glusterfs.git/api/src/glfs-internal.h, branch v3.5.0beta2

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: 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

gfapi: apply an upper bound on nested symlink resolution

2013-09-05T12:26:30+00:00

In case of nested symlink resolution, implement an upper
bound on the number of such nested levels the resolver will
descend. This limit is arbitrary, and set to 2048 nested
levels.

Change-Id: I264e5bd60d317eda97f4e6f49bd5d8694f8664a9
BUG: 1004100
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/5768
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra Talur 
Reviewed-by: Vijay Bellur

gfapi: handle graph switch (cwd, fds, locks)

2013-05-28T07:08:57+00:00

- Migrate open fds to new graph
- Migrate locks held in open fd to new fd
- Refresh CWD, so resolution of relative paths happens on refreshed
  inode (on new graph).

Change-Id: I4b18083b9b290107ebda1f917fc85b635ab72fb4
BUG: 953694
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/5059
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra G

gfapi: provide stable st_dev in stat structure

2013-05-25T18:39:20+00:00

Samba depends on st_dev being unique and stable for different
filesystems (it uses st_dev+st_ino as key to store metadata of
a file).

Change-Id: Ia022fabadfb5ef3fc9724c1b1ca86f1a20f98af9
BUG: 953694
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/5045
Reviewed-by: Vijay Bellur 
Tested-by: Gluster Build System

gfapi: optimistic resolution with ESTALE detection

2013-05-25T18:35:06+00:00

Enhance the path resolver to be optimistic. Instead of performing
a wasteful ->lookup() fop for every component in every API call,
build in speculation logic to consider the previous resolution
result temporarily, and if it results in ESTALE either later in
the path resolution or in the FOP, then retry resolution with
->lookup() at every level and retry the FOP.

This is the same optimistic resolution/retry logic Linux kernel
resolver is proposing to use.

Change-Id: Iecbc25248754caf0915cd7205910563ff88ce5e7
BUG: 953694
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/4928
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

gfapi: support for chdir() and family

2013-04-19T11:41:35+00:00

Add support for chdir, fchdir, getcwd, realpath equivalents in
GFAPI. These are required for the Samba VFS plugin.

Change-Id: I91d2db9146994403c98961c489c7640c51d5add2
BUG: 953694
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/4853
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

gfapi: added more API calls

2012-10-08T10:36:33+00:00

- stat
- lstat
- access
- readlink
- mknod
- mkdir
- rmdir
- symlink
- rename
- link
- opendir
- closedir
- seekdir
- telldir
- readdir_r
- statvfs
- chmod
- fchmod
- chown
- lchown
- fchown
- utimens
- lutimens
- futimens
- getxattr
- lgetxattr
- fgetxattr
- setxattr
- lsetxattr
- fsetxattr
- listxattr
- llistxattr
- flistxattr
- removexattr
- lremovexattr
- fremovexattr

Change-Id: Ic2467293ddfbcefaa9b41c82cec61a5602636833
BUG: 839950
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/4022
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

gfapi: add symlink (auto resolution) support in resolver

2012-09-18T02:25:01+00:00

- new internal API glfs_lresolve() for usage with APIs
  like glfs_lXXXX() (e.g. glfs_lstat())

Change-Id: I61c60af6bda3072f189684ad8ac9815d59f455fc
BUG: 839950
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/3866
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

gfapi: set errno in glfs_init()

2012-08-02T20:22:28+00:00

save errno from glfs_init_done and set it in glfs_init_wait()

Change-Id: I1a2f43a7e7b0f07f279c175df987ff94d642b629
BUG: 839950
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.com/3771
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi