/// <summary>
/// Wait the desidered time and update DNS
/// </summary>
public void WaitAndUpdate()
{
UpdateStatus ret;
timerWait tmrTimedUpdate = new timerWait();
timerWait tmrIpChangeDetect = new timerWait();
timerWait tmrIpChangeUpdate = new timerWait();
bool ipChanged = false;
timerWait tmrRateLimiter = new timerWait();
ret = UpdateDns(AppSettings.user, AppSettings.password, AppSettings.hostname, AppSettings.updateLink);
AppSettings.lastUpdateStatus = ret;
AppSettings.lastUpdateStatusChanged = true;
AddLog("Updating DNS: " + ret.ToString());
while (AppSettings.exitUpdateLoop == false)
{
if (Wait(ref tmrTimedUpdate, AppSettings.updateInterval * 60) == true)//default updateInterval is 60 min
{
ret = UpdateDns(AppSettings.user, AppSettings.password, AppSettings.hostname, AppSettings.updateLink);
AppSettings.lastUpdateStatus = ret;
AppSettings.lastUpdateStatusChanged = true;
AddLog("Updating DNS: " + ret.ToString());
oldNetCardIdAndIp = null;//prevent next ip change check from trigger: if you boot from standby after long time and every timer is expired, probably you are also reconnecting, no need to update twice
}
if (AppSettings.checkAlsoLocalIpChange == true)
{
if (Wait(ref tmrIpChangeDetect, 30) == true)//every 30 second check for local ip change
{
ipChanged = IpIdChangedSinceLastCall();
tmrIpChangeUpdate.oldTime = DateTime.Now; //reset timer
}
if (Wait(ref tmrIpChangeUpdate, 15) == true && ipChanged == true && ipBasedUpdaterRateLimiter > 0) //after 15 second do the actual update
{
//if status changed and i have lives, update ddns. 30sec delay to ensure you are connected after network change
ipChanged = false; //disable timer
ipBasedUpdaterRateLimiter--; //use a life
ret = UpdateDns(AppSettings.user, AppSettings.password, AppSettings.hostname, AppSettings.updateLink);
AppSettings.lastUpdateStatus = ret;
AppSettings.lastUpdateStatusChanged = true;
tmrTimedUpdate.oldTime = DateTime.Now;//reset timer, we updated just now because of ip change, so reset timed update
if (ipBasedUpdaterRateLimiter > 0)
{
AddLog("Ip changed, updating DNS: " + ret.ToString());
}
else
{
AddLog("Ip changed (rate limited), updating DNS: " + ret.ToString());
}
}
if (Wait(ref tmrRateLimiter, 10 * 60) == true)//every 10 minutes add a "life" to rate limiter counter
{
if (ipBasedUpdaterRateLimiter < 3)
{
ipBasedUpdaterRateLimiter++;//this means that you have 3 fast(30 sec) updates and then you will be rate limited to 1 every 5 minutes, in case of slower update you eventually regain all 3 fast updates
}
}
}
System.Threading.Thread.Sleep(1000);//1 sec
}
}
/// <summary>
/// PC Clock based wait
/// </summary>
/// <param name="t">structure that hold current and old time</param>
/// <param name="seconds">seconds to wait</param>
/// <returns></returns>
bool Wait(ref timerWait t, uint seconds)
{
if (t.oldTime.ToBinary() == 0)
{
t.oldTime = DateTime.Now; //init
}
t.myTime = DateTime.Now;
TimeSpan diff = t.myTime.Subtract(t.oldTime);
if ((uint)diff.TotalSeconds < seconds)
{
return(false); //not yet
}
t.oldTime = t.myTime; //reset
return(true); //done
}
