diff options
Diffstat (limited to 'api/src/glfs-fops.c')
-rw-r--r-- | api/src/glfs-fops.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c index 4aad28005f2..08f0884c7ee 100644 --- a/api/src/glfs-fops.c +++ b/api/src/glfs-fops.c @@ -3625,3 +3625,158 @@ out: } GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_process_upcall_event, 3.7.0); + +ssize_t +glfs_anonymous_pwritev (struct glfs *fs, struct glfs_object *object, + const struct iovec *iovec, int iovcnt, + off_t offset, int flags) +{ + xlator_t *subvol = NULL; + struct iobref *iobref = NULL; + struct iobuf *iobuf = NULL; + struct iovec iov = {0, }; + inode_t *inode = NULL; + fd_t *fd = NULL; + int ret = -1; + size_t size = -1; + + __glfs_entry_fs (fs); + + subvol = glfs_active_subvol (fs); + if (!subvol) { + ret = -1; + errno = EIO; + goto out; + } + + /* get/refresh the in arg objects inode in correlation to the xlator */ + inode = glfs_resolve_inode (fs, subvol, object); + if (!inode) { + ret = -1; + errno = ESTALE; + goto out; + } + + fd = fd_anonymous (inode); + if (!fd) { + ret = -1; + gf_msg ("gfapi", GF_LOG_ERROR, ENOMEM, API_MSG_FDCREATE_FAILED, + "Allocating anonymous fd failed"); + errno = ENOMEM; + goto out; + } + + size = iov_length (iovec, iovcnt); + + iobuf = iobuf_get2 (subvol->ctx->iobuf_pool, size); + if (!iobuf) { + ret = -1; + errno = ENOMEM; + goto out; + } + + iobref = iobref_new (); + if (!iobref) { + iobuf_unref (iobuf); + errno = ENOMEM; + ret = -1; + goto out; + } + + ret = iobref_add (iobref, iobuf); + if (ret) { + iobuf_unref (iobuf); + iobref_unref (iobref); + errno = ENOMEM; + ret = -1; + goto out; + } + + iov_unload (iobuf_ptr (iobuf), iovec, iovcnt); + + iov.iov_base = iobuf_ptr (iobuf); + iov.iov_len = size; + + ret = syncop_writev (subvol, fd, &iov, 1, offset, iobref, flags, + NULL, NULL); + DECODE_SYNCOP_ERR (ret); + + iobuf_unref (iobuf); + iobref_unref (iobref); + + if (ret <= 0) + goto out; + +out: + + if (fd) + fd_unref(fd); + + glfs_subvol_done (fs, subvol); + + return ret; +} + +ssize_t +glfs_anonymous_preadv (struct glfs *fs, struct glfs_object *object, + const struct iovec *iovec, int iovcnt, + off_t offset, int flags) +{ + xlator_t *subvol = NULL; + struct iovec *iov = NULL; + struct iobref *iobref = NULL; + inode_t *inode = NULL; + fd_t *fd = NULL; + int cnt = 0; + ssize_t ret = -1; + ssize_t size = -1; + + __glfs_entry_fs (fs); + + subvol = glfs_active_subvol (fs); + if (!subvol) { + ret = -1; + errno = EIO; + goto out; + } + + /* get/refresh the in arg objects inode in correlation to the xlator */ + inode = glfs_resolve_inode (fs, subvol, object); + if (!inode) { + ret = -1; + errno = ESTALE; + goto out; + } + + fd = fd_anonymous (inode); + if (!fd) { + ret = -1; + gf_msg ("gfapi", GF_LOG_ERROR, ENOMEM, API_MSG_FDCREATE_FAILED, + "Allocating anonymous fd failed"); + errno = ENOMEM; + goto out; + } + + size = iov_length (iovec, iovcnt); + + ret = syncop_readv (subvol, fd, size, offset, flags, &iov, &cnt, + &iobref, NULL, NULL); + DECODE_SYNCOP_ERR (ret); + if (ret <= 0) + goto out; + + size = iov_copy (iovec, iovcnt, iov, cnt); + + ret = size; +out: + if (iov) + GF_FREE (iov); + if (iobref) + iobref_unref (iobref); + if (fd) + fd_unref(fd); + + glfs_subvol_done (fs, subvol); + + return ret; +} |