diff options
| author | Anand Avati <avati@redhat.com> | 2013-05-02 20:01:18 -0700 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2013-05-29 21:40:54 -0700 |
| commit | 7646169f20d2e2f23c6033347f019ee60521a524 (patch) | |
| tree | 0565b041166f36bea3df784bfdd826aadc6eae74 /api | |
| parent | deaf7574a6cb519cf678196476697db9fe69edd0 (diff) | |
gfapi: add new API glfs_dup() to copy a file descriptor
Duplicate a glfs_fd file descriptor. Inherit the internal
fd_t with a reference.
Change-Id: Ib30e9a46b608b9f78202957f4dab6ba6265a9ec0
BUG: 953694
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5109
Reviewed-by: Raghavendra Talur <rtalur@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'api')
| -rw-r--r-- | api/src/glfs-fops.c | 42 | ||||
| -rw-r--r-- | api/src/glfs.h | 1 |
2 files changed, 43 insertions, 0 deletions
diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c index 231db481b8e..66e7d69f14d 100644 --- a/api/src/glfs-fops.c +++ b/api/src/glfs-fops.c @@ -2882,3 +2882,45 @@ out: return ret; } + + +struct glfs_fd * +glfs_dup (struct glfs_fd *glfd) +{ + xlator_t *subvol = NULL; + fd_t *fd = NULL; + glfs_fd_t *dupfd = NULL; + struct glfs *fs = NULL; + + __glfs_entry_fd (glfd); + + fs = glfd->fs; + subvol = glfs_active_subvol (fs); + if (!subvol) { + errno = EIO; + goto out; + } + + fd = glfs_resolve_fd (fs, subvol, glfd); + if (!fd) { + errno = EBADFD; + goto out; + } + + dupfd = glfs_fd_new (fs); + if (!dupfd) { + errno = ENOMEM; + goto out; + } + + dupfd->fd = fd_ref (fd); +out: + if (fd) + fd_unref (fd); + if (dupfd) + glfs_fd_bind (dupfd); + + glfs_subvol_done (fs, subvol); + + return dupfd; +} diff --git a/api/src/glfs.h b/api/src/glfs.h index aeabfdf0b4f..f472ca4ea1e 100644 --- a/api/src/glfs.h +++ b/api/src/glfs.h @@ -461,6 +461,7 @@ char *glfs_realpath (glfs_t *fs, const char *path, char *resolved_path); */ int glfs_posix_lock (glfs_fd_t *fd, int cmd, struct flock *flock); +glfs_fd_t *glfs_dup (glfs_fd_t *fd); __END_DECLS |