diff options
Diffstat (limited to 'libstore/store.h')
| -rw-r--r-- | libstore/store.h | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/libstore/store.h b/libstore/store.h index c7789373..9c5e5bfd 100644 --- a/libstore/store.h +++ b/libstore/store.h @@ -39,10 +39,13 @@ #endif +/* Type for addresses inside the store. */ +typedef off64_t store_offset_t; + /* A portion of a store. If START == -1, it's a hole. */ struct store_run { - off_t start, length; + store_offset_t start, length; }; struct store @@ -57,13 +60,13 @@ struct store size_t num_runs; /* Length of RUNS. */ /* Maximum valid offset. This is the same as SIZE, but in blocks. */ - off_t end; + store_offset_t end; /* WRAP_SRC is the sum of the run lengths in RUNS. If this is less than END, then RUNS describes a repeating pattern, of length WRAP_SRC -- each successive iteration having an additional offset of WRAP_DST. */ - off_t wrap_src; - off_t wrap_dst; /* Only meaningful if WRAP_SRC < END */ + store_offset_t wrap_src; + store_offset_t wrap_dst; /* Only meaningful if WRAP_SRC < END */ /* Handles for the underlying storage. */ char *name; /* Malloced */ @@ -73,9 +76,9 @@ struct store size_t block_size; /* The number of blocks (of size BLOCK_SIZE) in this storage. */ - off_t blocks; + store_offset_t blocks; /* The number of bytes in this storage, including holes. */ - off_t size; + store_offset_t size; /* Log_2 (BLOCK_SIZE) or 0 if not a power of 2. */ unsigned log2_block_size; @@ -121,11 +124,11 @@ struct store | ~(STORE_BACKEND_SPEC_BASE - 1)) typedef error_t (*store_write_meth_t)(struct store *store, - off_t addr, size_t index, + store_offset_t addr, size_t index, void *buf, mach_msg_type_number_t len, mach_msg_type_number_t *amount); typedef error_t (*store_read_meth_t)(struct store *store, - off_t addr, size_t index, + store_offset_t addr, size_t index, mach_msg_type_number_t amount, void **buf, mach_msg_type_number_t *len); @@ -229,7 +232,7 @@ error_t _store_create (const struct store_class *class, mach_port_t port, int flags, size_t block_size, const struct store_run *runs, size_t num_runs, - off_t end, struct store **store); + store_offset_t end, struct store **store); /* Set STORE's current runs list to (a copy of) RUNS and NUM_RUNS. */ error_t store_set_runs (struct store *store, @@ -293,13 +296,13 @@ error_t store_remap (struct store *source, /* Write LEN bytes from BUF to STORE at ADDR. Returns the amount written in AMOUNT (in bytes). ADDR is in BLOCKS (as defined by STORE->block_size). */ error_t store_write (struct store *store, - off_t addr, void *buf, size_t len, size_t *amount); + store_offset_t addr, void *buf, size_t len, size_t *amount); /* Read AMOUNT bytes from STORE at ADDR into BUF & LEN (which following the usual mach buffer-return semantics) to STORE at ADDR. ADDR is in BLOCKS (as defined by STORE->block_size). Note that LEN is in bytes. */ error_t store_read (struct store *store, - off_t addr, size_t amount, void **buf, size_t *len); + store_offset_t addr, size_t amount, void **buf, size_t *len); /* If STORE was created using store_create, remove the reference to the source from which it was created. */ @@ -322,7 +325,7 @@ error_t store_create_pager (struct store *store, vm_prot_t prot, ..., /* Creating specific types of stores. */ /* Return a new zero store SIZE bytes long in STORE. */ -error_t store_zero_create (off_t size, int flags, struct store **store); +error_t store_zero_create (store_offset_t size, int flags, struct store **store); /* Return a new store in STORE referring to the mach device DEVICE. Consumes the send right DEVICE. */ @@ -388,7 +391,8 @@ error_t store_typed_open (const char *name, int flags, consumed -- that is, will be freed when this store is (however, the *array* STRIPES is copied, and so should be freed by the caller). */ error_t store_ileave_create (struct store * const *stripes, size_t num_stripes, - off_t interleave, int flags, struct store **store); + store_offset_t interleave, int flags, + struct store **store); /* Return a new store in STORE that concatenates all the stores in STORES (NUM_STORES of them). The stores in STRIPES are consumed -- that is, will |