netcdf-c/include/netcdf_meta.h.in
Dennis Heimbigner aeb3ac2809 Mostly revert the filter code to reduce its complexity of use.
re: https://github.com/Unidata/netcdf-c/issues/1836

Revert the internal filter code to simplify it. From the user's
point of view, the only visible changes should be:

1. The functions that convert text to filter specs have had their signature reverted and have been moved to netcdf_aux.h
2. Some filter API functions now return NC_ENOFILTER when inquiry is made about some filter.

Internally,the dispatch table has been modified to get rid of the filter_actions
entry and associated complex structures. It has been replaced with
inq_var_filter_ids and inq_var_filter_info entries and the dispatch table
version has been bumped to 3. Corresponding NOOP and NOTNC4 functions
were added to libdispatch/dnotnc4.c. Also, the filter_action entries
in dispatch tables were replaced for all dispatch code bases (HDF5, DAP2,
etc). This should only impact UDF users.

In the process, it became clear that the form of the filters
field in NC_VAR_INFO_T was format dependent, so I converted it to
be of type void* and pushed its management into the various dispatch
code bases. Specifically libhdf5 and libnczarr now manage the filters
field in their own way.

The auxilliary functions for parsing textual filter specifications
were moved to netcdf_aux.h and were renamed to the following:
* ncaux_h5filterspec_parse
* ncaux_h5filterspec_parselist
* ncaux_h5filterspec_free
* ncaux_h5filter_fix8

Misc. Other Changes:

1. Document NUG/filters.md updated to reflect the changes above.
2. All the old data types (structs and enums)
   used by filter_actions actions were deleted.
   The exception is the NC_H5_Filterspec because it is needed
   by ncaux_h5filterspec_parselist.
3. Clientside filters were removed -- another enhancement
   for which no-one ever asked.
4. The ability to remove filters was itself removed.
5. Some functionality needed by nczarr was moved from libhdf5
   to libsrc4 e.g. nc4_find_default_chunksizes
6. All the filterx code was removed
7. ncfilter.h and nc4filter.c no longer used

Misc. Unrelated Changes:

1. The nczarr_test makefile clean was leaving some directories; so
   add clean-local to take care of them.
2020-09-27 12:43:46 -06:00

67 lines
3.0 KiB
C

/*! \file netcdf_meta.h
*
* Meta information for libnetcdf which can be used by other packages which
* depend on libnetcdf.
*
* This file is automatically generated by the build system
* at configure time, and contains information related to
* how libnetcdf was built. It will not be required to
* include this file unless you want to probe the capabilities
* of libnetcdf. This should ideally only happen when configuring
* a project which depends on libnetcdf. At configure time,
* the dependent project can set its own macros which can be used
* in conditionals.
*
* Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
* 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
* 2015, 2016, 2017, 2018
* University Corporation for Atmospheric Research/Unidata.
*
* See \ref copyright file for more info.
*/
#ifndef NETCDF_META_H
#define NETCDF_META_H
#define NC_VERSION_MAJOR @NC_VERSION_MAJOR@ /*!< netcdf-c major version. */
#define NC_VERSION_MINOR @NC_VERSION_MINOR@ /*!< netcdf-c minor version. */
#define NC_VERSION_PATCH @NC_VERSION_PATCH@ /*!< netcdf-c patch version. */
#define NC_VERSION_NOTE "@NC_VERSION_NOTE@" /*!< netcdf-c note. May be blank. */
/*! netcdf-c version string.
*
* The format of the netcdf-c version string is as follows:
* \code
* NC_VERSION_MAJOR.NC_VERSION_MINOR.NC_VERSION_PATCH.NC_VERSION_NOTE
* \endcode
* Note that the trailing NC_VERSION_NOTE may be empty. It serves for
* identifiers such as '-rc1', etc.
*/
#define NC_VERSION "@NC_VERSION@"
#define NC_HAS_NC2 @NC_HAS_NC2@ /*!< API version 2 support. */
#define NC_HAS_NC4 @NC_HAS_NC4@ /*!< API version 4 support. */
#define NC_HAS_HDF4 @NC_HAS_HDF4@ /*!< HDF4 support. */
#define NC_HAS_HDF5 @NC_HAS_HDF5@ /*!< HDF5 support. */
#define NC_HAS_SZIP @NC_HAS_SZIP@ /*!< szip support (HDF5 only) */
#define NC_HAS_SZIP_WRITE @NC_HAS_SZIP@ /*!< szip write support (HDF5 only) */
#define NC_HAS_DAP2 @NC_HAS_DAP2@ /*!< DAP2 support. */
#define NC_HAS_DAP4 @NC_HAS_DAP4@ /*!< DAP4 support. */
#define NC_HAS_BYTERANGE @HAS_BYTERANGE@
#define NC_HAS_DISKLESS @NC_HAS_DISKLESS@ /*!< diskless support. */
#define NC_HAS_MMAP @NC_HAS_MMAP@ /*!< mmap support. */
#define NC_HAS_JNA @NC_HAS_JNA@ /*!< jna support. */
#define NC_HAS_PNETCDF @NC_HAS_PNETCDF@ /*!< PnetCDF support. */
#define NC_HAS_PARALLEL4 @NC_HAS_PARALLEL4@ /*!< parallel IO support via HDF5 */
#define NC_HAS_PARALLEL @NC_HAS_PARALLEL@ /*!< parallel IO support via HDF5 and/or PnetCDF. */
#define NC_HAS_CDF5 @NC_HAS_CDF5@ /*!< CDF5 support. */
#define NC_HAS_ERANGE_FILL @NC_HAS_ERANGE_FILL@ /*!< ERANGE_FILL Support */
#define NC_RELAX_COORD_BOUND 1 /*!< RELAX_COORD_BOUND */
#define NC_DISPATCH_VERSION @NC_DISPATCH_VERSION@ /*!< Dispatch table version */
#define NC_HAS_PAR_FILTERS @NC_HAS_PAR_FILTERS@ /* Parallel I/O with filter support. */
#define NC_HAS_NCZARR @NC_HAS_NCZARR@
#define NC_HAS_MULTIFILTERS @NC_HAS_MULTIFILTERS@
#endif