netcdf-c/include/nc4dispatch.h

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/* Copyright 2018-2018 University Corporation for Atmospheric
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Research/Unidata. */
/**
* @file
* @internal Includes prototypes for libsrc4 dispatch functions.
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*
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* @author Dennis Heimbigner, Ed Hartnett
*/
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#ifndef _NC4DISPATCH_H
#define _NC4DISPATCH_H
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#include "config.h"
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#include <stddef.h> /* size_t, ptrdiff_t */
#include "ncdispatch.h"
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#define NCLOGLEVELENV "NETCDF_LOG_LEVEL"
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#if defined(__cplusplus)
extern "C" {
#endif
EXTERNL int
NC4_create(const char *path, int cmode,
size_t initialsz, int basepe, size_t *chunksizehintp,
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void* parameters, const NC_Dispatch*, int);
EXTERNL int
NC4_open(const char *path, int mode,
int basepe, size_t *chunksizehintp,
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void* parameters, const NC_Dispatch*, int);
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EXTERNL int
NC4_redef(int ncid);
EXTERNL int
NC4__enddef(int ncid, size_t h_minfree, size_t v_align,
size_t v_minfree, size_t r_align);
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EXTERNL int
NC4_sync(int ncid);
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EXTERNL int
NC4_abort(int ncid);
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EXTERNL int
NC4_close(int ncid,void*);
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EXTERNL int
NC4_set_fill(int ncid, int fillmode, int *old_modep);
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EXTERNL int
NC4_inq_format(int ncid, int *formatp);
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EXTERNL int
NC4_inq_format_extended(int ncid, int *formatp, int *modep);
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EXTERNL int
NC4_inq(int ncid, int *ndimsp, int *nvarsp, int *nattsp, int *unlimdimidp);
EXTERNL int
NC4_inq_type(int, nc_type, char *, size_t *);
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/* Begin _dim */
EXTERNL int
NC4_inq_dimid(int ncid, const char *name, int *idp);
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EXTERNL int
NC4_inq_unlimdim(int ncid, int *unlimdimidp);
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/* End _dim */
/* Begin _att */
EXTERNL int
NC4_inq_att(int ncid, int varid, const char *name,
nc_type *xtypep, size_t *lenp);
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EXTERNL int
NC4_inq_attid(int ncid, int varid, const char *name, int *idp);
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EXTERNL int
NC4_inq_attname(int ncid, int varid, int attnum, char *name);
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/* End _att */
/* Begin {put,get}_att */
EXTERNL int
NC4_get_att(int ncid, int varid, const char *name, void *value, nc_type);
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/* End {put,get}_att */
/* Begin _var */
EXTERNL int
NC4_def_var(int ncid, const char *name,
nc_type xtype, int ndims, const int *dimidsp, int *varidp);
EXTERNL int
NC4_inq_var_all(int ncid, int varid, char *name, nc_type *xtypep,
int *ndimsp, int *dimidsp, int *nattsp,
int *shufflep, int *deflatep, int *deflate_levelp,
int *fletcher32p, int *contiguousp, size_t *chunksizesp,
int *no_fill, void *fill_valuep, int *endiannessp,
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unsigned int* idp, size_t* nparamsp, unsigned int* params);
EXTERNL int
NC4_inq_varid(int ncid, const char *name, int *varidp);
EXTERNL int
NC4_rename_var(int ncid, int varid, const char *name);
EXTERNL int
NC4_put_vara(int ncid, int varid,
const size_t *start, const size_t *count,
const void *value, nc_type);
EXTERNL int
NC4_get_vara(int ncid, int varid,
const size_t *start, const size_t *count,
void *value, nc_type);
extern int
NC4_put_vars(int ncid, int varid,
const size_t *start, const size_t *count, const ptrdiff_t* stride,
const void *value, nc_type);
extern int
NC4_get_vars(int ncid, int varid,
const size_t *start, const size_t *count, const ptrdiff_t* stride,
void *value, nc_type);
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/* End _var */
/* netCDF4 API only */
EXTERNL int
NC4_var_par_access(int, int, int);
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EXTERNL int
NC4_inq_ncid(int, const char *, int *);
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EXTERNL int
NC4_inq_grps(int, int *, int *);
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EXTERNL int
NC4_inq_grpname(int, char *);
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EXTERNL int
NC4_inq_grpname_full(int, size_t *, char *);
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EXTERNL int
NC4_inq_grp_parent(int, int *);
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EXTERNL int
NC4_inq_grp_full_ncid(int, const char *, int *);
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EXTERNL int
NC4_inq_varids(int, int * nvars, int *);
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EXTERNL int
NC4_inq_dimids(int, int * ndims, int *, int);
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EXTERNL int
NC4_inq_typeids(int, int * ntypes, int *);
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EXTERNL int
NC4_inq_type_equal(int, nc_type, int, nc_type, int *);
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EXTERNL int
NC4_def_grp(int, const char *, int *);
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EXTERNL int
NC4_rename_grp(int, const char *);
EXTERNL int
NC4_inq_user_type(int, nc_type, char *, size_t *, nc_type *,
size_t *, int *);
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EXTERNL int
NC4_def_compound(int, size_t, const char *, nc_type *);
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EXTERNL int
NC4_insert_compound(int, nc_type, const char *, size_t, nc_type);
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EXTERNL int
NC4_insert_array_compound(int, nc_type, const char *, size_t,
nc_type, int, const int *);
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EXTERNL int
NC4_inq_typeid(int, const char *, nc_type *);
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EXTERNL int
NC4_inq_compound_field(int, nc_type, int, char *, size_t *,
nc_type *, int *, int *);
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EXTERNL int
NC4_inq_compound_fieldindex(int, nc_type, const char *, int *);
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EXTERNL int
NC4_def_vlen(int, const char *, nc_type base_typeid, nc_type *);
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EXTERNL int
NC4_put_vlen_element(int, int, void *, size_t, const void *);
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EXTERNL int
NC4_get_vlen_element(int, int, const void *, size_t *, void *);
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EXTERNL int
NC4_def_enum(int, nc_type, const char *, nc_type *);
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EXTERNL int
NC4_insert_enum(int, nc_type, const char *, const void *);
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EXTERNL int
NC4_inq_enum_member(int, nc_type, int, char *, void *);
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EXTERNL int
NC4_inq_enum_ident(int, nc_type, long long, char *);
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EXTERNL int
NC4_def_opaque(int, size_t, const char *, nc_type *);
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EXTERNL int
NC4_def_var_deflate(int, int, int, int, int);
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EXTERNL int
NC4_def_var_fletcher32(int, int, int);
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EXTERNL int
NC4_def_var_chunking(int, int, int, const size_t *);
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EXTERNL int
NC4_def_var_fill(int, int, int, const void *);
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EXTERNL int
NC4_def_var_endian(int, int, int);
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EXTERNL int
NC4_def_var_filter(int, int, unsigned int, size_t, const unsigned int*);
EXTERNL int
NC4_get_var_chunk_cache(int, int, size_t *, size_t *, float *);
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EXTERNL int
NC4_inq_unlimdims(int, int *, int *);
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EXTERNL int
NC4_show_metadata(int);
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Add support for multiple filters per variable. re: https://github.com/Unidata/netcdf-c/issues/1584 Support has been added for multiple filters per variable. This affects a number of components in netcdf. The new APIs are documented in NUG/filters.md. The primary changes are: * A set of new functions are provided (see __include/netcdf_filter.h__). - Obtain a list of the filters associated with a variable - Obtain the parameters for a specific filter. * The existing __nc_inq_var_filter__ function now returns info about the first defined filter. * The utilities (ncgen, ncdump, and nccopy) now support an extended format for specifying a sequence of filters. The general form is __<filter>|<filter>..._. * The ncdump **_Filter** attribute now dumps a list of all the filters associated with a variable using the above new format. * Filter specifications can now use a filter name instead of number for filters known to the netcdf library, which in turn is taken from the HDF5 filter registration page. * New errors are defined: NC_EFILTER and NC_ENOFILTER. The latter is returned if an attempt is made to access an unknown filter. * Internally, the dispatch table has been extended to add a function to handle all of the filter functions. * New, filter-related, tests were added to nc_test4. * A new plugin was added to the plugins directory to help with testing. Notes: 1. The shuffle and fletcher32 filters are not part of the multifilter system. Misc. changes: 1. A debug module was added to libhdf5 to help catch error locations.
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EXTERNL int
This PR adds EXPERIMENTAL support for accessing data in the cloud using a variant of the Zarr protocol and storage format. This enhancement is generically referred to as "NCZarr". The data model supported by NCZarr is netcdf-4 minus the user-defined types and the String type. In this sense it is similar to the CDF-5 data model. More detailed information about enabling and using NCZarr is described in the document NUG/nczarr.md and in a [Unidata Developer's blog entry](https://www.unidata.ucar.edu/blogs/developer/en/entry/overview-of-zarr-support-in). WARNING: this code has had limited testing, so do use this version for production work. Also, performance improvements are ongoing. Note especially the following platform matrix of successful tests: Platform | Build System | S3 support ------------------------------------ Linux+gcc | Automake | yes Linux+gcc | CMake | yes Visual Studio | CMake | no Additionally, and as a consequence of the addition of NCZarr, major changes have been made to the Filter API. NOTE: NCZarr does not yet support filters, but these changes are enablers for that support in the future. Note that it is possible (probable?) that there will be some accidental reversions if the changes here did not correctly mimic the existing filter testing. In any case, previously filter ids and parameters were of type unsigned int. In order to support the more general zarr filter model, this was all converted to char*. The old HDF5-specific, unsigned int operations are still supported but they are wrappers around the new, char* based nc_filterx_XXX functions. This entailed at least the following changes: 1. Added the files libdispatch/dfilterx.c and include/ncfilter.h 2. Some filterx utilities have been moved to libdispatch/daux.c 3. A new entry, "filter_actions" was added to the NCDispatch table and the version bumped. 4. An overly complex set of structs was created to support funnelling all of the filterx operations thru a single dispatch "filter_actions" entry. 5. Move common code to from libhdf5 to libsrc4 so that it is accessible to nczarr. Changes directly related to Zarr: 1. Modified CMakeList.txt and configure.ac to support both C and C++ -- this is in support of S3 support via the awd-sdk libraries. 2. Define a size64_t type to support nczarr. 3. More reworking of libdispatch/dinfermodel.c to support zarr and to regularize the structure of the fragments section of a URL. Changes not directly related to Zarr: 1. Make client-side filter registration be conditional, with default off. 2. Hack include/nc4internal.h to make some flags added by Ed be unique: e.g. NC_CREAT, NC_INDEF, etc. 3. cleanup include/nchttp.h and libdispatch/dhttp.c. 4. Misc. changes to support compiling under Visual Studio including: * Better testing under windows for dirent.h and opendir and closedir. 5. Misc. changes to the oc2 code to support various libcurl CURLOPT flags and to centralize error reporting. 6. By default, suppress the vlen tests that have unfixed memory leaks; add option to enable them. 7. Make part of the nc_test/test_byterange.sh test be contingent on remotetest.unidata.ucar.edu being accessible. Changes Left TO-DO: 1. fix provenance code, it is too HDF5 specific.
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NC4_filter_actions(int, int, int, void*);
Add support for multiple filters per variable. re: https://github.com/Unidata/netcdf-c/issues/1584 Support has been added for multiple filters per variable. This affects a number of components in netcdf. The new APIs are documented in NUG/filters.md. The primary changes are: * A set of new functions are provided (see __include/netcdf_filter.h__). - Obtain a list of the filters associated with a variable - Obtain the parameters for a specific filter. * The existing __nc_inq_var_filter__ function now returns info about the first defined filter. * The utilities (ncgen, ncdump, and nccopy) now support an extended format for specifying a sequence of filters. The general form is __<filter>|<filter>..._. * The ncdump **_Filter** attribute now dumps a list of all the filters associated with a variable using the above new format. * Filter specifications can now use a filter name instead of number for filters known to the netcdf library, which in turn is taken from the HDF5 filter registration page. * New errors are defined: NC_EFILTER and NC_ENOFILTER. The latter is returned if an attempt is made to access an unknown filter. * Internally, the dispatch table has been extended to add a function to handle all of the filter functions. * New, filter-related, tests were added to nc_test4. * A new plugin was added to the plugins directory to help with testing. Notes: 1. The shuffle and fletcher32 filters are not part of the multifilter system. Misc. changes: 1. A debug module was added to libhdf5 to help catch error locations.
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#if defined(__cplusplus)
}
#endif
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#endif /*_NC4DISPATCH_H */