diff options
Diffstat (limited to 'src/H5HFhdr.c')
| -rw-r--r-- | src/H5HFhdr.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/H5HFhdr.c b/src/H5HFhdr.c index 54b4ff9..c51fc82 100644 --- a/src/H5HFhdr.c +++ b/src/H5HFhdr.c @@ -516,6 +516,51 @@ done: /*------------------------------------------------------------------------- + * Function: H5HF_hdr_protect + * + * Purpose: Convenience wrapper around H5AC_protect on an indirect block + * + * Return: Pointer to indirect block on success, NULL on failure + * + * Programmer: Quincey Koziol + * koziol@hdfgroup.org + * May 5 2010 + * + *------------------------------------------------------------------------- + */ +H5HF_hdr_t * +H5HF_hdr_protect(H5F_t *f, hid_t dxpl_id, haddr_t addr, H5AC_protect_t rw) +{ + H5HF_hdr_cache_ud_t cache_udata; /* User-data for callback */ + H5HF_hdr_t *hdr; /* Fractal heap header */ + H5HF_hdr_t *ret_value; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT(H5HF_hdr_protect) + + /* Check arguments */ + HDassert(f); + HDassert(H5F_addr_defined(addr)); + + /* Set up userdata for protect call */ + cache_udata.f = f; + cache_udata.dxpl_id = dxpl_id; + + /* Lock the heap header into memory */ + if(NULL == (hdr = (H5HF_hdr_t *)H5AC_protect(f, dxpl_id, H5AC_FHEAP_HDR, addr, &cache_udata, rw))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to protect fractal heap header") + + /* Set the header's address */ + hdr->heap_addr = addr; + + /* Set the return value */ + ret_value = hdr; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5HF_hdr_protect() */ + + +/*------------------------------------------------------------------------- * Function: H5HF_hdr_incr * * Purpose: Increment component reference count on shared heap header |