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; +}  | 
