mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-12-09 08:11:38 +08:00
3c7ffcc6d1
Fix https://github.com/Unidata/netcdf-c/issues/962 1. remove the --disable-diskless option since it is no longer needed. Similarly for CMakeLists.txt. 2. Fixed nc4files.c where BAIL and return were mixed leading to situation where cleanup code was not being invoked. This probably occurs elsewhere, but I did not find any specifically.
139 lines
4.2 KiB
C
139 lines
4.2 KiB
C
/*
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* Copyright 1996, University Corporation for Atmospheric Research
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*/
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include "netcdf.h"
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#include "ncio.h"
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#include "fbits.h"
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/* With the advent of diskless io, we need to provide
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for multiple ncio packages at the same time,
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so we have multiple versions of ncio_create.
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*/
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/* Define known ncio packages */
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extern int posixio_create(const char*,int,size_t,off_t,size_t,size_t*,void*,ncio**,void** const);
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extern int posixio_open(const char*,int,off_t,size_t,size_t*,void*,ncio**,void** const);
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extern int stdio_create(const char*,int,size_t,off_t,size_t,size_t*,void*,ncio**,void** const);
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extern int stdio_open(const char*,int,off_t,size_t,size_t*,void*,ncio**,void** const);
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#ifdef USE_FFIO
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extern int ffio_create(const char*,int,size_t,off_t,size_t,size_t*,void*,ncio**,void** const);
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extern int ffio_open(const char*,int,off_t,size_t,size_t*,void*,ncio**,void** const);
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#endif
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# ifdef USE_MMAP
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extern int mmapio_create(const char*,int,size_t,off_t,size_t,size_t*,void*,ncio**,void** const);
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extern int mmapio_open(const char*,int,off_t,size_t,size_t*,void*,ncio**,void** const);
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# endif
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extern int memio_create(const char*,int,size_t,off_t,size_t,size_t*,void*,ncio**,void** const);
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extern int memio_open(const char*,int,off_t,size_t,size_t*,void*,ncio**,void** const);
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int
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ncio_create(const char *path, int ioflags, size_t initialsz,
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off_t igeto, size_t igetsz, size_t *sizehintp,
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void* parameters,
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ncio** iopp, void** const mempp)
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{
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if(fIsSet(ioflags,NC_INMEMORY)) {
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# ifdef USE_MMAP
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if(fIsSet(ioflags,NC_MMAP) && fIsSet(ioflags, NC_DISKLESS))
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return mmapio_create(path,ioflags,initialsz,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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else
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# endif /*USE_MMAP*/
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return memio_create(path,ioflags,initialsz,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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}
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#ifdef USE_STDIO
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return stdio_create(path,ioflags,initialsz,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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#elif defined(USE_FFIO)
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return ffio_create(path,ioflags,initialsz,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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#else
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return posixio_create(path,ioflags,initialsz,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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#endif
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}
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int
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ncio_open(const char *path, int ioflags,
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off_t igeto, size_t igetsz, size_t *sizehintp,
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void* parameters,
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ncio** iopp, void** const mempp)
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{
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/* Diskless open has the following constraints:
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1. file must be classic version 1 or 2 or 5
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*/
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if(fIsSet(ioflags,NC_INMEMORY)) {
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# ifdef USE_MMAP
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if(fIsSet(ioflags,NC_MMAP) && fIsSet(ioflags, NC_DISKLESS))
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return mmapio_open(path,ioflags,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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else
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# endif /*USE_MMAP*/
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return memio_open(path,ioflags,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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}
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#ifdef USE_STDIO
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return stdio_open(path,ioflags,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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#elif defined(USE_FFIO)
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return ffio_open(path,ioflags,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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#else
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return posixio_open(path,ioflags,igeto,igetsz,sizehintp,parameters,iopp,mempp);
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#endif
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}
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/**************************************************/
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/* wrapper functions for the ncio dispatch table */
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int
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ncio_rel(ncio* const nciop, off_t offset, int rflags)
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{
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return nciop->rel(nciop,offset,rflags);
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}
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int
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ncio_get(ncio* const nciop, off_t offset, size_t extent,
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int rflags, void **const vpp)
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{
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return nciop->get(nciop,offset,extent,rflags,vpp);
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}
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int
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ncio_move(ncio* const nciop, off_t to, off_t from, size_t nbytes, int rflags)
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{
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return nciop->move(nciop,to,from,nbytes,rflags);
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}
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int
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ncio_sync(ncio* const nciop)
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{
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return nciop->sync(nciop);
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}
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int
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ncio_filesize(ncio* const nciop, off_t *filesizep)
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{
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return nciop->filesize(nciop,filesizep);
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}
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int
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ncio_pad_length(ncio* const nciop, off_t length)
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{
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return nciop->pad_length(nciop,length);
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}
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int
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ncio_close(ncio* const nciop, int doUnlink)
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{
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/* close and release all resources associated
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with nciop, including nciop
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*/
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int status = nciop->close(nciop,doUnlink);
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return status;
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}
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