private int GetNextCallTime()
{
var nextCallTime = 0;
if (RateLimits.Any())
{
lock (_lock)
{
nextCallTime = RateLimits
.Max(l => l.GetNextAllowedCallTime(CallTracker));
CallTracker.CallWillHappenIn(nextCallTime);
CallTracker.TrimCallsForRateLimits(RateLimits);
}
}
return(nextCallTime);
}
internal override int GetNextAllowedCallTime(CallTracker callTracker)
{
var callHistory = callTracker.CallHistory
.OrderByDescending(x => x)
.Take(Amount)
.ToList();
if (!callHistory.Any() || callHistory.Count < Amount)
{
return(0);
}
var earliestCallTime = callHistory.OrderBy(x => x).First();
var nextCallTime = earliestCallTime.Add(TimeSpan.FromMilliseconds(TimeFrame.TotalMilliseconds));
var untilNextCall = nextCallTime.Subtract(ReferenceTime.UtcNow);
var milliseconds = untilNextCall.TotalMilliseconds < 0 ? 0 : untilNextCall.TotalMilliseconds;
return((int)Math.Ceiling(milliseconds));
}
/// <summary> /// Gets the next allowed call time in milliseconds /// </summary> /// <returns></returns> internal abstract int GetNextAllowedCallTime(CallTracker callTracker);
public RateLimiter(params RateLimit[] rateLimits)
{
RateLimits = rateLimits.ToList();
CallTracker = new CallTracker();
}
