public async Task <bool> SendHeartbeatAsync(DistributedLockSettings settings)
{
Check.NotNull(settings, nameof(settings));
if (settings is NullLockSettings)
{
return(await NullLockManager.SendHeartbeatAsync(settings).ConfigureAwait(false));
}
try
{
using var scope = _serviceScopeFactory.CreateScope();
return(await SendHeartbeatAsync(settings.ResourceName, settings.UniqueId, scope.ServiceProvider)
.ConfigureAwait(false));
}
catch (Exception ex)
{
_logger.LogDebug(
CoreEventIds.FailedToSendDistributedLockHeartbeat,
ex,
"Failed to send heartbeat for lock {lockName} ({lockUniqueId}). See inner exception for details.",
settings.ResourceName,
settings.UniqueId);
return(false);
}
}
/// <summary>
/// Ensures that the lock is still valid, otherwise tries to re-acquire it.
/// </summary>
/// <param name="cancellationToken">
/// A <see cref="CancellationToken" /> to observe while waiting for the task to complete.
/// </param>
/// <returns>
/// A <see cref="Task" /> representing the asynchronous operation.
/// </returns>
public async Task RenewAsync(CancellationToken cancellationToken = default)
{
if (Status == DistributedLockStatus.Released)
{
throw new InvalidOperationException("This lock was explicitly released and cannot be renewed.");
}
await CheckIsStillLockedAsync().ConfigureAwait(false);
if (Status == DistributedLockStatus.Acquired)
{
await _lockManager.SendHeartbeatAsync(_settings).ConfigureAwait(false);
}
else
{
await _lockManager.AcquireAsync(_settings, cancellationToken).ConfigureAwait(false);
Status = DistributedLockStatus.Acquired;
}
}
public async Task <bool> SendHeartbeatAsync(DistributedLockSettings settings)
{
Check.NotNull(settings, nameof(settings));
if (settings is NullLockSettings)
{
return(await NullLockManager.SendHeartbeatAsync(settings).ConfigureAwait(false));
}
try
{
using var scope = _serviceScopeFactory.CreateScope();
return(await SendHeartbeatAsync(
settings.ResourceName,
settings.UniqueId,
scope.ServiceProvider)
.ConfigureAwait(false));
}
catch (Exception ex)
{
_logger.LogFailedToSendLockHeartbeat(settings, ex);
return(false);
}
}