netcdf-c/libsrc4/nc4dispatch.c

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/* Copyright 2005-2018 University Corporation for Atmospheric
Research/Unidata. */
/**
* @file
* @internal This header file contains libsrc4 dispatch
* initialization, user-defined format, and logging prototypes and
* macros.
*
* @author Dennis Heimbigner, Ed Hartnett
*/
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#include "config.h"
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#include <stdlib.h>
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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#include "netcdf.h"
#include "nc4internal.h"
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#include "nc4dispatch.h"
Primary change: add dap4 support Specific changes: 1. Add dap4 code: libdap4 and dap4_test. Note that until the d4ts server problem is solved, dap4 is turned off. 2. Modify various files to support dap4 flags: configure.ac, Makefile.am, CMakeLists.txt, etc. 3. Add nc_test/test_common.sh. This centralizes the handling of the locations of various things in the build tree: e.g. where is ncgen.exe located. See nc_test/test_common.sh for details. 4. Modify .sh files to use test_common.sh 5. Obsolete separate oc2 by moving it to be part of netcdf-c. This means replacing code with netcdf-c equivalents. 5. Add --with-testserver to configure.ac to allow override of the servers to be used for --enable-dap-remote-tests. 6. There were multiple versions of nctypealignment code. Try to centralize in libdispatch/doffset.c and include/ncoffsets.h 7. Add a unit test for the ncuri code because of its complexity. 8. Move the findserver code out of libdispatch and into a separate, self contained program in ncdap_test and dap4_test. 9. Move the dispatch header files (nc{3,4}dispatch.h) to .../include because they are now shared by modules. 10. Revamp the handling of TOPSRCDIR and TOPBUILDDIR for shell scripts. 11. Make use of MREMAP if available 12. Misc. minor changes e.g. - #include <config.h> -> #include "config.h" - Add some no-install headers to /include - extern -> EXTERNL and vice versa as needed - misc header cleanup - clean up checking for misc. unix vs microsoft functions 13. Change copyright decls in some files to point to LICENSE file. 14. Add notes to RELEASENOTES.md
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#include "nc.h"
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/* If user-defined formats are in use, we need to declare their
* dispatch tables. */
#ifdef USE_UDF0
extern NC_Dispatch UDF0_DISPATCH;
#endif /* USE_UDF0 */
#ifdef USE_UDF1
extern NC_Dispatch UDF1_DISPATCH;
#endif /* USE_UDF1 */
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#ifdef USE_NETCDF4
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/* Pointers to dispatch tables for user-defined formats. */
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extern NC_Dispatch *UDF0_dispatch_table;
extern NC_Dispatch *UDF1_dispatch_table;
#endif /* USE_NETCDF4 */
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/**
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* @internal Initialize netCDF-4. If user-defined format(s) have been
* specified in configure, load their dispatch table(s).
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*
* @return ::NC_NOERR No error.
* @author Dennis Heimbigner
*/
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int
NC4_initialize(void)
{
int ret = NC_NOERR;
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#ifdef USE_UDF0
/* If user-defined format 0 was specified during configure, set up
* it's dispatch table. */
if ((ret = nc_def_user_format(NC_UDF0, UDF0_DISPATCH_FUNC, NULL)))
return ret;
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#endif /* USE_UDF0 */
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#ifdef USE_UDF1
/* If user-defined format 0 was specified during configure, set up
* it's dispatch table. */
if ((ret = nc_def_user_format(NC_UDF1F, &UDF1_DISPATCH_FUNC, NULL)))
return ret;
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#endif /* USE_UDF0 */
#ifdef LOGGING
if(getenv(NCLOGLEVELENV) != NULL) {
char* slevel = getenv(NCLOGLEVELENV);
long level = atol(slevel);
if(level >= 0)
nc_set_log_level((int)level);
}
#endif
return ret;
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}
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/**
* @internal Finalize netCDF-4.
*
* @return ::NC_NOERR No error.
* @author Dennis Heimbigner
*/
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int
NC4_finalize(void)
{
return NC_NOERR;
}