Berkeley DB Reference Guide: Upgrading Berkeley DB Applications

Release 3.3: DB->set_malloc, DB->set_realloc

There are two new interfaces in the Berkeley DB 3.3 release: DB_ENV->set_alloc and DB->set_alloc. These functions allow applications to specify a set of allocation functions for the Berkeley DB library to use when allocating memory to be owned by the application and when freeing memory that was originally allocated by the application.

The new interfaces affect or replace the following historic interfaces:

DB->set_malloc

The DB->set_malloc interface has been replaced in its entirety. Applications using this interface should replace the call with a call to DB->set_alloc.

DB->set_realloc

The DB->set_realloc interface has been replaced in its entirety. Applications using this interface should replace the call with a call to DB->set_alloc.

DB->stat

The historic db_malloc argument to the DB->stat function has been replaced. Applications using this interface should do as follows: if the argument is NULL, it should simply be removed. If non-NULL, it should be replaced with a call to DB->set_alloc.

lock_stat

The historic db_malloc argument to the lock_stat function has been replaced. Applications using this interface should do as follows: if the argument is NULL, it should simply be removed. If non-NULL, it should be replaced with a call to DB_ENV->set_alloc.

log_archive

The historic db_malloc argument to the log_archive function has been replaced. Applications using this interface should do as follows: if the argument is NULL, it should simply be removed. If non-NULL, it should be replaced with a call to DB_ENV->set_alloc.

log_stat

The historic db_malloc argument to the log_stat function has been replaced. Applications using this interface should do as follows: if the argument is NULL, it should simply be removed. If non-NULL, it should be replaced with a call to DB_ENV->set_alloc.

memp_stat

The historic db_malloc argument to the memp_stat function has been replaced. Applications using this interface should do as follows: if the argument is NULL, it should simply be removed. If non-NULL, it should be replaced with a call to DB_ENV->set_alloc.

txn_stat

The historic db_malloc argument to the txn_stat function has been replaced. Applications using this interface should do as follows: if the argument is NULL, it should simply be removed. If non-NULL, it should be replaced with a call to DB_ENV->set_alloc.

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