/// <summary>
/// Creates MongoDB distributed lock
/// </summary>
/// <param name="resource">Lock resource</param>
/// <param name="timeout">Lock timeout</param>
/// <param name="database">Lock database</param>
/// <param name="storageOptions">Database options</param>
/// <exception cref="DistributedLockTimeoutException">Thrown if lock is not acuired within the timeout</exception>
/// <exception cref="MongoDistributedLockException">Thrown if other mongo specific issue prevented the lock to be acquired</exception>
public MongoDistributedLock(string resource, TimeSpan timeout, HangfireDbContext database, MongoStorageOptions storageOptions)
{
_resource = resource ?? throw new ArgumentNullException(nameof(resource));
_database = database ?? throw new ArgumentNullException(nameof(database));
_storageOptions = storageOptions ?? throw new ArgumentNullException(nameof(storageOptions));
if (string.IsNullOrEmpty(resource))
{
throw new ArgumentException($@"The {nameof(resource)} cannot be empty", nameof(resource));
}
if (timeout.TotalSeconds > int.MaxValue)
{
throw new ArgumentException($"The timeout specified is too large. Please supply a timeout equal to or less than {int.MaxValue} seconds", nameof(timeout));
}
_signal = new MongoSignal(_database.Signal);
if (!AcquiredLocks.Value.ContainsKey(_resource) || AcquiredLocks.Value[_resource] == 0)
{
Cleanup();
Acquire(timeout);
AcquiredLocks.Value[_resource] = 1;
StartHeartBeat();
}
else
{
AcquiredLocks.Value[_resource]++;
}
}
public MongoJobQueue(HangfireDbContext database, MongoStorageOptions storageOptions)
{
_database = database ?? throw new ArgumentNullException(nameof(database));
_storageOptions = storageOptions ?? throw new ArgumentNullException(nameof(storageOptions));
_signal = new MongoSignal(database.Signal);
}