glusterfs.git/api/src/glfs.c, branch v3.5.6

api: versioned symbols in libgfapi.so for compatibility

2015-02-09T12:16:53+00:00

Use versioned symbols to keep libgfapi at libgfapi.so.0.0.0

Some nits uncovered:

+ there are a couple functions declared that do not have an
  associated definition, e.g. glfs_truncate(), glfs_caller_specific_init()

+ there are five private/internal functions used by heal/src/glfsheal
  and the gfapi master xlator (glfs-master.c): glfs_loc_touchup(),
  glfs_active_subvol(), and glfs_subvol_done(), glfs_init_done(),
  glfs_resolve_at(); which are not declared in glfs.h;

+ for this initial pass at versioned symbols, we use the earliest version
  of all public symbols, i.e. those for which there are declarations in
  glfs.h or glfs-handles.h.
  Further investigation as we do backports to 3.6, 3.4, and 3.4
  will be required to determine if older implementations need to
  be preserved (forward ported) and their associated alias(es) and
  symbol version(s) defined.

FWIW, we should consider linking all of our libraries with a map, it'll
result in a cleaner ABI. Perhaps something for an intern to do or a
Google Summer of Code project.

Change-Id: I513b9aad9c5fd7d8b34ff33acac35f37b6baaab6
BUG: 1160711
Signed-off-by: Kaleb S. KEITHLEY 
Reviewed-on: http://review.gluster.org/9056
Tested-by: Gluster Build System 
Reviewed-by: Niels de Vos

gfapi: In glfs_set_volfile_server() remove the port number check.

2014-07-31T07:50:47+00:00

The documentation for glfs_set_volfile_server() api says that the
port zero is a valid value. Specifying 0 uses the default port
number GF_DEFAULT_BASE_PORT. Hence removing the check for port being
zero.

Master branch commit 6567d141c1b0112acb35e711371ae5a879fc645a:
> Change-Id: I942a7fe54a418231a438ab67756537df8f28d2de
> BUG: 1084964
> Signed-off-by: Poornima G 
> Reviewed-on: http://review.gluster.org/7409
> Reviewed-by: Raghavendra Talur 
> Reviewed-by: Krishnan Parthasarathi 
> Tested-by: Gluster Build System 
> Reviewed-by: Vijay Bellur 

Change-Id: I942a7fe54a418231a438ab67756537df8f28d2de
BUG: 1124728
Signed-off-by: Poornima G 
Reviewed-on: http://review.gluster.org/8374
Reviewed-by: Niels de Vos 
Tested-by: Gluster Build System

gfapi: glfs_set_volfile_server() now entertains multiple calls

2014-05-10T02:06:36+00:00

Backport from - http://review.gluster.org/7317

Previous API:

glfs_set_volfile_server (..., const char *host, ...) - single call

New API's:

glfs_set_volfile_server (..., const char *host1, ...)
glfs_set_volfile_server (..., const char *host2, ...)

Multiple calls to this function with different volfile servers,
port or transport-type would create a list of volfile servers
which would be polled during `volfile_fetch_attempts()`

glfs_unset_volfile_server (..., const char *host, ...) to remove
a server from the list (this is provided for future usage)

>> Change-Id: I313efbd3efbd0214e2a71465f33195788df406cc
>> BUG: 986429
>> Signed-off-by: Harshavardhana 
>> Reviewed-on: http://review.gluster.org/7317
>> Tested-by: Gluster Build System 
>> Reviewed-by: Niels de Vos 
>> Reviewed-by: Anand Avati 

Change-Id: If0020f6b8775bdbe987563247c83d59a2d3744ad
BUG: 986429
Signed-off-by: Harshavardhana 
Reviewed-on: http://review.gluster.org/7384
Tested-by: Gluster Build System 
Reviewed-by: Niels de Vos

gfapi: Closed the logfile fd and initialize to NULL in glfs_fini

2014-01-21T04:22:47+00:00

Backport of http://review.gluster.org/6552

Currently if logfile is closed and other threads call gf_log
after glfs_fini() is executed, it may lead to memory corruption.
Adding gf_log_fini() which closes the logfile and initializes
the logfile to NULL, thus any further logging happens to stderr.
Also added gf_log_globals_fini() which should be filled in the
future to release all the logging resources.

BUG: 1030228
Change-Id: I90f7fb744b05bc6bd14c61fe143c0814896991e2
Signed-off-by: Poornima G 
Reviewed-on: http://review.gluster.org/6552
Reviewed-on: http://review.gluster.org/6731
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

gfapi: Closed the logfile fd in glfs_fini

2013-11-14T18:39:55+00:00

The logfile fd is not closed even after calling glfs_fini,
hence in smb mount if connection to glusterfs volume fails
at a point after the log file was opened, the fd would remain
open until the process dies.

This patch closes the logfile fd in glfs_fini.

Change-Id: I608bfac9c6833b42750b0383ad26fd33ee378ee1
BUG: 1030228
Signed-off-by: Poornima 
Reviewed-on: http://review.gluster.org/6263
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

gfapi: introduce glfs_readdir() and glfs_readdirplus() APIs

2013-11-13T18:48:18+00:00

Change-Id: I6b233bf647585675f233898351bf593f251716cc
BUG: 839950
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/6201
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra Talur

gfapi: fix mem-types initialisation

2013-10-24T20:56:13+00:00

... and also fill the body of mem_acct_init().

Change-Id: I457d0629c20f999dd2f50e710c75b1c7575b6c19
BUG: 1021904
Signed-off-by: Krutika Dhananjay 
Reviewed-on: http://review.gluster.org/6134
Reviewed-by: Amar Tumballi 
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

gfapi: fix return value of glfs_fini

2013-10-17T19:49:28+00:00

Change-Id: I5b90c7602334226a978bbdae2f9516e8701b403f
BUG: 1004519
Signed-off-by: Krishnan Parthasarathi 
Reviewed-on: http://review.gluster.org/6092
Reviewed-by: Shyamsundar Ranganathan 
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

gfapi: object handle based API extensions

2013-10-11T19:16:46+00:00

There is an ongoing effort to integrate NFS Ganesha (
https://github.com/nfs-ganesha/nfs-ganesha/wiki ) with GlusterFS as one of
the file system back ends.

Towards this we need extensions to gfapi that can handle object based
operations. Meaning, instead of using full paths or relative paths from
cwd, it is required that we can work with APIs, like the *at POSIX
variants, to be able to create, lookup, open etc. files and directories.
Hence the objects are the files or directories themselves and we give out
handles to these objects that can be used for further operations.

This code drop is an initial implementation of the proposed APIs.

The new APIs are implemented as glfs_h_XXX variants in the file
glfs-handleops.c to mirror glfs-fops.c style. The code leverages holding
onto inode references and doling these out as opaque/cookie type objects to
the callers, to enable them to be used as handles in other operations.

An fd based approach was considered, but due to the extra footprint that
the fd structure and its counterparts would incur, this was dropped to take
the approach of holding inode references themselves.

Tested by extending glfsxmp.c to invoke and exercise the added APIs, and
further tested with a reference integration of the same as an FSAL with NFS
Ganesha.

Change-Id: I23629c99e905b54070fa2e6565147812e5f3fa5d
BUG: 1016000
Signed-off-by: R.Shyamsundar 
Reviewed-on: http://review.gluster.org/5936
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

core: block unused signals in created threads

2013-09-25T08:33:16+00:00

Block all signal except those which are set for explicit handling
in glusterfs_signals_setup(). Since thread spawning code in
libglusterfs and xlators can get called from application threads
when used through libgfapi, it is necessary to do this blocking.

Change-Id: Ia320f80521a83d2edcda50b9ad414583a0175281
BUG: 1011662
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/5995
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Vijay Bellur