The C API for the Berkeley DB Locking subsystem was reworked in the 4.0 release as follows:
| Historic functional interface | Berkeley DB 4.X method |
|---|---|
| lock_detect | DB_ENV->lock_detect() |
| lock_get | DB_ENV->lock_get() |
| lock_id | DB_ENV->lock_id() |
| lock_put | DB_ENV->lock_put() |
| lock_stat | DB_ENV->lock_stat() |
| lock_vec | DB_ENV->lock_vec() |
Applications calling any of these functions should update their calls to use the enclosing DB_ENV handle's method (easily done as the first argument to the existing call is the correct handle to use).
In addition, the DB_ENV->lock_stat() call has been changed in the 4.0 release to take a flags argument. To leave their historic behavior unchanged, applications should add a final argument of 0 to any calls made to DB_ENV->lock_stat().
The C++ and Java APIs for the DbLock::put (DbLock.put) method was reworked in the 4.0 release to make the lock put interface a method of the DB_ENV handle rather than the DbLock handle. Applications calling the DbLock::put or DbLock.put method should update their calls to use the enclosing DB_ENV handle's method (easily done as the first argument to the existing call is the correct handle to use).