isfd | isam file descriptor |
mode | 0: off 1:on |
ISTRUE, or ISFALSE, in which case the error code is returned by isErrno, or found in isfd->iserrno
a flag value of 1 will cause the library to fail on update or delete if the current record in question has not been successfully locked prior to the operation.
the iserrno value returned in this instance is ENOCURR.