lock_id

#include <db.h> int lock_id(DB_ENV *env, u_int32_t *idp); Description The lock_id function copies a locker ID, which is guaranteed to be unique in the specified lock table, into the memory location referenced by idp. The lock_id function returns a non-zero error value on failure and 0 on success. Errors The lock_id function may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions. If a catastrophic error has occurred, the lock_id function may fail and return DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail in the same way. See Also DBENV->set_lk_conflicts, DBENV->set_lk_detect, DBENV->set_lk_max, lock_detect, lock_get, lock_id, lock_put, lock_stat and lock_vec.