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Merge pull request #237 from dworkin/feature/async-dotnet

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Async I/O for dotnet
This commit is contained in:
Bill Zissimopoulos
2019-06-21 14:48:30 -07:00
committed by GitHub
parent 79b2f38d87 bfd8dca62d
commit f0d7e5b322
4 changed files with 366 additions and 3 deletions
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83
src/dotnet/FileSystemHost.cs
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@ -386,6 +386,89 @@ namespace Fsp
{
return Api.GetVersion();
}
/// <summary>
/// Returns a RequestHint to reference the current operation asynchronously.
/// </summary>
public UInt64 GetOperationRequestHint()
{
return Api.FspFileSystemGetOperationRequestHint();
}
/// <summary>
/// Asynchronously complete a Write operation.
/// </summary>
/// <param name="RequestHint">
/// A reference to the operation to complete.
/// </param>
/// <param name="Status">
/// STATUS_SUCCESS or error code.
/// </param>
/// <param name="BytesTransferred">
/// The number of bytes written.
/// </param>
/// <param name="FileInfo">
/// Updated file information.
/// </param>
public void SendWriteResponse(UInt64 RequestHint, Int32 Status, UInt32 BytesTransferred, ref FileInfo FileInfo)
{
var Response = new FspFsctlTransactRsp()
{
Size = 128,
Kind = (UInt32) FspFsctlTransact.WriteKind,
Hint = RequestHint
};
Response.IoStatus.Information = BytesTransferred;
Response.IoStatus.Status = (UInt32) Status;
Response.WriteFileInfo = FileInfo;
Api.FspFileSystemSendResponse(_FileSystemPtr, ref Response);
}
/// <summary>
/// Asynchronously complete a Read operation.
/// </summary>
/// <param name="RequestHint">
/// A reference to the operation to complete.
/// </param>
/// <param name="Status">
/// STATUS_SUCCESS or error code.
/// </param>
/// <param name="BytesTransferred">
/// Number of bytes read.
/// </param>
public void SendReadResponse(UInt64 RequestHint, Int32 Status, UInt32 BytesTransferred)
{
var Response = new FspFsctlTransactRsp()
{
Size = 128,
Kind = (UInt32) FspFsctlTransact.ReadKind,
Hint = RequestHint
};
Response.IoStatus.Information = BytesTransferred;
Response.IoStatus.Status = (UInt32) Status;
Api.FspFileSystemSendResponse(_FileSystemPtr, ref Response);
}
/// <summary>
/// Asynchronously complete a ReadDirectory operation.
/// </summary>
/// <param name="RequestHint">
/// A reference to the operation to complete.
/// </param>
/// <param name="Status">
/// STATUS_SUCCESS or error code.
/// </param>
/// <param name="BytesTransferred">
/// Number of bytes read.
/// </param>
public void SendReadDirectoryResponse(UInt64 RequestHint, Int32 Status, UInt32 BytesTransferred)
{
var Response = new FspFsctlTransactRsp()
{
Size = 128,
Kind = (UInt32) FspFsctlTransact.QueryDirectoryKind,
Hint = RequestHint
};
Response.IoStatus.Information = BytesTransferred;
Response.IoStatus.Status = (UInt32) Status;
Api.FspFileSystemSendResponse(_FileSystemPtr, ref Response);
}
/* FSP_FILE_SYSTEM_INTERFACE */
private static Byte[] ByteBufferNotNull = new Byte[0];