Berkeley DB

DbLock

						#include <db_cxx.h>
						class DbLock {
						public:
						DbLock();
						DbLock(const DbLock &);
						DbLock &operator = (const DbLock &);
						∼DbLock();
						};
					

Description

The DbEnv lock methods and the DbLock class are used to provide general-purpose locking. Although designed to work with the other Db classes, they are also useful for more general locking purposes. Locks can be shared between processes.

In most cases, when multiple threads or processes are using locking, the deadlock detector, db_deadlock should be run.