async static Task StartAttemptingAcquisition(
LockingCoordinator lockingCoordinator,
LockId lockId,
ILogger logger,
CancellationTokenSource lockingCancellationSource,
IObserver<object> observer)
{
var holdingLock = false;
var retryInterval = lockId.CalculateRetryInterval();
var randomGenerator = new Random(Guid.NewGuid().GetHashCode());
while (!lockingCancellationSource.IsCancellationRequested && !holdingLock)
{
try
{
holdingLock = await lockingCoordinator.TryAcquireLock(lockId).ConfigureAwait(false);
if(holdingLock)
{
logger.ToInfoLog(string.Format("DISTRIBUTED LOCK ACQUIRED for {0}", lockId.Resource));
}
else
{
logger.ToDebugLog("Unable to acquire the lock, retrying...");
await TaskUtils.SilentlyCanceledDelay(
randomGenerator.Next(retryInterval.First(), retryInterval.Second()),
lockingCancellationSource.Token)
.ConfigureAwait(false);
}
}
catch (Exception ex)
{
observer.OnError(ex);
if(lockingCoordinator != null)
await lockingCoordinator
.TryReleaseTheLock(lockId)
.ConfigureAwait(false);
holdingLock = false;
}
}
}
