Files
quantconnect--lean/Common/Interfaces/IDataCacheProvider.cs
Martin Molinero c226914322 Value types thread safety changes
- Refactor ZipDataCacheProvider to avoid value types thread issues, it
  will now use a timer. Add missing dispose calls.
- Synchronizer won't share the `SubscriptionFrontierTimeProvider`
  instance since it's not thread safe and shouldn't be called
- Fix BacktestingResultHandler `_daysProcessed` thread safety
- Fixing `RealTimeScheduleEventService` thread safety
2020-05-01 16:58:29 -03:00

47 lines
1.6 KiB
C#

/*
* QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
* Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
using System;
using System.IO;
namespace QuantConnect.Interfaces
{
/// <summary>
/// Defines a cache for data
/// </summary>
public interface IDataCacheProvider : IDisposable
{
/// <summary>
/// Property indicating the data is temporary in nature and should not be cached
/// </summary>
bool IsDataEphemeral { get; }
/// <summary>
/// Fetch data from the cache
/// </summary>
/// <param name="key">A string representing the key of the cached data</param>
/// <returns>An <see cref="Stream"/> of the cached data</returns>
Stream Fetch(string key);
/// <summary>
/// Store the data in the cache
/// </summary>
/// <param name="key">The source of the data, used as a key to retrieve data in the cache</param>
/// <param name="data">The data to cache as a byte array</param>
void Store(string key, byte[] data);
}
}