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#region Copyright notice and license
// Copyright 2015-2016, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion
using System;
using System.Collections.Concurrent;
using System.Diagnostics;
using System.Runtime.InteropServices;
using Grpc.Core.Utils;
namespace Grpc.Core.Internal
{
/// <summary>
/// grpc_server from grpc/grpc.h
/// </summary>
internal sealed class ServerSafeHandle : SafeHandleZeroIsInvalid
{
static readonly NativeMethods Native = NativeMethods.Get();
private ServerSafeHandle()
{
}
public static ServerSafeHandle NewServer(CompletionQueueSafeHandle cq, ChannelArgsSafeHandle args)
{
// Increment reference count for the native gRPC environment to make sure we don't do grpc_shutdown() before destroying the server handle.
// Doing so would make object finalizer crash if we end up abandoning the handle.
GrpcEnvironment.GrpcNativeInit();
return Native.grpcsharp_server_create(cq, args);
}
public int AddInsecurePort(string addr)
{
return Native.grpcsharp_server_add_insecure_http2_port(this, addr);
}
public int AddSecurePort(string addr, ServerCredentialsSafeHandle credentials)
{
return Native.grpcsharp_server_add_secure_http2_port(this, addr, credentials);
}
public void Start()
{
Native.grpcsharp_server_start(this);
}
public void ShutdownAndNotify(BatchCompletionDelegate callback, GrpcEnvironment environment)
{
var ctx = BatchContextSafeHandle.Create();
environment.CompletionRegistry.RegisterBatchCompletion(ctx, callback);
Native.grpcsharp_server_shutdown_and_notify_callback(this, environment.CompletionQueue, ctx);
}
public void RequestCall(BatchCompletionDelegate callback, GrpcEnvironment environment)
{
var ctx = BatchContextSafeHandle.Create();
environment.CompletionRegistry.RegisterBatchCompletion(ctx, callback);
Native.grpcsharp_server_request_call(this, environment.CompletionQueue, ctx).CheckOk();
}
protected override bool ReleaseHandle()
{
Native.grpcsharp_server_destroy(handle);
GrpcEnvironment.GrpcNativeShutdown();
return true;
}
// Only to be called after ShutdownAndNotify.
public void CancelAllCalls()
{
Native.grpcsharp_server_cancel_all_calls(this);
}
}
}
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