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/* lutil_meter.h - progress meters */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright (c) 2009 by Emily Backes, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* ACKNOWLEDGEMENTS:
* This work was initially developed by Emily Backes for inclusion
* in OpenLDAP software.
*/
#ifndef _LUTIL_METER_H
#define _LUTIL_METER_H
#include "portable.h"
#include <limits.h>
#include <stdio.h>
#include <sys/types.h>
#include <ac/stdlib.h>
#include <ac/time.h>
typedef struct {
int (*display_open) (void **datap);
int (*display_update) (void **datap, double frac, time_t remaining_time, time_t elapsed, double byte_rate);
int (*display_close) (void **datap);
} lutil_meter_display_t;
typedef struct {
int (*estimator_open) (void **datap);
int (*estimator_update) (void **datap, double start, double frac, time_t *remaining_time);
int (*estimator_close) (void **datap);
} lutil_meter_estimator_t;
typedef struct {
const lutil_meter_display_t *display;
void * display_data;
const lutil_meter_estimator_t *estimator;
void * estimator_data;
double start_time;
double last_update;
size_t goal_value;
size_t last_position;
} lutil_meter_t;
extern const lutil_meter_display_t lutil_meter_text_display;
extern const lutil_meter_estimator_t lutil_meter_linear_estimator;
extern int lutil_meter_open (
lutil_meter_t *lutil_meter,
const lutil_meter_display_t *display,
const lutil_meter_estimator_t *estimator,
size_t goal_value);
extern int lutil_meter_update (
lutil_meter_t *lutil_meter,
size_t position,
int force);
extern int lutil_meter_close (lutil_meter_t *lutil_meter);
#endif /* _LUTIL_METER_H */
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