.Dd December 19, 2018 .Dt SQLITE_LOCK_NONE 3 .Os .Sh NAME .Nm SQLITE_LOCK_NONE , .Nm SQLITE_LOCK_SHARED , .Nm SQLITE_LOCK_RESERVED , .Nm SQLITE_LOCK_PENDING , .Nm SQLITE_LOCK_EXCLUSIVE .Nd File Locking Levels .Sh SYNOPSIS .Fd #define SQLITE_LOCK_NONE .Fd #define SQLITE_LOCK_SHARED .Fd #define SQLITE_LOCK_RESERVED .Fd #define SQLITE_LOCK_PENDING .Fd #define SQLITE_LOCK_EXCLUSIVE .Sh DESCRIPTION SQLite uses one of these integer values as the second argument to calls it makes to the xLock() and xUnlock() methods of an sqlite3_io_methods object. .Sh SEE ALSO .Xr sqlite3_io_methods 3