mirror of
https://github.com/Unidata/netcdf-c.git
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eb3d9eb0c9
Primary changes: * Add an improved cache system to speed up performance. * Fix NCZarr to properly handle scalar variables. Misc. Related Changes: * Added unit tests for extendible hash and for the generic cache. * Add config parameter to set size of the NCZarr cache. * Add initial performance tests but leave them unused. * Add CRC64 support. * Move location of ncdumpchunks utility from /ncgen to /ncdump. * Refactor auth support. Misc. Unrelated Changes: * More cleanup of the S3 support * Add support for S3 authentication in .rc files: HTTP.S3.ACCESSID and HTTP.S3.SECRETKEY. * Remove the hashkey from the struct OBJHDR since it is never used.
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* Copyright 2018-2018 University Corporation for Atmospheric
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Research/Unidata. */
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/**
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* @file
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* @internal Contains information for creating provenance
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* info and/or displaying provenance info.
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*
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* It has come to pass that we can't guarantee that this information is
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* contained only within netcdf4 files. As a result, we need
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* to make printing these hidden attributes available to
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* netcdf3 as well.
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*
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*
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* For netcdf4 files, capture state information about the following:
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* - Global: netcdf library version
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* - Global: hdf5 library version | nczarr library versions
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* - Global: any parameters specified by the --with-ncproperties option for ./configure
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* - Per file: superblock version
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* - Per File: was it created by netcdf-4?
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* - Per file: _NCProperties attribute
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*
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* @author Dennis Heimbigner, Ward Fisher
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*
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*/
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#ifndef _NCPROVENANCE_
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#define _NCPROVENANCE_
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#define NCPROPS "_NCProperties"
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#define NCPVERSION "version" /* Of the properties format */
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#define NCPHDF5LIB1 "hdf5libversion"
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#define NCPNCLIB1 "netcdflibversion"
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#define NCPHDF5LIB2 "hdf5"
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#define NCPNCLIB2 "netcdf"
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#define NCPROPS_VERSION (2)
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/* Version 2 changes this because '|' was causing bash problems */
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#define NCPROPSSEP1 '|'
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#define NCPROPSSEP2 ','
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/* Other hidden attributes */
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#define ISNETCDF4ATT "_IsNetcdf4"
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#define SUPERBLOCKATT "_SuperblockVersion"
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/* Forward */
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struct NC_FILE_INFO;
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/**************************************************/
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/**
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For netcdf4 files, capture state information about the following:
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1. Global: netcdf library version
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2. Global: hdf5 library version | nczarr library version
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3. Per file: superblock version
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4. Per File: was it created by netcdf-4?
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5. Per file: _NCProperties attribute
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*/
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typedef struct NC4_Provenance {
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char* ncproperties; /* raw value of _NCProperties; NULL => does not exist */
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int version;
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int superblockversion;
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} NC4_Provenance;
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/* Provenance Management (moved from nc4internal.h) */
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/* Initialize the provenance global state */
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extern int NC4_provenance_init(void);
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/* Finalize the provenance global state */
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extern int NC4_provenance_finalize(void);
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/* Read and store the provenance from an existing file */
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extern int NC4_read_provenance(struct NC_FILE_INFO* file);
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/* Write the provenance into a newly created file */
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extern int NC4_write_provenance(struct NC_FILE_INFO* file);
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/* Create the provenance for a newly created file */
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extern int NC4_new_provenance(struct NC_FILE_INFO* file);
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/* Clean up the provenance info in a file */
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extern int NC4_clear_provenance(NC4_Provenance* prov);
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#endif /* _NCPROVENANCE_ */
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