netcdf-c/libnczarr/zarr.h
Dennis Heimbigner eb3d9eb0c9 Provide a Number of fixes/improvements to NCZarr
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.
2020-11-19 17:01:04 -07:00

72 lines
3.3 KiB
C

/*********************************************************************
* Copyright 2018, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*********************************************************************/
/**
* Provide the zarr specific code to implement the netcdf-4 code.
*
* @author Dennis Heimbigner
*/
#ifndef ZARR_H
#define ZARR_H
/* zarr.c */
extern int ncz_create_dataset(NC_FILE_INFO_T*, NC_GRP_INFO_T*, const char** controls);
extern int ncz_open_dataset(NC_FILE_INFO_T*, const char** controls);
extern int ncz_del_attr(NC_FILE_INFO_T* file, NC_OBJ* container, const char* name);
extern int NCZ_isnetcdf4(struct NC_FILE_INFO*);
extern int NCZ_get_libversion(unsigned long* majorp, unsigned long* minorp,unsigned long* releasep);
extern int NCZ_get_superblock(NC_FILE_INFO_T* file, int* superblockp);
extern int ncz_unload_jatts(NCZ_FILE_INFO_T*, NC_OBJ* container, NCjson* jattrs, NCjson* jtypes);
/* zclose.c */
extern int ncz_close_file(NC_FILE_INFO_T* file, int abort);
/* zcvt.c */
extern int NCZ_convert1(NCjson* jsrc, nc_type, char* memory0);
extern int NCZ_stringconvert1(nc_type typid, char* src, char** strp);
extern int NCZ_stringconvert(nc_type typid, size_t len, void* data0, NCjson** jdatap);
/* zsync.c */
extern int ncz_sync_file(NC_FILE_INFO_T* file);
extern int ncz_sync_grp(NC_FILE_INFO_T* file, NC_GRP_INFO_T* grp);
extern int ncz_sync_atts(NC_FILE_INFO_T*, NC_OBJ* container, NCindex* attlist);
extern int ncz_read_grp(NC_FILE_INFO_T* file, NC_GRP_INFO_T* grp);
extern int ncz_read_atts(NC_FILE_INFO_T* file, NC_OBJ* container);
extern int ncz_read_vars(NC_FILE_INFO_T* file, NC_GRP_INFO_T* grp);
extern int ncz_read_file(NC_FILE_INFO_T* file);
extern int ncz_write_var(NC_VAR_INFO_T* var);
extern int ncz_create_superblock(NCZ_FILE_INFO_T* zinfo);
/* zutil.c */
extern int NCZ_grpkey(const NC_GRP_INFO_T* grp, char** pathp);
extern int NCZ_varkey(const NC_VAR_INFO_T* var, char** pathp);
extern int NCZ_dimkey(const NC_DIM_INFO_T* dim, char** pathp);
extern int ncz_splitkey(const char* path, NClist* segments);
extern int NCZ_readdict(NCZMAP* zmap, const char* key, NCjson** jsonp);
extern int NCZ_readarray(NCZMAP* zmap, const char* key, NCjson** jsonp);
extern int ncz_zarr_type_name(nc_type nctype, int little, const char** znamep);
extern int ncz_dtype2typeinfo(const char* dtype, nc_type* nctypep, int* endianness);
extern int ncz_fill_value_sort(nc_type nctype, int*);
extern int NCZ_createobject(NCZMAP* zmap, const char* key, size64_t size);
extern int NCZ_uploadjson(NCZMAP* zmap, const char* key, NCjson* json);
extern int NCZ_downloadjson(NCZMAP* zmap, const char* key, NCjson** jsonp);
extern int NCZ_isLittleEndian(void);
extern int NCZ_subobjects(NCZMAP* map, const char* prefix, const char* tag, NClist* objlist);
extern int NCZ_grpname_full(int gid, char** pathp);
extern int ncz_get_var_meta(NC_FILE_INFO_T* file, NC_VAR_INFO_T* var);
extern int NCZ_comma_parse(const char* s, NClist* list);
extern int NCZ_swapatomicdata(size_t datalen, void* data, int typesize);
extern char** NCZ_clonestringvec(size_t len, const char** vec);
extern void NCZ_freestringvec(size_t len, char** vec);
extern int NCZ_create_fill_chunk(size64_t chunksize, size_t typesize, void* fill, void** fillchunkp);
/* zwalk.c */
extern int NCZ_read_chunk(int ncid, int varid, size64_t* zindices, void* chunkdata);
#endif /*ZARR_H*/