diff options
Diffstat (limited to 'src/H5Oint.c')
| -rw-r--r-- | src/H5Oint.c | 60 |
1 files changed, 56 insertions, 4 deletions
diff --git a/src/H5Oint.c b/src/H5Oint.c index 6ab5393..0df7467 100644 --- a/src/H5Oint.c +++ b/src/H5Oint.c @@ -131,6 +131,13 @@ const H5O_msg_class_t *const H5O_msg_class_g[] = { #endif /* H5O_ENABLE_BOGUS */ }; +/* Format version bounds for object header */ +const unsigned H5O_obj_ver_bounds[] = { + H5O_VERSION_1, /* H5F_LIBVER_EARLIEST */ + H5O_VERSION_2, /* H5F_LIBVER_V18 */ + H5O_VERSION_LATEST /* H5F_LIBVER_LATEST */ +}; + /* Declare a free list to manage the H5O_t struct */ H5FL_DEFINE(H5O_t); @@ -203,6 +210,51 @@ H5O__init_package(void) /*------------------------------------------------------------------------- + * Function: H5O_set_version + * + * Purpose: Sets the correct version to encode the object header. + * Chooses the oldest version possible, unless the file's + * low bound indicates otherwise. + * + * Return: Success: Non-negative + * Failure: Negative + * + * Programmer: Quincey Koziol + * koziol@hdfgroup.org + * Jul 17 2007 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_set_version(H5F_t *f, H5O_t *oh, uint8_t oh_flags, hbool_t store_msg_crt_idx) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(FAIL) + + /* check arguments */ + HDassert(f); + HDassert(oh); + + /* Set the correct version to encode object header with */ + if(store_msg_crt_idx || (oh_flags & H5O_HDR_ATTR_CRT_ORDER_TRACKED)) + oh->version = H5O_VERSION_2; + else + oh->version = H5O_VERSION_1; + + /* Upgrade to the version indicated by the file's low bound if higher */ + oh->version = MAX(oh->version, (uint8_t)H5O_obj_ver_bounds[H5F_LOW_BOUND(f)]); + + /* File bound check */ + if(oh->version > H5O_obj_ver_bounds[H5F_HIGH_BOUND(f)]) + HGOTO_ERROR(H5E_OHDR, H5E_BADRANGE, FAIL, "object header version out of bounds") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_set_version() */ + + +/*------------------------------------------------------------------------- * Function: H5O_create * * Purpose: Creates a new object header. Allocates space for it and @@ -263,10 +315,10 @@ H5O_create(H5F_t *f, hid_t dxpl_id, size_t size_hint, size_t initial_rc, /* Initialize file-specific information for object header */ store_msg_crt_idx = H5F_STORE_MSG_CRT_IDX(f); - if(H5F_USE_LATEST_FLAGS(f, H5F_LATEST_OBJ_HEADER) || store_msg_crt_idx || (oh_flags & H5O_HDR_ATTR_CRT_ORDER_TRACKED)) - oh->version = H5O_VERSION_LATEST; - else - oh->version = H5O_VERSION_1; + + if(H5O_set_version(f, oh, oh_flags, store_msg_crt_idx) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTSET, FAIL, "can't set version of objecdt header") + oh->sizeof_size = H5F_SIZEOF_SIZE(f); oh->sizeof_addr = H5F_SIZEOF_ADDR(f); oh->swmr_write = !!(H5F_INTENT(f) & H5F_ACC_SWMR_WRITE); |