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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include "mongo/util/thread_safe_string.h"
#include <string>
namespace mongo {
class ProgressMeter {
ProgressMeter(const ProgressMeter&) = delete;
ProgressMeter& operator=(const ProgressMeter&) = delete;
public:
ProgressMeter(unsigned long long total,
int secondsBetween = 3,
int checkInterval = 100,
std::string units = "",
std::string name = "Progress")
: _showTotal(true), _units(units) {
_name = name.c_str();
reset(total, secondsBetween, checkInterval);
}
ProgressMeter() {
_name = "Progress";
}
// typically you do ProgressMeterHolder
void reset(unsigned long long total, int secondsBetween = 3, int checkInterval = 100);
void finished() {
_active = false;
}
bool isActive() const {
return _active;
}
/**
* @param n how far along we are relative to the total # we set in CurOp::setMessage
* @return if row was printed
*/
bool hit(int n = 1);
void setUnits(const std::string& units) {
_units = units;
}
std::string getUnit() const {
return _units;
}
void setName(StringData name) {
_name = name;
}
std::string getName() const {
return _name.toString();
}
void setTotalWhileRunning(unsigned long long total) {
_total = total;
}
unsigned long long done() const {
return _done;
}
unsigned long long hits() const {
return _hits;
}
unsigned long long total() const {
return _total;
}
void showTotal(bool doShow) {
_showTotal = doShow;
}
std::string toString() const;
bool operator==(const ProgressMeter& other) const {
return this == &other;
}
private:
bool _active{false};
unsigned long long _total;
bool _showTotal{true};
int _secondsBetween{3};
int _checkInterval{100};
unsigned long long _done;
unsigned long long _hits;
int _lastTime;
std::string _units;
ThreadSafeString _name;
};
/*
* Wraps a ProgressMeter and calls finished() when destructed. This may only exist as long as the
* underlying ProgressMeter, which is owned by CurOp.
*/
class ProgressMeterHolder {
ProgressMeterHolder(const ProgressMeterHolder&) = delete;
ProgressMeterHolder& operator=(const ProgressMeterHolder&) = delete;
public:
ProgressMeterHolder() : _pm(nullptr) {}
ProgressMeterHolder(ProgressMeter& pm) : _pm(&pm) {}
~ProgressMeterHolder() {
if (_pm) {
_pm->finished();
}
}
void set(ProgressMeter& pm) {
_pm = ±
}
ProgressMeter* operator->() {
return _pm;
}
ProgressMeter* get() {
return _pm;
}
bool hit(int n = 1) {
return _pm->hit(n);
}
void finished() {
_pm->finished();
}
private:
ProgressMeter* _pm;
};
}
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