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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.
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*********************************************************************
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* Copyright 2009, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*********************************************************************/
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#ifndef NCOFFSETS_H
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#define NCOFFSETS_H 1
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/* Define indices for every primitive C type */
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/* NAT => NOT-A-TYPE*/
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#define NC_NATINDEX 0
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#define NC_CHARINDEX 1
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#define NC_UCHARINDEX 2
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#define NC_SHORTINDEX 3
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#define NC_USHORTINDEX 4
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#define NC_INTINDEX 5
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#define NC_UINTINDEX 6
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#define NC_LONGINDEX 7
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#define NC_ULONGINDEX 8
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#define NC_LONGLONGINDEX 9
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#define NC_ULONGLONGINDEX 10
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#define NC_FLOATINDEX 11
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#define NC_DOUBLEINDEX 12
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#define NC_PTRINDEX 13
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#define NC_NCVLENINDEX 14
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#define NC_NCTYPES 15
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typedef struct NCalignment {
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char* type_name;
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size_t alignment;
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} NCalignment;
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typedef NCalignment NCtypealignvec;
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/* Capture in struct and in a vector*/
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typedef struct NCtypealignset {
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NCalignment charalign; /* char*/
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NCalignment ucharalign; /* unsigned char*/
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NCalignment shortalign; /* short*/
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NCalignment ushortalign; /* unsigned short*/
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NCalignment intalign; /* int*/
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NCalignment uintalign; /* unsigned int*/
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NCalignment longalign; /* long*/
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NCalignment ulongalign; /* unsigned long*/
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NCalignment longlongalign; /* long long*/
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NCalignment ulonglongalign; /* unsigned long long*/
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NCalignment floatalign; /* float*/
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NCalignment doublealign; /* double*/
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NCalignment ptralign; /* void**/
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NCalignment ncvlenalign; /* nc_vlen_t*/
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} NCtypealignset;
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size_t NC_class_alignment(int ncclass);
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void NC_compute_alignments(void);
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int NC_alignments_computed;
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#endif /*NCOFFSETS_H*/
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