Berkeley DB

DBset_feedback

						#include <db.h>
						int
						DB→set_feedback(DB *,
						void (*db_feedback_fcn)(DB *dbp, int opcode, int pct));
					

Description

Some operations performed by the Berkeley DB library can take non-trivial amounts of time. The DB→set_feedback function can be used by applications to monitor progress within these operations.

When an operation is likely to take a long time, Berkeley DB will call the specified callback function. This function must be declared with three arguments: the first will be a reference to the enclosing database handle; the second will be a flag value; and the third will be the percent of the operation that has been completed, specified as an integer value between 0 and 100. It is up to the callback function to display this information ...