DbEnv::lock_id

#include <db_cxx.h> int DbEnv::lock_id(u_int32_t *idp); Description The DbEnv::lock_id method copies a locker ID, which is guaranteed to be unique in the specified lock table, into the memory location to which idp refers. The DbEnv::lock_id_free method should be called to return the locker ID to the Berkeley DB library when it is no longer needed. The DbEnv::lock_id 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. Errors The DbEnv::lock_id method may fail and throw an exception or return a non-zero error for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the DbEnv::lock_id method may fail and either return DB_RUNRECOVERY or throw an exception encapsulating DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail in the same way. Class DbEnv, DbLock See Also DbEnv::set_lk_conflicts, DbEnv::set_lk_detect, DbEnv::set_lk_max_lockers, DbEnv::set_lk_max_locks, DbEnv::set_lk_max_objects, DbEnv::lock_detect, DbEnv::lock_get, DbEnv::lock_id, DbEnv::lock_id_free, DbEnv::lock_put, DbEnv::lock_stat, and DbEnv::lock_vec.