c-treeDB API API for C

ctdbGetIdxno

Retrieve the index file number from a index handle.

DECLARATION

NINT ctdbGetIdxno(CTHANDLE Handle)

DESCRIPTION

Retrieves the index file number to be used with c-tree ISAM or low-level index functions.

Handle must be an index or segment handle.

Returns the index number on success or -1 on failure. If ctdbGetIdxno() function returns -1, the error code can be retrieved by calling the ctdbGetError() function.

RETURN

Value	Symbolic Constant	Explanation
0	NO_ERROR	No error occurred.
-1		ctdbGetDIdxno() failed. You can retrieve the error code by calling ctdbGetError() function.

See Appendix A for a complete listing of valid c-tree Plus error values.

EXAMPLE

/* retrieve the first key of first index */

TEXT keyval[256];

COUNT idxno = (COUNT)ctdbGetIdxno(ctdbGetIdnex(hTable, 0));

if (FirstKey(idxno, 0), keyval)

printf("FirstKey failed\n");