This commit adds three new tests:
- a test documenting the limitation originally reported in #350 (in
general modifying an attribute about 2^16 times makes it impossible
to modify this file in ways requiring nc_redef() and nc_enddef() calls).
- a test ensuring that a scalar attribute can be modified 2^16 times
as long as its type and size remain the same
- a test ensuring that a text attribute can be modified 2^16 times as
long as its size remains the same
This version uses the nc_redef(), nc_put_att_...(), nc_enddef()
sequence. One could also use nc_open(), nc_put_att_...(), nc_close()
but that would make these tests significantly slower.
* For URL paths, the new approach essentially centralizes all information
in the URL into the "#mode=" fragment key and uses that value
to determine the dispatcher for (most) URLs.
* The new approach has the following steps:
1. canonicalize the path if it is a URL.
2. use the mode= fragment key to determine the dispatcher
3. if dispatcher still not determined, then use the mode flags
argument to nc_open/nc_create to determine the dispatcher.
4. if the path points to something readable, attempt to read the
magic number at the front, and use that to determine the dispatcher.
this case may override all previous cases.
* Misc changes.
1. Update documentation
2. Moved some unit tests from libdispatch to unit_test directory.
3. Fixed use of wrong #ifdef macro in test_filter_reg.c
[I think this may fix an previously reported esupport query].
supercede PR: https://github.com/Unidata/netcdf-c/pull/1384
Since we have an mmap user, undeprecate it and make sure
it works. Other changes:
* fix test cases to work with make -j
* fix exposed ncgen error.
Priority: Low
re: issue https://github.com/Unidata/netcdf-c/issues/1329
HDF5 has the ability to programmatically define new filters,
as opposed to using HDF5_PLUGIN_PATH env variable.
This PR adds support for that feature.
Not clear how useful this is, though.
See docs/filters.md for details.
re: https://github.com/Unidata/netcdf-c/issues/1347
It turns out that the plugin libraries (bzip2 and misc) were
being installed as part of 'make installed'. This was not intended
behavior. But after some discussion in the above issue, it was decided
to install the bzip2 plugin. However, in order to avoid naming conflicts,
the plugin is installed under the name 'libh5bzip2.so'.
Note that this is automake behavior only; the install does not
(yet) occur using cmake.
Misc. unrelated changes
-----------------------
1. turn off some debug output in ncdump/Makefile.am
re: https://github.com/Unidata/netcdf-c/pull/1337
tst_filterparser was creating but not using the baseline
array. Instead, it did the same thing inline. Fixed code
to use baseline array.
A user suggested that the nccopy -F option
syntax should be extended to support specification
of multiple (or all) variables in a single -F option.
The new syntax allows:
1. '*' as the name of the variable; this means apply the
filter to all variables in the data set.
2. *var1|var2|...* as the variable name to indicate that the filter
should be applied to the multiple specified variables.
re: issue https://github.com/Unidata/netcdf-c/issues/1278
re: issue https://github.com/Unidata/netcdf-c/issues/876
re: issue https://github.com/Unidata/netcdf-c/issues/806
* Major change to the handling of 8-byte parameters for nc_def_var_filter.
The old code was not well thought out.
* The new algorithm is documented in docs/filters.md.
* Added new utility file plugins/H5Zutil.c to support
* Modified plugins/H5Zmisc.c to use new algorithm
the new algorithm.
* Renamed include/ncfilter.h to include/netcdf_filter.h
and made it an installed header so clients can access the
new algorithm utility.
* Fixed nc_test4/tst_filterparser.c and nc_test4/test_filter_misc.c
to use the new algorithm
* libdap4/ fixes:
* d4swap.c has an error in the endian pre-processing such
that record counts were not being swapped correctly.
* d4data.c had an error in that checksums were being computed
after endian swapping rather than before.
* ocinitialize() was never being called, so xxdr bigendian handling
was never set correctly.
* Required adding debug statements to occompile
* Found and fixed memory leak in ncdump.c
Not tested:
* HDF4
* Pnetcdf
* parallel HDF5
