int
DBENV->set_feedback(DB_ENV *,
void (*db_feedback_fcn)(DB_ENV *, int opcode, int pct));
Description
Some operations performed by the Berkeley DB library can take non-trivial
amounts of time. The DBENV->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
environment, the second a flag value, and the third 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 in an appropriate manner.
The opcode argument may take on any of the following values: