#include <db_cxx.h>

int
DbEnv::set_lk_detect(u_int32_t detect); 

Set if the deadlock detector is to be run whenever a lock conflict occurs, and specify what lock request(s) should be rejected. As transactions acquire locks on behalf of a single locker ID, rejecting a lock request associated with a transaction normally requires the transaction be aborted.

The database environment's deadlock detector configuration 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_detect", one or more whitespace characters, and the method detect parameter as a string; for example, "set_lk_detect DB_LOCK_OLDEST". Because the DB_CONFIG file is read when the database environment is opened, it will silently overrule configuration done before that time.

The DbEnv::set_lk_detect() method configures a database environment, not only operations performed using the specified DbEnv handle.

The DbEnv::set_lk_detect() method may be called at any time during the life of the application.

The DbEnv::set_lk_detect() method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success.