diff options
Diffstat (limited to 'src/H5Fdeprec.c')
| -rw-r--r-- | src/H5Fdeprec.c | 174 |
1 files changed, 132 insertions, 42 deletions
diff --git a/src/H5Fdeprec.c b/src/H5Fdeprec.c index 03f5df8..a047161 100644 --- a/src/H5Fdeprec.c +++ b/src/H5Fdeprec.c @@ -35,11 +35,14 @@ /***********/ /* Headers */ /***********/ -#include "H5private.h" /* Generic Functions */ -#include "H5Eprivate.h" /* Error handling */ -#include "H5Fpkg.h" /* File access */ -#include "H5Iprivate.h" /* IDs */ -#include "H5SMprivate.h" /* Shared object header messages */ +#include "H5private.h" /* Generic Functions */ +#include "H5CXprivate.h" /* API Contexts */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5Fpkg.h" /* File access */ +#include "H5Iprivate.h" /* IDs */ +#include "H5SMprivate.h" /* Shared object header messages */ + +#include "H5VLnative_private.h" /* Native VOL connector */ /****************/ @@ -83,23 +86,21 @@ * Function: H5Fget_info1 * * Purpose: Gets general information about the file, including: - * 1. Get storage size for superblock extension if there is one. + * 1. Get storage size for superblock extension if there is one. * 2. Get the amount of btree and heap storage for entries * in the SOHM table if there is one. - * 3. The amount of free space tracked in the file. - * - * Return: Success: non-negative on success - * Failure: Negative + * 3. The amount of free space tracked in the file. * - * Programmer: Vailin Choi - * July 11, 2007 + * Return: SUCCEED/FAIL * *------------------------------------------------------------------------- */ herr_t H5Fget_info1(hid_t obj_id, H5F_info1_t *finfo) { - H5F_t *f; /* Top file in mount hierarchy */ + H5VL_object_t *vol_obj = NULL; + H5I_type_t type; + H5F_info2_t finfo2; /* Current file info struct */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) @@ -109,39 +110,128 @@ H5Fget_info1(hid_t obj_id, H5F_info1_t *finfo) if(!finfo) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no info struct") - /* For file IDs, get the file object directly */ - /* (This prevents the H5G_loc() call from returning the file pointer for - * the top file in a mount hierarchy) - */ - if(H5I_get_type(obj_id) == H5I_FILE ) { - if(NULL == (f = (H5F_t *)H5I_object(obj_id))) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file") - } /* end if */ - else { - H5G_loc_t loc; /* Object location */ - - /* Get symbol table entry */ - if(H5G_loc(obj_id, &loc) < 0) - HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a valid object ID") - f = loc.oloc->file; - } /* end else */ - HDassert(f->shared); - - /* Reset file info struct */ - HDmemset(finfo, 0, sizeof(*finfo)); - - /* Get the size of the superblock extension */ - if(H5F__super_size(f, H5AC_ind_read_dxpl_id, NULL, &finfo->super_ext_size) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "Unable to retrieve superblock extension size") - - /* Check for SOHM info */ - if(H5F_addr_defined(f->shared->sohm_addr)) - if(H5SM_ih_size(f, H5AC_ind_read_dxpl_id, &finfo->sohm.hdr_size, &finfo->sohm.msgs_info) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "Unable to retrieve SOHM index & heap storage info") + /* Check the type */ + type = H5I_get_type(obj_id); + if(H5I_FILE != type && H5I_GROUP != type && H5I_DATATYPE != type && H5I_DATASET != type && H5I_ATTR != type) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object") + + /* Get the file object */ + if(NULL == (vol_obj = H5VL_vol_object(obj_id))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid object identifier") + + /* Get the file information */ + if(H5VL_file_optional(vol_obj, H5VL_NATIVE_FILE_GET_INFO, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, type, &finfo2) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to retrieve file info") + + /* Copy the compatible fields into the older struct */ + finfo->super_ext_size = finfo2.super.super_ext_size; + finfo->sohm.hdr_size = finfo2.sohm.hdr_size; + finfo->sohm.msgs_info = finfo2.sohm.msgs_info; done: FUNC_LEAVE_API(ret_value) } /* end H5Fget_info1() */ + +/*------------------------------------------------------------------------- + * Function: H5Fis_hdf5 + * + * Purpose: Check the file signature to detect an HDF5 file. + * + * Bugs: This function is not robust: it only uses the default file + * driver when attempting to open the file when in fact it + * should use all known file drivers. + * + * Return: TRUE/FALSE/FAIL + * + *------------------------------------------------------------------------- + */ +htri_t +H5Fis_hdf5(const char *name) +{ + htri_t ret_value; /* Return value */ + + FUNC_ENTER_API((-1)) + H5TRACE1("t", "*s", name); + + /* Check args and all the boring stuff. */ + if(!name || !*name) + HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, (-1), "no file name specified") + + /* Check if file is accessible */ + if(H5VL_file_specific(NULL, H5VL_FILE_IS_ACCESSIBLE, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, H5P_FILE_ACCESS_DEFAULT, name, &ret_value) < 0) + HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, (-1), "unable to determine if file is accessible as HDF5") + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Fis_hdf5() */ + + +/*------------------------------------------------------------------------- + * Function: H5Fset_latest_format + * + * Purpose: Enable switching between latest or non-latest format while + * a file is open. + * This is deprecated starting release 1.10.2 and is modified + * to call the private H5F_set_libver_bounds() to set the + * bounds. + * + * Before release 1.10.2, the library supports only two + * combinations of low/high bounds: + * (earliest, latest) + * (latest, latest) + * Thus, this public routine does the job in switching + * between the two combinations listed above. + * + * Starting release 1.10.2, we add v18 to the enumerated + * define H5F_libver_t and the library supports five combinations + * as below: + * (earliest, v18) + * (earliest, v10) + * (v18, v18) + * (v18, v10) + * (v10, v10) + * So we introduce the new public routine H5Fset_libver_bounds() + * in place of H5Fset_latest_format(). + * See also RFC: Setting Bounds for Object Creation in HDF5 1.10.0. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Vailin Choi; December 2017 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Fset_latest_format(hid_t file_id, hbool_t latest_format) +{ + H5VL_object_t *vol_obj; /* File as VOL object */ + H5F_libver_t low = H5F_LIBVER_LATEST; /* Low bound */ + H5F_libver_t high = H5F_LIBVER_LATEST; /* High bound */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE2("e", "ib", file_id, latest_format); + + /* Check args */ + if(NULL == (vol_obj = (H5VL_object_t *)H5I_object_verify(file_id, H5I_FILE))) + HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "not a file ID") + + /* Set up collective metadata if appropriate */ + if(H5CX_set_loc(file_id) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "can't set collective metadata read info") + + /* 'low' and 'high' are both initialized to LATEST. + * If latest format is not expected, set 'low' to EARLIEST + */ + if(!latest_format) + low = H5F_LIBVER_EARLIEST; + + /* Set the library's version bounds */ + if(H5VL_file_optional(vol_obj, H5VL_NATIVE_FILE_SET_LIBVER_BOUNDS, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, (int)low, (int)high) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "can't set library version bounds") + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Fset_latest_format() */ #endif /* H5_NO_DEPRECATED_SYMBOLS */ |