Dennis Heimbigner 4636584d5b Revert/Improve nc_create + NC_DISKLESS behavior ... re: https://github.com/Unidata/netcdf-c/issues/1154 Inadvertently, the behavior of NC_DISKLESS with nc_create() was changed in release 4.6.1. Previously, the NC_WRITE flag needed to be explicitly used with NC_DISKLESS in order to cause the created file to be persisted to disk. Additional analyis indicated that the current NC_DISKLESS implementation was seriously flawed. This PR attempts to clean up and regularize the situation with respect to NC_DISKLESS control. One important aspect of diskless operation is that there are two different notions of write. 1. The file is read-write vs read-only when using the netcdf API. 2. The file is persisted or not to disk at nc_close(). Previously, these two were conflated. The rules now are as follows. 1. NC_DISKLESS + NC_WRITE means that the file is read/write using the netcdf API 2. NC_DISKLESS + NC_PERSIST means that the file is persisted to a disk file at nc_close. 3. NC_DISKLESS + NC_PERSIST + NC_WRITE means both 1 and 2. The NC_PERSIST flag is new and takes over the obsolete NC_MPIPOSIX flag. NC_MPIPOSIX is still defined, but is now an alias for the NC_MPIIO flag. It is also now the case that for netcdf-4, NC_DISKLESS is independent of NC_INMEMORY and in fact it is an error to specify both flags simultaneously. Finally, the MMAP code was fixed to use NC_PERSIST as well. Also marked MMAP as deprecated. Also added a test case to test various combinations of NC_DISKLESS, NC_PERSIST, and NC_WRITE. This PR affects a number of files and especially test cases that used NC_DISKLESS. Misc. Unrelated fixes 1. fixed some warnings in ncdump/dumplib.c		2018-10-10 13:32:17 -06:00
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attr.m4
CMakeLists.txt
depend
dim.c
ffio.c
lookup3.c
Makefile.am
memio.c	Revert/Improve nc_create + NC_DISKLESS behavior	2018-10-10 13:32:17 -06:00
mmapio.c	Revert/Improve nc_create + NC_DISKLESS behavior	2018-10-10 13:32:17 -06:00
nc3dispatch.c
nc3internal.c	Ignore flags NC_MPIIO and NC_MPIPOSIX.	2018-09-22 20:22:34 -05:00
ncFile.c
ncio.c	Revert/Improve nc_create + NC_DISKLESS behavior	2018-10-10 13:32:17 -06:00
ncio.h
ncstdio.c
ncstdio.h
ncx_cray.c
ncx.h
ncx.m4
posixio.c
pstdint.h
putget.m4	Promote NC_var member len from size_t to long long to fix some problems of large-variable tests on 320bit platforms.	2018-06-15 15:08:05 -05:00
t_ncio.c
t_ncio.in
t_ncxx.m4
test_nc.sav
v1hpg.c	Promote NC_var member len from size_t to long long to fix some problems of large-variable tests on 320bit platforms.	2018-06-15 15:08:05 -05:00
var.c	another typecast missed	2018-06-17 13:16:09 -05:00
winceio.c
XGetopt.c