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#region Copyright notice and license
// Copyright 2015 gRPC authors.
//
// 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.
#endregion
using System;
using System.Runtime.InteropServices;
using System.Text;
using Grpc.Core;
namespace Grpc.Core.Internal
{
/// <summary>
/// grpcsharp_batch_context
/// </summary>
internal class BatchContextSafeHandle : SafeHandleZeroIsInvalid
{
static readonly NativeMethods Native = NativeMethods.Get();
private BatchContextSafeHandle()
{
}
public static BatchContextSafeHandle Create()
{
return Native.grpcsharp_batch_context_create();
}
public IntPtr Handle
{
get
{
return handle;
}
}
// Gets data of recv_initial_metadata completion.
public Metadata GetReceivedInitialMetadata()
{
IntPtr metadataArrayPtr = Native.grpcsharp_batch_context_recv_initial_metadata(this);
return MetadataArraySafeHandle.ReadMetadataFromPtrUnsafe(metadataArrayPtr);
}
// Gets data of recv_status_on_client completion.
public ClientSideStatus GetReceivedStatusOnClient()
{
UIntPtr detailsLength;
IntPtr detailsPtr = Native.grpcsharp_batch_context_recv_status_on_client_details(this, out detailsLength);
string details = MarshalUtils.PtrToStringUTF8(detailsPtr, (int) detailsLength.ToUInt32());
var status = new Status(Native.grpcsharp_batch_context_recv_status_on_client_status(this), details);
IntPtr metadataArrayPtr = Native.grpcsharp_batch_context_recv_status_on_client_trailing_metadata(this);
var metadata = MetadataArraySafeHandle.ReadMetadataFromPtrUnsafe(metadataArrayPtr);
return new ClientSideStatus(status, metadata);
}
// Gets data of recv_message completion.
public byte[] GetReceivedMessage()
{
IntPtr len = Native.grpcsharp_batch_context_recv_message_length(this);
if (len == new IntPtr(-1))
{
return null;
}
byte[] data = new byte[(int)len];
Native.grpcsharp_batch_context_recv_message_to_buffer(this, data, new UIntPtr((ulong)data.Length));
return data;
}
// Gets data of receive_close_on_server completion.
public bool GetReceivedCloseOnServerCancelled()
{
return Native.grpcsharp_batch_context_recv_close_on_server_cancelled(this) != 0;
}
protected override bool ReleaseHandle()
{
Native.grpcsharp_batch_context_destroy(handle);
return true;
}
}
}
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