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DB_ENV->set_lk_max_objects |
#include <db.h>int DB_ENV->set_lk_max_objects(DB_ENV *dbenv, u_int32_t max);
int DB_ENV->get_lk_max_objects(DB_ENV *dbenv, u_int32_t *lk_maxp);
Set the maximum number of locked objects supported by the Berkeley DB environment. This value is used by DB_ENV->open to estimate how much space to allocate for various lock-table data structures. The default value is 1000 objects. For specific information on configuring the size of the lock subsystem, see Configuring locking: sizing the system.
The database environment's maximum number of objects may also be configured using the environment's DB_CONFIG file. The syntax of the entry in that file is a single line with the string "set_lk_max_objects", one or more whitespace characters, and the number of objects. Because the DB_CONFIG file is read when the database environment is opened, it will silently overrule configuration done before that time.
The DB_ENV->set_lk_max_objects method configures a database environment, not only operations performed using the specified DB_ENV handle.
The DB_ENV->set_lk_max_objects method may not be called after the DB_ENV->open method is called. If the database environment already exists when DB_ENV->open is called, the information specified to DB_ENV->set_lk_max_objects will be ignored.
The DB_ENV->set_lk_max_objects method returns a non-zero error value on failure and 0 on success.
The DB_ENV->set_lk_max_objects method may fail and return one of the following non-zero errors:
The DB_ENV->get_lk_max_objects method returns the maximum number of locked objects.
The DB_ENV->get_lk_max_objects method may be called at any time during the life of the application.
The DB_ENV->get_lk_max_objects method returns a non-zero error value on failure and 0 on success.
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