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94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
/*
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This file is part of netcdf-4, a netCDF-like interface for HDF5, or a
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HDF5 backend for netCDF, depending on your point of view.
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This file handles the nc_ calls, calling the appropriate nc3 or nc4
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function, depending on ncid.
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Copyright 2003, University Corporation for Atmospheric Research. See
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netcdf-4/docs/COPYRIGHT file for copying and redistribution
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conditions.
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*/
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#include "nc4internal.h"
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#include "nc3dispatch.h"
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/* This will return the length of a netcdf data type in bytes. Since
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we haven't added any new types, I just call the v3 function.
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Ed Hartnett 10/43/03
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*/
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/* This function only does anything for netcdf-3 files. */
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int
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NC4_set_base_pe(int ncid, int pe)
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{
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return NC_ENOTNC3;
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}
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/* This function only does anything for netcdf-3 files. */
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int
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NC4_inq_base_pe(int ncid, int *pe)
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{
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return NC_ENOTNC3;
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}
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/* Get the format (i.e. classic, 64-bit-offset, or netcdf-4) of an
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* open file. */
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int
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NC4_inq_format(int ncid, int *formatp)
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{
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NC *nc;
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NC_HDF5_FILE_INFO_T* nc4_info;
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LOG((2, "nc_inq_format: ncid 0x%x", ncid));
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if (!formatp)
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return NC_NOERR;
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/* Find the file metadata. */
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if (!(nc = nc4_find_nc_file(ncid,&nc4_info)))
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return NC_EBADID;
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#if 0 /*def USE_PNETCDF*/
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/* Take care of files created/opened with parallel-netcdf library. */
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if (nc4_info->pnetcdf_file)
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return ncmpi_inq_format(nc->int_ncid, formatp);
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#endif /* USE_PNETCDF */
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/* Otherwise, this is a netcdf-4 file. Check if classic NC3 rules
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* are in effect for this file. */
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if (nc4_info->cmode & NC_CLASSIC_MODEL)
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*formatp = NC_FORMAT_NETCDF4_CLASSIC;
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else
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*formatp = NC_FORMAT_NETCDF4;
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return NC_NOERR;
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}
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/* Get the extended format of an open file. */
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int
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NC4_inq_format_extended(int ncid, int *formatp, int *modep)
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{
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NC *nc;
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NC_HDF5_FILE_INFO_T* h5;
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LOG((2, "nc_inq_format_extended: ncid 0x%x", ncid));
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/* Find the file metadata. */
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if (!(nc = nc4_find_nc_file(ncid,&h5)))
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return NC_EBADID;
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if(modep) *modep = (nc->mode|NC_NETCDF4);
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if(formatp) {
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#ifdef USE_HDF4
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/* Distinguish HDF5 from HDF4 */
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*formatp = (h5->hdf4 ? NC_FORMAT_NC_HDF4 : NC_FORMAT_NC_HDF5);
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#else /* USE_HDF4 */
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*formatp = NC_FORMAT_NC_HDF5;
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#endif /* USE_HDF4 */
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}
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return NC_NOERR;
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}
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