doc/

2002-12-03  Marcus Brinkmann  <marcus@gnu.org>

	* hurd.texi (Store I/O): Add store_set_size.

libstore/
2002-10-01  Ludovic Courtès <ludovic.courtes@utbm.fr>

	* store.h: New type store_set_size_meth_t: New type.  New
	prototype store_set_size.
	(struct store_class): Added a set_size () method.
	* rdwr.c (store_set_size): New function.
	* file.c (file_store_set_size): New function.
	(store_file_class): Add file_store_set_size.
	* concat.c (concat_set_size): New function.
	(store_concat_class): concat_set_size.
	* copy.c (copy_set_size): New function.
	(store_copy_class): copy_set_size.
	* device.c (device_set_size): New function.
	(store_device_class): device_set_size.
	* memobj.c (memobj_set_size): New function.
	(store_memobj_class): memobj_set_size.
	* mvol.c (mvol_set_size): New function.
	(store_mvol_class): mvol_set_size.
	* nbd.c (nbd_set_size): New function.
	(store_nbd_class): nbd_set_size.
	* remap.c (remap_set_size): New function.
	(store_remap_class): remap_set_size.
	* stripe.c (stripe_set_size): New function.
	(store_stripe_class): stripe_set_size.
	* unknown.c (unknown_set_size): New function.
	(store_unknown_class): unknown_set_size.
	* zero.c (zero_set_size): New function.
	(store_zero_class): zero_set_size.

1 files changed, 9 insertions, 2 deletions

diff --git a/libstore/store.h b/libstore/store.h
index ee0a2d21..9d9ee712 100644
--- a/libstore/store.h
+++ b/libstore/store.h
@@ -132,6 +132,8 @@ typedef error_t (*store_read_meth_t)(struct store *store,
 				     store_offset_t addr, size_t index,
 				     mach_msg_type_number_t amount,
 				     void **buf, mach_msg_type_number_t *len);
+typedef error_t (*store_set_size_meth_t)(struct store *store,
+					 size_t newsize);
 
 struct store_enc;		/* fwd decl */
 
@@ -144,11 +146,13 @@ struct store_class
   const char *name;
 
   /* Read up to AMOUNT bytes at the underlying address ADDR from the storage
-     into BUF and LEN.  INDEX varies from 0 to the number of runs in STORE. */
+     into BUF and LEN.  INDEX varies from 0 to the number of runs in STORE.  */
   store_read_meth_t read;
   /* Write up to LEN bytes from BUF to the storage at the underlying address
-     ADDR.  INDEX varies from 0 to the number of runs in STORE. */
+     ADDR.  INDEX varies from 0 to the number of runs in STORE.  */
   store_write_meth_t write;
+  /* Set store's size to NEWSIZE (in bytes).  */
+  store_set_size_meth_t set_size;
 
   /* To the lengths of each for the four arrays in ENC, add how much STORE
      would need to be encoded.  */
@@ -305,6 +309,9 @@ error_t store_write (struct store *store,
 error_t store_read (struct store *store,
 		    store_offset_t addr, size_t amount, void **buf, size_t *len);
 
+/* Set STORE's size to NEWSIZE (in bytes).  */
+error_t store_set_size (struct store *store, size_t newsize);
+
 /* If STORE was created using store_create, remove the reference to the
    source from which it was created.  */
 void store_close_source (struct store *store);