diff options
| author | Anand Avati <avati@redhat.com> | 2013-04-15 09:52:35 -0700 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2013-06-08 14:49:10 -0700 |
| commit | a7aa733d2802eee2f4f2d24eca4378997b89bfbb (patch) | |
| tree | a26f941a32477eaf2b003b94c36f8b81b7ca8299 /api/src | |
| parent | 5b20fac94cd928747854c7170e368c6c864dff24 (diff) | |
gfapi: POSIX locking support
Change-Id: I37d9e1fb4a715094876be6af3856c1b4cf398021
BUG: 953694
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5155
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'api/src')
| -rw-r--r-- | api/src/glfs-fops.c | 46 | ||||
| -rw-r--r-- | api/src/glfs.c | 1 | ||||
| -rw-r--r-- | api/src/glfs.h | 6 |
3 files changed, 53 insertions, 0 deletions
diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c index 3ce930f2745..61c524eaf78 100644 --- a/api/src/glfs-fops.c +++ b/api/src/glfs-fops.c @@ -2315,3 +2315,49 @@ out: return buf; } + + +static void +gf_flock_to_flock (struct gf_flock *gf_flock, struct flock *flock) +{ + flock->l_type = gf_flock->l_type; + flock->l_whence = gf_flock->l_whence; + flock->l_start = gf_flock->l_start; + flock->l_len = gf_flock->l_len; + flock->l_pid = gf_flock->l_pid; +} + + +static void +gf_flock_from_flock (struct gf_flock *gf_flock, struct flock *flock) +{ + gf_flock->l_type = flock->l_type; + gf_flock->l_whence = flock->l_whence; + gf_flock->l_start = flock->l_start; + gf_flock->l_len = flock->l_len; + gf_flock->l_pid = flock->l_pid; +} + + +int +glfs_posix_lock (struct glfs_fd *glfd, int cmd, struct flock *flock) +{ + int ret = -1; + xlator_t *subvol = NULL; + struct gf_flock gf_flock = {0, }; + + __glfs_entry_fd (glfd); + + subvol = glfs_fd_subvol (glfd); + if (!subvol) { + ret = -1; + errno = EIO; + goto out; + } + + gf_flock_from_flock (&gf_flock, flock); + ret = syncop_lk (subvol, glfd->fd, cmd, &gf_flock); + gf_flock_to_flock (&gf_flock, flock); +out: + return ret; +} diff --git a/api/src/glfs.c b/api/src/glfs.c index 21cded39c69..01c3494e28e 100644 --- a/api/src/glfs.c +++ b/api/src/glfs.c @@ -11,6 +11,7 @@ /* TODO: + - merge locks in glfs_posix_lock for lock self-healing - refresh fs->cwd inode on graph switch - set proper pid/lk_owner to call frames (currently buried in syncop) - fix logging.c/h to store logfp and loglevel in glusterfs_ctx_t and diff --git a/api/src/glfs.h b/api/src/glfs.h index 06849d0c731..7fecffb697a 100644 --- a/api/src/glfs.h +++ b/api/src/glfs.h @@ -453,6 +453,12 @@ int glfs_fchdir (glfs_fd_t *fd); char *glfs_realpath (glfs_t *fs, const char *path, char *resolved_path); +/* + * @cmd and @flock are as specified in man fcntl(2). + */ +int glfs_posix_lock (glfs_fd_t *fd, int cmd, struct flock *flock); + + __END_DECLS #endif /* !_GLFS_H */ |