// Begin counting available requests.
internal async Task StartQuotaCount(SheetsService sheetsService, string sessionsSpreadsheetId, CancellationToken cancellationToken)
{
// Await limiter repository
await SessionRequestsLimiter._limiterSemaphore.WaitAsync();
try
{
// Throw if cancellation has been requested after semaphore has been released
cancellationToken.ThrowIfCancellationRequested();
// Engage initialization mode to await deadlock when obtaining initial available quota
this._initializationMode = true;
this._stopped = false;
await Task.Run(() => this.AvailableQuota = SessionsRepository.RetrieveInitialAvailableQuota(sheetsService, sessionsSpreadsheetId));
}
// Finally release limiter repository
finally
{
this._initializationMode = false;
SessionRequestsLimiter._limiterSemaphore.Release();
}
// Do not await
#pragma warning disable CS4014 // Do not await task to return on operational and still maintain data consistency.
Task.Run(async() =>
{
while (!this._stopped)
{
await Task.Delay(1000, cancellationToken);
if ((this.AvailableQuota + SessionRequestsLimiter.QuotaRequestsPerSec) > SessionRequestsLimiter.QuotaRequestsLimit)
{
this.AvailableQuota = SessionRequestsLimiter.QuotaRequestsLimit;
}
else
{
this.AvailableQuota += SessionRequestsLimiter.QuotaRequestsPerSec;
}
}
}, cancellationToken);
#pragma warning restore CS4014
}
