| #region Copyright notice and license |
| // Copyright 2015, 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.Diagnostics; |
| using System.Runtime.InteropServices; |
| using Grpc.Core; |
| using Grpc.Core.Utils; |
| using Grpc.Core.Profiling; |
| |
| namespace Grpc.Core.Internal |
| { |
| /// <summary> |
| /// grpc_call from <c>grpc/grpc.h</c> |
| /// </summary> |
| internal class CallSafeHandle : SafeHandleZeroIsInvalid, INativeCall |
| { |
| public static readonly CallSafeHandle NullInstance = new CallSafeHandle(); |
| static readonly NativeMethods Native = NativeMethods.Get(); |
| |
| const uint GRPC_WRITE_BUFFER_HINT = 1; |
| CompletionRegistry completionRegistry; |
| CompletionQueueSafeHandle completionQueue; |
| |
| private CallSafeHandle() |
| { |
| } |
| |
| public void Initialize(CompletionRegistry completionRegistry, CompletionQueueSafeHandle completionQueue) |
| { |
| this.completionRegistry = completionRegistry; |
| this.completionQueue = completionQueue; |
| } |
| |
| public void SetCredentials(CallCredentialsSafeHandle credentials) |
| { |
| Native.grpcsharp_call_set_credentials(this, credentials).CheckOk(); |
| } |
| |
| public void StartUnary(UnaryResponseClientHandler callback, byte[] payload, MetadataArraySafeHandle metadataArray, WriteFlags writeFlags) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success, context.GetReceivedStatusOnClient(), context.GetReceivedMessage(), context.GetReceivedInitialMetadata())); |
| Native.grpcsharp_call_start_unary(this, ctx, payload, new UIntPtr((ulong)payload.Length), metadataArray, writeFlags) |
| .CheckOk(); |
| } |
| } |
| |
| public void StartUnary(BatchContextSafeHandle ctx, byte[] payload, MetadataArraySafeHandle metadataArray, WriteFlags writeFlags) |
| { |
| using (Profilers.ForCurrentThread().NewScope("CallSafeHandle.StartUnary")) |
| { |
| Native.grpcsharp_call_start_unary(this, ctx, payload, new UIntPtr((ulong)payload.Length), metadataArray, writeFlags) |
| .CheckOk(); |
| } |
| } |
| |
| public void StartClientStreaming(UnaryResponseClientHandler callback, MetadataArraySafeHandle metadataArray) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success, context.GetReceivedStatusOnClient(), context.GetReceivedMessage(), context.GetReceivedInitialMetadata())); |
| Native.grpcsharp_call_start_client_streaming(this, ctx, metadataArray).CheckOk(); |
| } |
| } |
| |
| public void StartServerStreaming(ReceivedStatusOnClientHandler callback, byte[] payload, MetadataArraySafeHandle metadataArray, WriteFlags writeFlags) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success, context.GetReceivedStatusOnClient())); |
| Native.grpcsharp_call_start_server_streaming(this, ctx, payload, new UIntPtr((ulong)payload.Length), metadataArray, writeFlags).CheckOk(); |
| } |
| } |
| |
| public void StartDuplexStreaming(ReceivedStatusOnClientHandler callback, MetadataArraySafeHandle metadataArray) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success, context.GetReceivedStatusOnClient())); |
| Native.grpcsharp_call_start_duplex_streaming(this, ctx, metadataArray).CheckOk(); |
| } |
| } |
| |
| public void StartSendMessage(SendCompletionHandler callback, byte[] payload, WriteFlags writeFlags, bool sendEmptyInitialMetadata) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success)); |
| Native.grpcsharp_call_send_message(this, ctx, payload, new UIntPtr((ulong)payload.Length), writeFlags, sendEmptyInitialMetadata).CheckOk(); |
| } |
| } |
| |
| public void StartSendCloseFromClient(SendCompletionHandler callback) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success)); |
| Native.grpcsharp_call_send_close_from_client(this, ctx).CheckOk(); |
| } |
| } |
| |
| public void StartSendStatusFromServer(SendCompletionHandler callback, Status status, MetadataArraySafeHandle metadataArray, bool sendEmptyInitialMetadata) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success)); |
| Native.grpcsharp_call_send_status_from_server(this, ctx, status.StatusCode, status.Detail, metadataArray, sendEmptyInitialMetadata).CheckOk(); |
| } |
| } |
| |
| public void StartReceiveMessage(ReceivedMessageHandler callback) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success, context.GetReceivedMessage())); |
| Native.grpcsharp_call_recv_message(this, ctx).CheckOk(); |
| } |
| } |
| |
| public void StartReceiveInitialMetadata(ReceivedResponseHeadersHandler callback) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success, context.GetReceivedInitialMetadata())); |
| Native.grpcsharp_call_recv_initial_metadata(this, ctx).CheckOk(); |
| } |
| } |
| |
| public void StartServerSide(ReceivedCloseOnServerHandler callback) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success, context.GetReceivedCloseOnServerCancelled())); |
| Native.grpcsharp_call_start_serverside(this, ctx).CheckOk(); |
| } |
| } |
| |
| public void StartSendInitialMetadata(SendCompletionHandler callback, MetadataArraySafeHandle metadataArray) |
| { |
| using (completionQueue.NewScope()) |
| { |
| var ctx = BatchContextSafeHandle.Create(); |
| completionRegistry.RegisterBatchCompletion(ctx, (success, context) => callback(success)); |
| Native.grpcsharp_call_send_initial_metadata(this, ctx, metadataArray).CheckOk(); |
| } |
| } |
| |
| public void Cancel() |
| { |
| Native.grpcsharp_call_cancel(this).CheckOk(); |
| } |
| |
| public void CancelWithStatus(Status status) |
| { |
| Native.grpcsharp_call_cancel_with_status(this, status.StatusCode, status.Detail).CheckOk(); |
| } |
| |
| public string GetPeer() |
| { |
| using (var cstring = Native.grpcsharp_call_get_peer(this)) |
| { |
| return cstring.GetValue(); |
| } |
| } |
| |
| protected override bool ReleaseHandle() |
| { |
| Native.grpcsharp_call_destroy(handle); |
| return true; |
| } |
| |
| private static uint GetFlags(bool buffered) |
| { |
| return buffered ? 0 : GRPC_WRITE_BUFFER_HINT; |
| } |
| } |
| } |