a BDB::Lockid object is created by the method lock, lock_id

The lock_get function acquires a lock from the lock table, it return an object BDB::Lock

string specifies the object to be locked or released.

mode is an index into the environment’s lock conflict array

flags value must be set to 0 or the value BDBD::LOCK_NOWAIT in this case if a lock cannot be granted because the requested lock conflicts with an existing lock, raise an error BDB::LockGranted

same than get

The lock_vec function atomically obtains and releases one or more locks from the lock table. The lock_vec function is intended to support acquisition or trading of multiple locks under one lock table semaphore, as is needed for lock coupling or in multigranularity locking for lock escalation.

• array ARRAY of HASH with the following keys
  • "op" the operation to be performed, which must be set to one of the following values BDB::LOCK_GET, BDB::LOCK_PUT, BDB::LOCK_PUT_ALL or BDB::LOCK_PUT_OBJ
  • "obj" the object (String) to be locked or released
  • "mode" is an index into the environment’s lock conflict array
  • "lock" an object BDB::Lock
• flags value must be set to 0 or the value BDBD::LOCK_NOWAIT in this case if a lock cannot be granted because the requested lock conflicts with an existing lock, raise an error BDB::LockGrantedreturn immediately

same than vec