diff options
| author | Quincey Koziol <koziol@hdfgroup.org> | 2009-05-27 17:00:29 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 2009-05-27 17:00:29 (GMT) |
| commit | 29d45ed0d13493d07d7d744950e1fe1b6d5bbff1 (patch) | |
| tree | ec205638688c89f80b9d1018611cdbe503131e8d /src/H5Fquery.c | |
| parent | e5d055581558413f5257edf27fbfab5650c02896 (diff) | |
| download | hdf5-29d45ed0d13493d07d7d744950e1fe1b6d5bbff1.zip hdf5-29d45ed0d13493d07d7d744950e1fe1b6d5bbff1.tar.gz hdf5-29d45ed0d13493d07d7d744950e1fe1b6d5bbff1.tar.bz2 | |
[svn-r16985] Description:
Interim checkin of work toward closing race condition window which can
cause errors when reading a file that is used for SWMR-write access.
This change introduces a chunk proxy in the metadata cache, which
participates in the metadata cache's flush dependencies while representing a
raw data chunk in a dataset's chunk cache.
Also, the extensible array's SWMR behavior is only invoked when the
file is opened for SWMR-write access, allowing more flexibility in flushing
extensible array data structure pieces when SWMR-write is not enabled.
Tested on:
FreeBSD/32 6.3 (duty) in debug mode
FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
Linux/32 2.6 (jam) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe,
in debug mode
Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
w/szip filter, in production mode
Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
in production mode
Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in debug mode
Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
Mac OS X/32 10.5.6 (amazon) in debug mode
Mac OS X/32 10.5.6 (amazon) w/C++ & FORTRAN, w/threadsafe,
in production mode
Diffstat (limited to 'src/H5Fquery.c')
| -rw-r--r-- | src/H5Fquery.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/H5Fquery.c b/src/H5Fquery.c index 275061d..d070b94 100644 --- a/src/H5Fquery.c +++ b/src/H5Fquery.c @@ -687,3 +687,32 @@ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5F_get_fileno() */ + +/*------------------------------------------------------------------------- + * Function: H5F_get_next_proxy_addr + * + * Purpose: Quick and dirty routine to retrieve the next metadata proxy + * address for a file. + * (Mainly added to stop non-file routines from poking about in the + * H5F_t data structure) + * + * Return: Success: Address to use for metadata cache proxy + * Failure: abort (should not happen) + * + * Programmer: Quincey Koziol <koziol@hdfgroup.org> + * May 19, 2009 + * + *------------------------------------------------------------------------- + */ +haddr_t +H5F_get_next_proxy_addr(const H5F_t *f) +{ + /* Use FUNC_ENTER_NOAPI_NOINIT_NOFUNC here to avoid performance issues */ + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5F_get_next_proxy_addr) + + HDassert(f); + HDassert(f->shared); + + FUNC_LEAVE_NOAPI(f->shared->next_proxy_addr--) +} /* end H5F_get_next_proxy_addr() */ + |