SQLITE_IOERR_LOCK constant
int
const SQLITE_IOERR_LOCK
The SQLITE_IOERR_LOCK error code is an extended error code for SQLITE_IOERR indicating an I/O error in the advisory file locking logic. Usually an SQLITE_IOERR_LOCK error indicates a problem obtaining a PENDING lock. However it can also indicate miscellaneous locking errors on some of the specialized VFSes used on Macs.
Implementation
static const int SQLITE_IOERR_LOCK = 3850;