2001-08-25 Neal H Walfield <neal@cs.uml.edu>

        * part.c: New file.
        * std.c (store_std_classes): Add store_part_class.
        * store.h (store_part_create): New prototype.
        (store_part_open): Likewise.

2 files changed, 21 insertions, 4 deletions

diff --git a/libstore/std.c b/libstore/std.c
index e42e2094..d2230c9d 100644
--- a/libstore/std.c
+++ b/libstore/std.c
@@ -23,10 +23,11 @@
 const struct store_class *const
 store_std_classes[] = 
 {
-  &store_device_class, &store_file_class, &store_zero_class, &store_task_class,
-  &store_ileave_class, &store_concat_class, &store_remap_class,
-  &store_query_class, &store_copy_class, &store_gunzip_class,
-  &store_bunzip2_class, &store_typed_open_class,
+  &store_device_class, &store_part_class, &store_file_class,
+  &store_zero_class, &store_task_class, &store_ileave_class,
+  &store_concat_class, &store_remap_class, &store_query_class,
+  &store_copy_class, &store_gunzip_class, &store_bunzip2_class,
+  &store_typed_open_class,
   0
 };
 
diff --git a/libstore/store.h b/libstore/store.h
index 141b946f..8ca98b77 100644
--- a/libstore/store.h
+++ b/libstore/store.h
@@ -341,6 +341,21 @@ error_t _store_device_create (device_t device, int flags, size_t block_size,
 /* Open the device NAME, and return the corresponding store in STORE.  */
 error_t store_device_open (const char *name, int flags, struct store **store);
 
+/* Return a new store in STORE which contains a remap store of partition
+   PART from the contents of SOURCE; SOURCE is consumed.  */
+error_t store_part_create (struct store *source, int index, int flags,
+                          struct store **store);
+
+/* Open the part NAME.  NAME consists of a partition number, a ':', a another
+   store class name, a ':' and a name for to by passed to the store class.
+   E.g. "2:device:hd0" would open the second partition on a DEVICE store
+   named "hd0".  FLAGS indicate how to open the store.  CLASSES is used to
+   select classes specified by the type NAME; if it is 0, STORE_STD_CLASSES
+   is used.  The new store is returned in *STORE.  */
+error_t store_part_open (const char *name, int flags,
+                        const struct store_class *const *classes,
+                        struct store **store);
+
 /* Return a new store in STORE referring to the file FILE.  Unlike
    store_create, this will always use file i/o, even it would be possible to
    be more direct.  This may work in more cases, for instance if the file has
@@ -478,6 +493,7 @@ error_t store_mvol_create (struct store *phys,
 extern const struct store_class *const store_std_classes[];
 
 extern const struct store_class store_device_class;
+extern const struct store_class store_part_class;
 extern const struct store_class store_file_class;
 extern const struct store_class store_task_class;
 extern const struct store_class store_zero_class;