOR, ST_NONE, PT_INT16))
00115 #undef GET_VECTOR
00116
00117 #define GET_MATRIX(fname, sg_type, datatype) \
00118 void CHDF5File::fname(sg_type*& matrix, int32_t& num_feat, int32_t& num_vec) \
00119 { \
00120 if (!h5file) \
00121 SG_ERROR("File invalid.\n"); \
00122 \
00123 int32_t* dims; \
00124 int32_t ndims; \
00125 int64_t nelements; \
00126 hid_t dataset = H5Dopen(h5file, variable_name); \
00127 if (dataset<0) \
00128 SG_ERROR("Error opening data set\n"); \
00129 hid_t dtype = H5Dget_type(dataset); \
00130 H5T_class_t t_class=H5Tget_class(dtype); \
00131 TSGDataType t datatype; hid_t h5_type=get_compatible_type(t_class, &t); \
00132 if (h5_type==-1) \
00133 { \
00134 H5Dclose(dataset); \
00135 SG_INFO("No compatible datatype found\n"); \
00136 } \
00137 get_dims(dataset, dims, ndims, nelements); \
00138 if (ndims!=2) \
00139 SG_ERROR("Error not a 2-dimensional matrix\n"); \
00140 matrix=new sg_type[nelements]; \
00141 num_feat=dims[0]; \
00142 num_vec=dims[1]; \
00143 herr_t status = H5Dread(dataset, h5_type, H5S_ALL, \
00144 H5S_ALL, H5P_DEFAULT, matrix); \
00145 H5Dclose(dataset); \
00146 H5Tclose(dtype); \
00147 delete[] dims; \
00148 if (status<0) \
00149 { \
00150 delete[] matrix; \
00151 SG_ERROR("Error reading dataset\n"); \
00152 } \
00153 }
00154
00155 GET_MATRIX(get_bool_matrix, bool, (CT_MATRIX, ST_NONE, PT_BOOL))
00156 GET_MATRIX(get_char_matrix, char, (CT_MATRIX, ST_NONE, PT_CHAR))
00157 GET_MATRIX(get_byte_matrix, uint8_t, (CT_MATRIX, ST_NONE, PT_UINT8))
00158 GET_MATRIX(get_int_matrix, int32_t, (CT_MATRIX, ST_NONE, PT_INT32))
00159 GET_MATRIX(get_uint_matrix, uint32_t, (CT_MATRIX, ST_NONE, PT_INT32))
00160 GET_MATRIX(get_long_matrix, int64_t, (CT_MATRIX, ST_NONE, PT_INT64))
00161 GET_MATRIX(get_ulong_matrix, uint64_t, (CT_MATRIX, ST_NONE, PT_INT64))
00162 GET_MATRIX(get_short_matrix, int16_t, (CT_MATRIX, ST_NONE, PT_INT16))
00163 GET_MATRIX(get_word_matrix, uint16_t, (CT_MATRIX, ST_NONE, PT_INT16))
00164 GET_MATRIX(get_shortreal_matrix, float32_t, (CT_MATRIX, ST_NONE, PT_FLOAT32))
00165 GET_MATRIX(get_real_matrix, float64_t, (CT_MATRIX, ST_NONE, PT_FLOAT64))
00166 GET_MATRIX(get_longreal_matrix, floatmax_t, (CT_MATRIX, ST_NONE, PT_FLOATMAX))
00167 #undef GET_MATRIX
00168
00169 void CHDF5File::get_byte_ndarray(uint8_t*& array, int32_t*& dims, int32_t& num_dims)
00170 {
00171 }
00172
00173 void CHDF5File::get_char_ndarray(char*& array, int32_t*& dims, int32_t& num_dims)
00174 {
00175 }
00176
00177 void CHDF5File::get_int_ndarray(int32_t*& array, int32_t*& dims, int32_t& num_dims)
00178 {
00179 }
00180
00181 void CHDF5File::get_shortreal_ndarray(float32_t*& array, int32_t*& dims, int32_t& num_dims)
00182 {
00183 }
00184
00185 void CHDF5File::get_real_ndarray(float64_t*& array, int32_t*& dims, int32_t& num_dims)
00186 {
00187 }
00188
00189 void CHDF5File::get_short_ndarray(int16_t*& array, int32_t*& dims, int32_t& num_dims)
00190 {
00191 }
00192
00193 void CHDF5File::get_word_ndarray(uint16_t*& array, int32_t*& dims, int32_t& num_dims)
00194 {
00195 }
00196
00197 #define GET_SPARSEMATRIX(fname, sg_type, datatype) \
00198 void CHDF5File::fname(TSparse<sg_type>*& matrix, int32_t& num_feat, int32_t& num_vec) \
00199 { \
00200 if (!(file)) \
00201 SG_ERROR("File invalid.\n"); \
00202 }
00203 GET_SPARSEMATRIX(get_bool_sparsematrix, bool, DT_SPARSE_BOOL)
00204 GET_SPARSEMATRIX(get_char_sparsematrix, char, DT_SPARSE_CHAR)
00205 GET_SPARSEMATRIX(get_byte_sparsematrix, uint8_t, DT_SPARSE_BYTE)
00206 GET_SPARSEMATRIX(get_int_sparsematrix, int32_t, DT_SPARSE_INT)
00207 GET_SPARSEMATRIX(get_uint_sparsematrix, uint32_t, DT_SPARSE_UINT)
00208 GET_SPARSEMATRIX(get_long_sparsematrix, int64_t, DT_SPARSE_LONG)
00209 GET_SPARSEMATRIX(get_ulong_sparsematrix, uint64_t, DT_SPARSE_ULONG)
00210 GET_SPARSEMATRIX(get_short_sparsematrix, int16_t, DT_SPARSE_SHORT)
00211 GET_SPARSEMATRIX(get_word_sparsematrix, uint16_t, DT_SPARSE_WORD)
00212 GET_SPARSEMATRIX(get_shortreal_sparsematrix, float32_t, DT_SPARSE_SHORTREAL)
00213 GET_SPARSEMATRIX(get_real_sparsematrix, float64_t, DT_SPARSE_REAL)
00214 GET_SPARSEMATRIX(get_longreal_sparsematrix, floatmax_t, DT_SPARSE_LONGREAL)
00215 #undef GET_SPARSEMATRIX
00216
00217
00218 #define GET_STRING_LIST(fname, sg_type, datatype) \
00219 void CHDF5File::fname(TString<sg_type>*& strings, int32_t& num_str, int32_t& max_string_len) \
00220 { \
00221 }
00222
00223 GET_STRING_LIST(get_bool_string_list, bool, DT_STRING_BOOL)
00224 GET_STRING_LIST(get_char_string_list, char, DT_STRING_CHAR)
00225 GET_STRING_LIST(get_byte_string_list, uint8_t, DT_STRING_BYTE)
00226 GET_STRING_LIST(get_int_string_list, int32_t, DT_STRING_INT)
00227 GET_STRING_LIST(get_uint_string_list, uint32_t, DT_STRING_UINT)
00228 GET_STRING_LIST(get_long_string_list, int64_t, DT_STRING_LONG)
00229 GET_STRING_LIST(get_ulong_string_list, uint64_t, DT_STRING_ULONG)
00230 GET_STRING_LIST(get_short_string_list, int16_t, DT_STRING_SHORT)
00231 GET_STRING_LIST(get_word_string_list, uint16_t, DT_STRING_WORD)
00232 GET_STRING_LIST(get_shortreal_string_list, float32_t, DT_STRING_SHORTREAL)
00233 GET_STRING_LIST(get_real_string_list, float64_t, DT_STRING_REAL)
00234 GET_STRING_LIST(get_longreal_string_list, floatmax_t, DT_STRING_LONGREAL)
00235 #undef GET_STRING_LIST
00236
00239 #define SET_VECTOR(fname, sg_type, dtype, h5type) \
00240 void CHDF5File::fname(const sg_type* vec, int32_t len) \
00241 { \
00242 if (h5file<0 || !vec) \
00243 SG_ERROR("File or vector invalid.\n"); \
00244 \
00245 create_group_hierarchy(); \
00246 \
00247 hsize_t dims=(hsize_t) len; \
00248 hid_t dataspace, dataset, status; \
00249 dataspace=H5Screate_simple(1, &dims, NULL); \
00250 if (dataspace<0) \
00251 SG_ERROR("Could not create hdf5 dataspace\n"); \
00252 dataset=H5Dcreate(h5file, variable_name, h5type, dataspace, H5P_DEFAULT); \
00253 if (dataset<0) \
00254 { \
00255 SG_ERROR("Could not create hdf5 dataset - does" \
00256 " dataset '%s' already exist?\n", variable_name); \
00257 } \
00258 status=H5Dwrite(dataset, h5type, H5S_ALL, H5S_ALL, H5P_DEFAULT, vec); \
00259 if (status<0) \
00260 SG_ERROR("Failed to write hdf5 dataset\n"); \
00261 H5Dclose(dataset); \
00262 H5Sclose(dataspace); \
00263 }
00264 SET_VECTOR(set_bool_vector, bool, DT_VECTOR_BOOL, boolean_type)
00265 SET_VECTOR(set_byte_vector, uint8_t, DT_VECTOR_BYTE, H5T_NATIVE_UINT8)
00266 SET_VECTOR(set_char_vector, char, DT_VECTOR_CHAR, H5T_NATIVE_CHAR)
00267 SET_VECTOR(set_int_vector, int32_t, DT_VECTOR_INT, H5T_NATIVE_INT32)
00268 SET_VECTOR(set_shortreal_vector, float32_t, DT_VECTOR_SHORTREAL, H5T_NATIVE_FLOAT)
00269 SET_VECTOR(set_real_vector, float64_t, DT_VECTOR_REAL, H5T_NATIVE_DOUBLE)
00270 SET_VECTOR(set_short_vector, int16_t, DT_VECTOR_SHORT, H5T_NATIVE_INT16)
00271 SET_VECTOR(set_word_vector, uint16_t, DT_VECTOR_WORD, H5T_NATIVE_UINT16)
00272 #undef SET_VECTOR
00273
00274 #define SET_MATRIX(fname, sg_type, dtype, h5type) \
00275 void CHDF5File::fname(const sg_type* matrix, int32_t num_feat, int32_t num_vec) \
00276 { \
00277 if (h5file<0 || !matrix) \
00278 SG_ERROR("File or matrix invalid.\n"); \
00279 \
00280 create_group_hierarchy(); \
00281 \
00282 hsize_t dims[2]={(hsize_t) num_feat, (hsize_t) num_vec}; \
00283 hid_t dataspace, dataset, status; \
00284 dataspace=H5Screate_simple(2, dims, NULL); \
00285 if (dataspace<0) \
00286 SG_ERROR("Could not create hdf5 dataspace\n"); \
00287 dataset=H5Dcreate(h5file, variable_name, h5type, dataspace, H5P_DEFAULT); \
00288 if (dataset<0) \
00289 { \
00290 SG_ERROR("Could not create hdf5 dataset - does" \
00291 " dataset '%s' already exist?\n", variable_name); \
00292 } \
00293 status=H5Dwrite(dataset, h5type, H5S_ALL, H5S_ALL, H5P_DEFAULT, matrix); \
00294 if (status<0) \
00295 SG_ERROR("Failed to write hdf5 dataset\n"); \
00296 H5Dclose(dataset); \
00297 H5Sclose(dataspace); \
00298 }
00299 SET_MATRIX(set_bool_matrix, bool, DT_DENSE_BOOL, boolean_type)
00300 SET_MATRIX(set_char_matrix, char, DT_DENSE_CHAR, H5T_NATIVE_CHAR)
00301 SET_MATRIX(set_byte_matrix, uint8_t, DT_DENSE_BYTE, H5T_NATIVE_UINT8)
00302 SET_MATRIX(set_int_matrix, int32_t, DT_DENSE_INT, H5T_NATIVE_INT32)
00303 SET_MATRIX(set_uint_matrix, uint32_t, DT_DENSE_UINT, H5T_NATIVE_UINT32)
00304 SET_MATRIX(set_long_matrix, int64_t, DT_DENSE_LONG, H5T_NATIVE_INT64)
00305 SET_MATRIX(set_ulong_matrix, uint64_t, DT_DENSE_ULONG, H5T_NATIVE_UINT64)
00306 SET_MATRIX(set_short_matrix, int16_t, DT_DENSE_SHORT, H5T_NATIVE_INT16)
00307 SET_MATRIX(set_word_matrix, uint16_t, DT_DENSE_WORD, H5T_NATIVE_UINT16)
00308 SET_MATRIX(set_shortreal_matrix, float32_t, DT_DENSE_SHORTREAL, H5T_NATIVE_FLOAT)
00309 SET_MATRIX(set_real_matrix, float64_t, DT_DENSE_REAL, H5T_NATIVE_DOUBLE)
00310 SET_MATRIX(set_longreal_matrix, floatmax_t, DT_DENSE_LONGREAL, H5T_NATIVE_LDOUBLE)
00311 #undef SET_MATRIX
00312
00313 #define SET_SPARSEMATRIX(fname, sg_type, dtype) \
00314 void CHDF5File::fname(const TSparse<sg_type>* matrix, \
00315 int32_t num_feat, int32_t num_vec) \
00316 { \
00317 if (!(file && matrix)) \
00318 SG_ERROR("File or matrix invalid.\n"); \
00319 \
00320 }
00321 SET_SPARSEMATRIX(set_bool_sparsematrix, bool, DT_SPARSE_BOOL)
00322 SET_SPARSEMATRIX(set_char_sparsematrix, char, DT_SPARSE_CHAR)
00323 SET_SPARSEMATRIX(set_byte_sparsematrix, uint8_t, DT_SPARSE_BYTE)
00324 SET_SPARSEMATRIX(set_int_sparsematrix, int32_t, DT_SPARSE_INT)
00325 SET_SPARSEMATRIX(set_uint_sparsematrix, uint32_t, DT_SPARSE_UINT)
00326 SET_SPARSEMATRIX(set_long_sparsematrix, int64_t, DT_SPARSE_LONG)
00327 SET_SPARSEMATRIX(set_ulong_sparsematrix, uint64_t, DT_SPARSE_ULONG)
00328 SET_SPARSEMATRIX(set_short_sparsematrix, int16_t, DT_SPARSE_SHORT)
00329 SET_SPARSEMATRIX(set_word_sparsematrix, uint16_t, DT_SPARSE_WORD)
00330 SET_SPARSEMATRIX(set_shortreal_sparsematrix, float32_t, DT_SPARSE_SHORTREAL)
00331 SET_SPARSEMATRIX(set_real_sparsematrix, float64_t, DT_SPARSE_REAL)
00332 SET_SPARSEMATRIX(set_longreal_sparsematrix, floatmax_t, DT_SPARSE_LONGREAL)
00333 #undef SET_SPARSEMATRIX
00334
00335 #define SET_STRING_LIST(fname, sg_type, dtype) \
00336 void CHDF5File::fname(const TString<sg_type>* strings, int32_t num_str) \
00337 { \
00338 if (!(file && strings)) \
00339 SG_ERROR("File or strings invalid.\n"); \
00340 \
00341 }
00342 SET_STRING_LIST(set_bool_string_list, bool, DT_STRING_BOOL)
00343 SET_STRING_LIST(set_char_string_list, char, DT_STRING_CHAR)
00344 SET_STRING_LIST(set_byte_string_list, uint8_t, DT_STRING_BYTE)
00345 SET_STRING_LIST(set_int_string_list, int32_t, DT_STRING_INT)
00346 SET_STRING_LIST(set_uint_string_list, uint32_t, DT_STRING_UINT)
00347 SET_STRING_LIST(set_long_string_list, int64_t, DT_STRING_LONG)
00348 SET_STRING_LIST(set_ulong_string_list, uint64_t, DT_STRING_ULONG)
00349 SET_STRING_LIST(set_short_string_list, int16_t, DT_STRING_SHORT)
00350 SET_STRING_LIST(set_word_string_list, uint16_t, DT_STRING_WORD)
00351 SET_STRING_LIST(set_shortreal_string_list, float32_t, DT_STRING_SHORTREAL)
00352 SET_STRING_LIST(set_real_string_list, float64_t, DT_STRING_REAL)
00353 SET_STRING_LIST(set_longreal_string_list, floatmax_t, DT_STRING_LONGREAL)
00354 #undef SET_STRING_LIST
00355
00356 void CHDF5File::get_boolean_type()
00357 {
00358 boolean_type=H5T_NATIVE_UCHAR;
00359 switch (sizeof(bool))
00360 {
00361 case 1:
00362 boolean_type = H5T_NATIVE_UCHAR;
00363 break;
00364 case 2:
00365 boolean_type = H5T_NATIVE_UINT16;
00366 break;
00367 case 4:
00368 boolean_type = H5T_NATIVE_UINT32;
00369 break;
00370 case 8:
00371 boolean_type = H5T_NATIVE_UINT64;
00372 break;
00373 default:
00374 SG_ERROR("Boolean type not supported on this platform\n");
00375 }
00376 }
00377
00378 hid_t CHDF5File::get_compatible_type(H5T_class_t t_class,
00379 const TSGDataType* datatype)
00380 {
00381 switch (t_class)
00382 {
00383 case H5T_FLOAT:
00384 case H5T_INTEGER:
00385 switch (datatype->m_ptype)
00386 {
00387 case PT_BOOL: return boolean_type;
00388 case PT_CHAR: return H5T_NATIVE_CHAR;
00389 case PT_INT8: return H5T_NATIVE_INT8;
00390 case PT_UINT8: return H5T_NATIVE_UINT8;
00391 case PT_INT16: return H5T_NATIVE_INT16;
00392 case PT_UINT16: return H5T_NATIVE_UINT16;
00393 case PT_INT32: return H5T_NATIVE_INT32;
00394 case PT_UINT32: return H5T_NATIVE_UINT32;
00395 case PT_INT64: return H5T_NATIVE_INT64;
00396 case PT_UINT64: return H5T_NATIVE_UINT64;
00397 case PT_FLOAT32: return H5T_NATIVE_FLOAT;
00398 case PT_FLOAT64: return H5T_NATIVE_DOUBLE;
00399 case PT_FLOATMAX: return H5T_NATIVE_LDOUBLE;
00400 case PT_SGOBJECT:
00401 SG_ERROR("Implementation error during writing "
00402 "HDF5File!");
00403 return -1;
00404 }
00405 case H5T_STRING:
00406 SG_ERROR("Strings not supported");
00407 return -1;
00408 case H5T_VLEN:
00409 SG_ERROR("Variable length containers currently not supported");
00410 return -1;
00411 case H5T_ARRAY:
00412 SG_ERROR("Array containers currently not supported");
00413 return -1;
00414 default:
00415 SG_ERROR("Datatype mismatchn");
00416 return -1;
00417 }
00418 }
00419
00420 void CHDF5File::get_dims(hid_t dataset, int32_t*& dims, int32_t& ndims, int64_t& total_elements)
00421 {
00422 hid_t dataspace = H5Dget_space(dataset);
00423 if (dataspace<0)
00424 SG_ERROR("Error obtaining hdf5 dataspace\n");
00425
00426 ndims = H5Sget_simple_extent_ndims(dataspace);
00427 total_elements=H5Sget_simple_extent_npoints(dataspace);
00428 hsize_t* dims_out=new hsize_t[ndims];
00429 dims=new int32_t[ndims];
00430 H5Sget_simple_extent_dims(dataspace, dims_out, NULL);
00431 for (int32_t i=0; i<ndims; i++)
00432 dims[i]=dims_out[i];
00433 delete[] dims_out;
00434 H5Sclose(dataspace);
00435 }
00436
00437 void CHDF5File::create_group_hierarchy()
00438 {
00439 char* vname=strdup(variable_name);
00440 int32_t vlen=strlen(vname);
00441 for (int32_t i=0; i<vlen; i++)
00442 {
00443 if (i!=0 && vname[i]=='/')
00444 {
00445 vname[i]='\0';
00446 hid_t g = H5Gopen(h5file, vname);
00447 if (g<0)
00448 {
00449 g=H5Gcreate(h5file, vname, 0);
00450 if (g<0)
00451 SG_ERROR("Error creating group '%s'\n", vname);
00452 vname[i]='/';
00453 }
00454 H5Gclose(g);
00455 }
00456 }
00457 free(vname);
00458 }
00459 #endif // HDF5
