/// <summary>
/// Asynchronously counts the number of logs stored for a particular channel
/// </summary>
/// <param name="channelName">The name of the channel to count logs for</param>
/// <returns>The number of logs found in storage</returns>
/// <exception cref="StorageException"/>
public Task <int> CountLogsAsync(string channelName)
{
return(AddTaskToQueue(() =>
{
return _storageAdapter.CountAsync <LogEntry>(entry => entry.Channel == channelName)
.GetAwaiter().GetResult();
}));
}
/// <summary>
/// Asynchronously counts the number of logs stored for a particular channel
/// </summary>
/// <param name="channelName">The name of the channel to count logs for</param>
/// <returns>The number of logs found in storage</returns>
/// <exception cref="StorageException"/>
public async Task <int> CountLogsAsync(string channelName)
{
using (await _taskLockSource.GetTaskLockAsync().ConfigureAwait(false))
{
return(await _storageAdapter.CountAsync <LogEntry>(entry => entry.Channel == channelName)
.ConfigureAwait(false));
}
}
/// <summary>
/// Asynchronously counts the number of logs stored for a particular channel
/// </summary>
/// <param name="channelName">The name of the channel to count logs for</param>
/// <returns>The number of logs found in storage</returns>
/// <exception cref="StorageException"/>
public async Task <int> CountLogsAsync(string channelName)
{
var task = new Task <int>(() =>
{
return(_storageAdapter.CountAsync <LogEntry>(entry => entry.Channel == channelName)
.Result);
});
try
{
_queue.Add(task);
}
catch (InvalidOperationException)
{
throw new StorageException("The operation has been cancelled");
}
_flushSemaphore.Release();
return(await task.ConfigureAwait(false));
}