diff options
Diffstat (limited to 'libstore/stripe.c')
| -rw-r--r-- | libstore/stripe.c | 73 |
1 files changed, 51 insertions, 22 deletions
diff --git a/libstore/stripe.c b/libstore/stripe.c index 1bb4880d..5b266865 100644 --- a/libstore/stripe.c +++ b/libstore/stripe.c @@ -1,9 +1,7 @@ /* Striped store backend - Copyright (C) 1996 Free Software Foundation, Inc. - + Copyright (C) 1996, 1997 Free Software Foundation, Inc. Written by Miles Bader <miles@gnu.ai.mit.edu> - This file is part of the GNU Hurd. The GNU Hurd is free software; you can redistribute it and/or @@ -18,7 +16,7 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ #include <stdlib.h> #include <string.h> @@ -199,17 +197,17 @@ store_ileave_create (struct store *const *stripes, size_t num_stripes, common_flags &= stripes[i]->flags; } - *store = _make_store (&store_ileave_class, MACH_PORT_NULL, - common_flags | flags, block_size, - runs, num_stripes, min_end); - if (! *store) - return ENOMEM; - - (*store)->wrap_dst = interleave; + err = _store_create (&store_ileave_class, MACH_PORT_NULL, + common_flags | flags, block_size, + runs, num_stripes, min_end, store); + if (! err) + { + (*store)->wrap_dst = interleave; - err = store_set_children (*store, stripes, num_stripes); - if (err) - store_free (*store); + err = store_set_children (*store, stripes, num_stripes); + if (err) + store_free (*store); + } return err; } @@ -239,15 +237,46 @@ store_concat_create (struct store * const *stores, size_t num_stores, common_flags &= stores[i]->flags; } - *store = _make_store (&store_concat_class, MACH_PORT_NULL, - flags | common_flags, block_size, - runs, num_stores * 2, 0); - if (! *store) - return ENOMEM; + err = _store_create (&store_concat_class, MACH_PORT_NULL, + flags | common_flags, block_size, + runs, num_stores * 2, 0, store); + if (! err) + { + err = store_set_children (*store, stores, num_stores); + if (! err) + { + err = store_children_name (*store, &(*store)->name); + if (err == EINVAL) + err = 0; /* Can't find a name; deal. */ + } + if (err) + store_free (*store); + } - err = store_set_children (*store, stores, num_stores); - if (err) - store_free (*store); + return err; +} +/* Return a new store that concatenates the stores created by opening all the + individual stores described in NAME; for the syntax of NAME, see + store_open_children. */ +error_t +store_concat_open (const char *name, int flags, + const struct store_class *const *classes, + struct store **store) +{ + struct store **stores; + size_t num_stores; + error_t err = + store_open_children (name, flags, classes, &stores, &num_stores); + if (! err) + { + err = store_concat_create (stores, num_stores, flags, store); + if (err) + { + size_t k; + for (k = 0; k < (*store)->num_children; k++) + store_free ((*store)->children[k]); + } + } return err; } |