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751300ec59
This is a follow up to PR https://github.com/Unidata/netcdf-c/pull/1173 Sorry that it is so big, but leak suppression can be complex. This PR fixes all remaining memory leaks -- as determined by -fsanitize=address, and with the exceptions noted below. Unfortunately. there remains a significant leak that I cannot solve. It involves vlens, and it is unclear if the leak is occurring in the netcdf-c library or the HDF5 library. I have added a check_PROGRAM to the ncdump directory to show the problem. The program is called tst_vlen_demo.c To exercise it, build the netcdf library with -fsanitize=address enabled. Then go into ncdump and do a "make clean check". This should build tst_vlen_demo without actually executing it. Then do the command "./tst_vlen_demo" to see the output of the memory checker. Note the the lost malloc is deep in the HDF5 library (in H5Tvlen.c). I am temporarily working around this error in the following way. 1. I modified several test scripts to not execute known vlen tests that fail as described above. 2. Added an environment variable called NC_VLEN_NOTEST. If set, then those specific tests are suppressed. This should mean that the --disable-utilities option to ./configure should not need to be set to get a memory leak clean build. This should allow for detection of any new leaks. Note: I used an environment variable rather than a ./configure option to control the vlen tests. This is because it is temporary (I hope) and because it is a bit tricky for shell scripts to access ./configure options. Finally, as before, this only been tested with netcdf-4 and hdf5 support.
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*********************************************************************
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* Copyright 1993, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*********************************************************************/
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#ifndef DUMP_H
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#define DUMP_H
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typedef struct Dimschema {
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int dimid;
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/* int cloneid;*/
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size_t size;
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char name[NC_MAX_NAME+1];
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} Dim;
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typedef struct Varschema {
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int varid;
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/* int cloneid;*/
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char name[NC_MAX_NAME+1];
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nc_type nctype;
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int ndims;
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int dimids[NC_MAX_VAR_DIMS];
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size_t nelems; /*# elements*/
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size_t alloc; /* malloc size*/
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int natts;
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NCattribute* atts;
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} Var;
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typedef struct NChdr {
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int ncid;
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int format;
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int ndims;
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int nvars;
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int ngatts;
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int unlimid; /* id of the (1) unlimited dimension*/
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Dim* dims;
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Var* vars;
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NCattribute* gatts;
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NCbytes* content;
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} NChdr;
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extern int dumpmetadata(int ncid, NChdr**);
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extern void dumpdata1(nc_type nctype, size_t index, char* data);
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extern char* dumppath(struct CDFnode* node);
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extern char* dumptree(CDFnode* root);
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extern char* dumpvisible(CDFnode* root);
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extern char* dumpnode(CDFnode* node);
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extern char* dumpalign(struct NCD2alignment*);
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extern char* dumpcachenode(NCcachenode* node);
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extern char* dumpcache(NCcache* cache);
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extern int dumpmetadata(int ncid, NChdr** hdrp);
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extern void dumpdata1(nc_type nctype, size_t index, char* data);
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extern char* dumpprojections(NClist* projections);
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extern char* dumpprojection(DCEprojection* proj);
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extern char* dumpselections(NClist* selections);
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extern char* dumpselection(DCEselection* sel);
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extern char* dumpconstraint(DCEconstraint* con);
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extern char* dumpsegments(NClist* segments);
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extern char* dumpslice(DCEslice* slice);
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extern char* dumpslices(DCEslice* slice, unsigned int rank);
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extern void dumpraw(void*);
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extern void dumplistraw(NClist*);
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#endif /*DUMP_H*/
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