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-rw-r--r--libstore/store.h26
1 files changed, 15 insertions, 11 deletions
diff --git a/libstore/store.h b/libstore/store.h
index 16b622cf..45bb97fb 100644
--- a/libstore/store.h
+++ b/libstore/store.h
@@ -41,7 +41,7 @@ struct store
/* Address ranges in the underlying storage which make up our contiguous
address space. In units of BLOCK_SIZE, below. */
off_t *runs; /* Malloced */
- size_t runs_len; /* Length of RUNS. */
+ size_t num_runs; /* Length of RUNS. */
/* Maximum valid offset. This is the same as SIZE, but in blocks. */
off_t end;
@@ -77,6 +77,10 @@ struct store
struct store_meths *meths;
+ /* A list of sub-stores. The interpretation of this is type-specific. */
+ struct store **children;
+ size_t num_children;
+
void *hook; /* Type specific noise. */
};
@@ -127,7 +131,7 @@ error_t store_device_create (device_t device, struct store **store);
/* Like store_device_create, but doesn't query the device for information. */
error_t _store_device_create (device_t device, size_t block_size,
- const off_t *runs, size_t runs_len,
+ const off_t *runs, size_t num_runs,
struct store **store);
/* Return a new store in STORE referring to the file FILE. Unlike
@@ -138,7 +142,7 @@ error_t store_file_create (file_t file, struct store **store);
/* Like store_file_create, but doesn't query the file for information. */
error_t _store_file_create (file_t file, size_t block_size,
- const off_t *runs, size_t runs_len,
+ const off_t *runs, size_t num_runs,
struct store **store);
/* Return a new store in STORE that interleaves all the stores in STRIPES
@@ -163,10 +167,10 @@ void store_free (struct store *store);
struct store *
_make_store (enum file_storage_class class, struct store_meths *meths,
mach_port_t port, size_t block_size,
- const off_t *runs, size_t runs_len, off_t end);
+ const off_t *runs, size_t num_runs, off_t end);
-/* Set STORE's current runs list to (a copy of) RUNS and RUNS_LEN. */
-error_t store_set_runs (struct store *store, const off_t *runs, size_t runs_len);
+/* Set STORE's current runs list to (a copy of) RUNS and NUM_RUNS. */
+error_t store_set_runs (struct store *store, const off_t *runs, size_t num_runs);
/* Sets the name associated with STORE to a copy of NAME. */
error_t store_set_name (struct store *store, const char *name);
@@ -227,7 +231,7 @@ struct store_enc
char *data;
/* The sizes of the vectors. */
- mach_msg_type_number_t ports_len, ints_len, offsets_len, data_len;
+ mach_msg_type_number_t num_ports, num_ints, num_offsets, data_len;
/* Offsets into the above vectors, for an encoding/decoding in progress. */
size_t cur_port, cur_int, cur_offset, cur_data;
@@ -245,9 +249,9 @@ struct store_enc
if they are big enough (otherwise new ones will be automatically
allocated). */
void store_enc_init (struct store_enc *enc,
- mach_port_t *ports, mach_msg_type_number_t ports_len,
- int *ints, mach_msg_type_number_t ints_len,
- off_t *offsets, mach_msg_type_number_t offsets_len,
+ mach_port_t *ports, mach_msg_type_number_t num_ports,
+ int *ints, mach_msg_type_number_t num_ints,
+ off_t *offsets, mach_msg_type_number_t num_offsets,
char *data, mach_msg_type_number_t data_len);
/* Deallocate storage used by the fields in ENC (but nothing is done with ENC
@@ -277,7 +281,7 @@ error_t store_default_leaf_decode (struct store_enc *enc,
error_t (*create)(mach_port_t port,
size_t block_size,
const off_t *runs,
- size_t runs_len,
+ size_t num_runs,
struct store **store),
struct store **store);