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DbEnv::set_feedback |
#include <db_cxx.h>int DbEnv::set_feedback(void (*db_feedback_fcn)(DbEnv *dbenv, int opcode, int percent));
Some operations performed by the Berkeley DB library can take non-trivial amounts of time. The DbEnv::set_feedback method 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 with progress information.
It is up to the callback function to display this information in an appropriate manner.
The DbEnv::set_feedback method configures operations performed using the specified DbEnv handle
The DbEnv::set_feedback method may be called at any time during the life of the application.
The DbEnv::set_feedback method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success.
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