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59e04ae071
cloud using a variant of the Zarr protocol and storage format. This enhancement is generically referred to as "NCZarr". The data model supported by NCZarr is netcdf-4 minus the user-defined types and the String type. In this sense it is similar to the CDF-5 data model. More detailed information about enabling and using NCZarr is described in the document NUG/nczarr.md and in a [Unidata Developer's blog entry](https://www.unidata.ucar.edu/blogs/developer/en/entry/overview-of-zarr-support-in). WARNING: this code has had limited testing, so do use this version for production work. Also, performance improvements are ongoing. Note especially the following platform matrix of successful tests: Platform | Build System | S3 support ------------------------------------ Linux+gcc | Automake | yes Linux+gcc | CMake | yes Visual Studio | CMake | no Additionally, and as a consequence of the addition of NCZarr, major changes have been made to the Filter API. NOTE: NCZarr does not yet support filters, but these changes are enablers for that support in the future. Note that it is possible (probable?) that there will be some accidental reversions if the changes here did not correctly mimic the existing filter testing. In any case, previously filter ids and parameters were of type unsigned int. In order to support the more general zarr filter model, this was all converted to char*. The old HDF5-specific, unsigned int operations are still supported but they are wrappers around the new, char* based nc_filterx_XXX functions. This entailed at least the following changes: 1. Added the files libdispatch/dfilterx.c and include/ncfilter.h 2. Some filterx utilities have been moved to libdispatch/daux.c 3. A new entry, "filter_actions" was added to the NCDispatch table and the version bumped. 4. An overly complex set of structs was created to support funnelling all of the filterx operations thru a single dispatch "filter_actions" entry. 5. Move common code to from libhdf5 to libsrc4 so that it is accessible to nczarr. Changes directly related to Zarr: 1. Modified CMakeList.txt and configure.ac to support both C and C++ -- this is in support of S3 support via the awd-sdk libraries. 2. Define a size64_t type to support nczarr. 3. More reworking of libdispatch/dinfermodel.c to support zarr and to regularize the structure of the fragments section of a URL. Changes not directly related to Zarr: 1. Make client-side filter registration be conditional, with default off. 2. Hack include/nc4internal.h to make some flags added by Ed be unique: e.g. NC_CREAT, NC_INDEF, etc. 3. cleanup include/nchttp.h and libdispatch/dhttp.c. 4. Misc. changes to support compiling under Visual Studio including: * Better testing under windows for dirent.h and opendir and closedir. 5. Misc. changes to the oc2 code to support various libcurl CURLOPT flags and to centralize error reporting. 6. By default, suppress the vlen tests that have unfixed memory leaks; add option to enable them. 7. Make part of the nc_test/test_byterange.sh test be contingent on remotetest.unidata.ucar.edu being accessible. Changes Left TO-DO: 1. fix provenance code, it is too HDF5 specific.
130 lines
2.4 KiB
C
130 lines
2.4 KiB
C
/*
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* Copyright 2018 University Corporation for Atmospheric
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* Research/Unidata. See COPYRIGHT file for more info.
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*
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* This header file is for the parallel I/O functions of netCDF.
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*
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*/
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/* "$Id: netcdf_par.h,v 1.1 2010/06/01 15:46:49 ed Exp $" */
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#ifndef NCCONFIGURE_H
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#define NCCONFIGURE_H 1
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STDIO_H
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#include <stdio.h>
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#endif
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/*
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This is included in bottom
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of config.h. It is where,
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typically, alternatives to
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missing functions should be
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defined and missing types defined.
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*/
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#ifdef _WIN32
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#ifndef HAVE_SSIZE_T
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#include <basetsd.h>
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typedef SSIZE_T ssize_t;
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#define HAVE_SSIZE_T 1
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#endif
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#endif
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/*Warning: Cygwin with -ansi does not define these functions
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in its headers.*/
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#ifndef _WIN32
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#if __STDC__ == 1 /*supposed to be same as -ansi flag */
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/* WARNING: in some systems, these functions may be defined as macros, so check */
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#ifndef strdup
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extern char* strdup(const char*);
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#endif
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#ifndef strlcat
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extern size_t strlcat(char*,const char*,size_t);
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#endif
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#ifndef snprintf
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extern int snprintf(char*, size_t, const char*, ...);
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#endif
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#ifndef strcasecmp
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extern int strcasecmp(const char*, const char*);
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#endif
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#ifndef strtoll
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extern long long int strtoll(const char*, char**, int);
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#endif
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#ifndef strtoull
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extern unsigned long long int strtoull(const char*, char**, int);
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#endif
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#ifndef fileno
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extern int fileno(FILE*);
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#endif
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#endif /*STDC*/
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#endif /*!_WIN32*/
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#ifdef _WIN32
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#ifndef HAVE_STRLCAT
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#define strlcat(d,s,n) strcat_s((d),(n),(s))
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#endif
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#endif
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/* handle null arguments */
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#ifndef nulldup
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#ifdef HAVE_STRDUP
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#define nulldup(s) ((s)==NULL?NULL:strdup(s))
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#else
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extern char *nulldup(const char* s);
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#endif
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#endif
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#ifndef nulllen
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#define nulllen(s) ((s)==NULL?0:strlen(s))
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#endif
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#ifndef nullfree
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#define nullfree(s) {if((s)!=NULL) {free(s);} else {}}
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#endif
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#ifndef HAVE_UCHAR
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typedef unsigned char uchar;
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#endif
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#ifndef HAVE_LONGLONG
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typedef long long longlong;
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typedef unsigned long long ulonglong;
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#endif
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#ifndef HAVE_USHORT
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typedef unsigned short ushort;
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#endif
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#ifndef HAVE_UINT
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typedef unsigned int uint;
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#endif
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#ifndef _WIN32
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#ifndef HAVE_UINTPTR_T
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#if SIZEOF_VOIDP == 8
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typedef unsigned long uintptr_t;
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#else
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typedef unsigned int uintptr_t;
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#endif
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#endif
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#endif
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#ifndef HAVE_SIZE64_T
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typedef unsigned long long size64_t;
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#endif
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/* Provide a fixed size alternative to off_t or off64_t */
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typedef long long fileoffset_t;
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#ifndef NC_UNUSED
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#define NC_UNUSED(var) (void)var
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#endif
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#endif /* NCCONFIGURE_H */
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