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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.
48 lines
981 B
C
48 lines
981 B
C
/*********************************************************************
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* Copyright 2018, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*********************************************************************/
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#include "config.h"
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#include <stdarg.h>
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#include <stdio.h>
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#if !defined _WIN32 && !defined __CYGWIN__
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#include <execinfo.h>
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#endif
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#include "hdf5debug.h"
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#ifdef H5CATCH
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#define STSIZE 1000
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static void* stacktrace[STSIZE];
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int
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nch5breakpoint(int err)
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{
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#if !defined _WIN32 && !defined __CYGWIN__
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int count = 0;
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char** trace = NULL;
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int i;
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count = backtrace(stacktrace,STSIZE);
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trace = backtrace_symbols(stacktrace, STSIZE);
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fprintf(stderr,"backtrace:\n");
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for(i=0;i<count;i++)
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fprintf(stderr,"[%03d] %s\n",i,trace[i]);
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#if 0
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if(trace != NULL) free(trace);
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#endif
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#endif
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return err;
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}
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int
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nch5throw(int err)
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{
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if(err == 0) return err;
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return nch5breakpoint(err);
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}
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#endif
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