mirror of
https://github.com/Unidata/netcdf-c.git
synced 2025-01-12 15:45:21 +08:00
f6e25b695e
re: https://github.com/Unidata/netcdf-c/issues/2117 re: https://github.com/Unidata/netcdf-c/issues/2119 * Modify libsrc to allow byte-range reading of netcdf-3 files in private S3 buckets; this required using the aws sdk. Also add a test case. * The aws sdk can sometimes cause problems if the Awd::ShutdownAPI function is not called. So at optional atexit() support to ensure it is called. This is disabled for Windows. * Add documentation to nczarr.md on how to build and use the aws sdk under windows. Currently it builds, but testing fails. * Switch testing from stratus to the Unidata bucket on S3. * Improve support for the s3: url protocol. * Add a s3 specific utility code file: ds3util.c * Modify NC_infermodel to attempt to read the magic number of byte-ranged files in S3. ## Misc. * Move and rename the core S3 SDK wrapper code (libnczarr/zs3sdk.cpp) to libdispatch since it now used in libsrc as well as libnczarr. * Add calls to nc_finalize in the utilities in case atexit is disabled. * Add header only json parser to the distribution rather than as a built source.
190 lines
3.9 KiB
C
190 lines
3.9 KiB
C
/*********************************************************************
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* Copyright 2018, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*********************************************************************/
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#include "config.h"
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#ifdef USE_PARALLEL
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#include <mpi.h>
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#endif
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#include "ncdispatch.h"
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extern int NC3_initialize(void);
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extern int NC3_finalize(void);
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#ifdef USE_NETCDF4
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#include "nc4internal.h"
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extern int NC4_initialize(void);
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extern int NC4_finalize(void);
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#endif
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#ifdef USE_HDF5
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#include "hdf5internal.h"
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extern int NC_HDF5_initialize(void);
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extern int NC_HDF5_finalize(void);
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#endif
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#ifdef ENABLE_DAP2
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extern int NCD2_initialize(void);
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extern int NCD2_finalize(void);
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#endif
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#ifdef ENABLE_DAP4
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extern int NCD4_initialize(void);
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extern int NCD4_finalize(void);
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#endif
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#ifdef USE_PNETCDF
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extern int NCP_initialize(void);
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extern int NCP_finalize(void);
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#endif
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#ifdef USE_HDF4
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extern int NC_HDF4_initialize(void);
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extern int NC_HDF4_finalize(void);
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#endif
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#ifdef ENABLE_S3_SDK
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extern int NC_s3sdkinitialize(void);
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extern int NC_s3sdkfinalize(void);
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#endif
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#ifdef _MSC_VER
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#include <io.h>
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#include <fcntl.h>
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#endif
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int NC_initialized = 0;
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int NC_finalized = 1;
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#ifdef ENABLE_ATEXIT_FINALIZE
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/* Provide the void function to give to atexit() */
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static void
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finalize_atexit(void)
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{
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(void)nc_finalize();
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}
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#endif
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/**
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This procedure invokes all defined
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initializers, and there is an initializer
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for every known dispatch table.
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So if you modify the format of NC_Dispatch,
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then you need to fix it everywhere.
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It also initializes appropriate external libraries.
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*/
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int
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nc_initialize()
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{
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int stat = NC_NOERR;
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if(NC_initialized) return NC_NOERR;
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NC_initialized = 1;
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NC_finalized = 0;
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/* Do general initialization */
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if((stat = NCDISPATCH_initialize())) goto done;
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/* Initialize each active protocol */
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if((stat = NC3_initialize())) goto done;
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#ifdef ENABLE_DAP
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if((stat = NCD2_initialize())) goto done;
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#endif
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#ifdef ENABLE_DAP4
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if((stat = NCD4_initialize())) goto done;
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#endif
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#ifdef USE_PNETCDF
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if((stat = NCP_initialize())) goto done;
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#endif
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#ifdef USE_NETCDF4
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if((stat = NC4_initialize())) goto done;
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#endif /* USE_NETCDF4 */
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#ifdef USE_HDF5
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if((stat = NC_HDF5_initialize())) goto done;
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#endif
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#ifdef USE_HDF4
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if((stat = NC_HDF4_initialize())) goto done;
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#endif
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#ifdef ENABLE_S3_SDK
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if((stat = NC_s3sdkinitialize())) goto done;
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#endif
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#ifdef ENABLE_NCZARR
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if((stat = NCZ_initialize())) goto done;
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#endif
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#ifdef ENABLE_ATEXIT_FINALIZE
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/* Use atexit() to invoke nc_finalize */
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if(atexit(finalize_atexit))
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fprintf(stderr,"atexit failed\n");
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#endif
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done:
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return stat;
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}
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/**
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This procedure invokes all defined
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finalizers, and there should be one
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for every known dispatch table.
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So if you modify the format of NC_Dispatch,
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then you need to fix it everywhere.
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It also finalizes appropriate external libraries.
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*/
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int
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nc_finalize(void)
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{
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int stat = NC_NOERR;
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int failed = stat;
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if(NC_finalized) goto done;
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NC_initialized = 0;
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NC_finalized = 1;
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/* Finalize each active protocol */
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#ifdef ENABLE_DAP2
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if((stat = NCD2_finalize())) failed = stat;
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#endif
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#ifdef ENABLE_DAP4
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if((stat = NCD4_finalize())) failed = stat;
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#endif
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#ifdef USE_PNETCDF
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if((stat = NCP_finalize())) failed = stat;
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#endif
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#ifdef USE_HDF4
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if((stat = NC_HDF4_finalize())) failed = stat;
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#endif /* USE_HDF4 */
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#ifdef USE_NETCDF4
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if((stat = NC4_finalize())) failed = stat;
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#endif /* USE_NETCDF4 */
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#ifdef USE_HDF5
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if((stat = NC_HDF5_finalize())) failed = stat;
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#endif
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#ifdef ENABLE_NCZARR
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if((stat = NCZ_finalize())) failed = stat;
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#endif
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#ifdef ENABLE_S3_SDK
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if((stat = NC_s3sdkfinalize())) failed = stat;
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#endif
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if((stat = NC3_finalize())) failed = stat;
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/* Do general finalization */
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if((stat = NCDISPATCH_finalize())) failed = stat;
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done:
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if(failed) fprintf(stderr,"nc_finalize failed: %d\n",failed);
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return failed;
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}
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