SQLITE_IOERR_UNLOCK  668 ext/sqlite3/libsqlite/sqlite3.c #define SQLITE_IOERR_UNLOCK            (SQLITE_IOERR | (8<<8))
SQLITE_IOERR_UNLOCK  461 ext/sqlite3/libsqlite/sqlite3.h #define SQLITE_IOERR_UNLOCK            (SQLITE_IOERR | (8<<8))