kosslan/quickshell
1
0
Fork 0
forked from quickshell/quickshell
Code Pull requests Activity

core/clock: fix instability causing timer to fire multiple times

Browse source 
If the signal was fired slightly before the scheduled time, it would
schedule itself again a couple ms in the future.
This commit is contained in:
outfoxxed 2024-07-31 02:37:05 -07:00
parent a4903eaefc
commit 9555b201fe
Signed by: outfoxxed
GPG key ID: 4C88A185FB89301E
2 changed files with 58 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

80
src/core/clock.cpp
View file

@ -8,7 +8,7 @@
#include "util.hpp"
SystemClock::SystemClock(QObject* parent): QObject(parent) {
QObject::connect(&this->timer, &QTimer::timeout, this, &SystemClock::update);
QObject::connect(&this->timer, &QTimer::timeout, this, &SystemClock::onTimeout);
this->update();
}
@ -30,41 +30,63 @@ void SystemClock::setPrecision(SystemClock::Enum precision) {
this->update();
}
void SystemClock::onTimeout() {
this->setTime(this->nextTime);
this->schedule(this->nextTime);
}
void SystemClock::update() {
auto time = QTime::currentTime();
if (this->mEnabled) {
auto secondPrecision = this->mPrecision >= SystemClock::Seconds;
auto secondChanged = this->setSeconds(secondPrecision ? time.second() : 0);
auto minutePrecision = this->mPrecision >= SystemClock::Minutes;
auto minuteChanged = this->setMinutes(minutePrecision ? time.minute() : 0);
auto hourPrecision = this->mPrecision >= SystemClock::Hours;
auto hourChanged = this->setHours(hourPrecision ? time.hour() : 0);
DropEmitter::call(secondChanged, minuteChanged, hourChanged);
auto nextTime = QTime(
hourPrecision ? time.hour() : 0,
minutePrecision ? time.minute() : 0,
secondPrecision ? time.second() : 0
);
if (secondPrecision) nextTime = nextTime.addSecs(1);
else if (minutePrecision) nextTime = nextTime.addSecs(60);
else if (hourPrecision) nextTime = nextTime.addSecs(3600);
auto delay = time.msecsTo(nextTime);
// day rollover
if (delay < 0) delay += 86400000;
this->timer.start(delay);
this->setTime(QTime::currentTime());
this->schedule(QTime::currentTime());
} else {
this->timer.stop();
}
}
void SystemClock::setTime(QTime time) {
auto secondPrecision = this->mPrecision >= SystemClock::Seconds;
auto secondChanged = this->setSeconds(secondPrecision ? time.second() : 0);
auto minutePrecision = this->mPrecision >= SystemClock::Minutes;
auto minuteChanged = this->setMinutes(minutePrecision ? time.minute() : 0);
auto hourPrecision = this->mPrecision >= SystemClock::Hours;
auto hourChanged = this->setHours(hourPrecision ? time.hour() : 0);
DropEmitter::call(secondChanged, minuteChanged, hourChanged);
}
void SystemClock::schedule(QTime floor) {
auto secondPrecision = this->mPrecision >= SystemClock::Seconds;
auto minutePrecision = this->mPrecision >= SystemClock::Minutes;
auto hourPrecision = this->mPrecision >= SystemClock::Hours;
setnext:
auto nextTime = QTime(
hourPrecision ? floor.hour() : 0,
minutePrecision ? floor.minute() : 0,
secondPrecision ? floor.second() : 0
);
if (secondPrecision) nextTime = nextTime.addSecs(1);
else if (minutePrecision) nextTime = nextTime.addSecs(60);
else if (hourPrecision) nextTime = nextTime.addSecs(3600);
auto delay = QTime::currentTime().msecsTo(nextTime);
// If off by more than 2 hours we likely wrapped around midnight.
if (delay < -7200000) delay += 86400000;
else if (delay < 0) {
// Otherwise its just the timer being unstable.
floor = QTime::currentTime();
goto setnext;
}
this->timer.start(delay);
this->nextTime = nextTime;
}
DEFINE_MEMBER_GETSET(SystemClock, hours, setHours);
DEFINE_MEMBER_GETSET(SystemClock, minutes, setMinutes);
DEFINE_MEMBER_GETSET(SystemClock, seconds, setSeconds);

8
src/core/clock.hpp
View file

@ -1,5 +1,6 @@
#pragma once
#include <qdatetime.h>
#include <qobject.h>
#include <qqmlintegration.h>
#include <qtimer.h>
@ -49,7 +50,7 @@ signals:
void secondsChanged();
private slots:
void update();
void onTimeout();
private:
bool mEnabled = true;
@ -58,6 +59,11 @@ private:
quint32 mMinutes = 0;
quint32 mSeconds = 0;
QTimer timer;
QTime nextTime;
void update();
void setTime(QTime time);
void schedule(QTime floor);
DECLARE_PRIVATE_MEMBER(SystemClock, hours, setHours, mHours, hoursChanged);
DECLARE_PRIVATE_MEMBER(SystemClock, minutes, setMinutes, mMinutes, minutesChanged);