| isfd | isam file identifier |
| stats | variable length statistics structure, defined in ischeck.h, or NULL to ignore same. |
SUCCESS, or a negative value on error, in which case the error code is found in iserrno.
this routine checks the variable length storage system for errors, and will return a value with the following bits set in accordance with it's findings:
IC_VLMISFILE 12 node misfiled in hash table IC_VLHASHLINK 13 mangled link in hash list IC_VLMISSING 14 nodes missing or unaccounted IC_VLBADDATA 15 data length mismatch
it will also optionally load the following fields in stats:
hashcount number of nodes held in hashtable hashspace total bytes free space in same fullcount number of nodes not in hashtable fullspace total (unusable) space in same filecount total number of storage nodes in use filespace total free space for the file